How To Control The Heater and the Pump
Electrical Question: Can I interconnect the heater and the pump with a switch or relay to ensure that the heater fires only when the pump is in the low-speed “on” cycle?
- My 500 gallon cedar hot tub is heated by a Hydro Quip 11 kw electric heater (230v 60 amp). The pump is a SuperFlo 1.5 hp two-speed (230v 20 amp).
- The heater and the pump are wired completely independent of each other and are not interconnected. As a result, the heater high-temp limit switch frequently trips if the heater fires when the pump is in the “off” cycle of the time switch (The Intermatic time switch is simply set for pump to cycle on/off every four hours).
- Eventually, the high-temp switch fails and needs to be replaced, I suspect this is due to heat spikes occurring when the pump is in the off cycle (?) My question is: Can I interconnect the heater and the pump with a switch or relay to ensure that the heater fires only when the pump is in the low-speed “on” cycle?
Thank you!
This electrical wiring question came from: John, a Handyman from Ridgefield, Connecticut.
Additional Comments: Excellent; Very Informative.
Dave’s Reply:
Thanks for your electrical wiring question John.
Electrical Circuit Control for a Hot Tub Heater and Pump
Application: Hot Tub Heater and Pump.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on personal level experience and ability to work with tools.
Precaution: Identify the hot tub circuit, turn it OFF and Tag it with a Note before working with the wiring.
- Johns questions are specific to his application, so for the benefit for everyone else here is a summary of the solution.
- Install a relay that would be activated when the pump is turned on by the Intermatic Time Clock.
- The HydroQuip electric heater circuit would be connected through the set of contacts of the relay.
- The relay coil voltage must match the pump voltage and the relay contact rating must match that of the heater specs.
- IMPORTANT NOTE:
- In freezing temperature areas a freeze stat could also be added to override the time switch to prevent possible freezing of any parts. Insulating wherever possible will help as well.
- All of the hot tub electrical equipment must be GFI protected.
More about Wiring a Hot Tub
Wiring a switch
Wiring a Light Switch – Diagram 1
Electrical wire
- Electrical Wire for the Home
- Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Hot tub wiring
- Hot Tub Wiring Diagram Information
- Electrical Codes and Details for Spa and Hot Tub Wiring. Essentials for your installation, including the required GFCI ground fault protection and circuit wire size.
Electrical relays
- Electrical Relay Articles
- This section will cover the use of relays that are sometimes needed to control special device loads such as Air Conditioners and other high demand equipment from starting at the same time.
How To Control The Heater and the Pump
Electrical Question: Can I interconnect the heater and the pump with a switch or relay to ensure that the heater fires only when the pump is in the low-speed “on” cycle?
- My 500 gallon cedar hot tub is heated by a Hydro Quip 11 kw electric heater (230v 60 amp). The pump is a SuperFlo 1.5 hp two-speed (230v 20 amp).
- The heater and the pump are wired completely independent of each other and are not interconnected. As a result, the heater high-temp limit switch frequently trips if the heater fires when the pump is in the “off” cycle of the time switch (The Intermatic time switch is simply set for pump to cycle on/off every four hours).
- Eventually, the high-temp switch fails and needs to be replaced, I suspect this is due to heat spikes occurring when the pump is in the off cycle (?) My question is: Can I interconnect the heater and the pump with a switch or relay to ensure that the heater fires only when the pump is in the low-speed “on” cycle?
Thank you!
This electrical wiring question came from: John, a Handyman from Ridgefield, Connecticut.
Additional Comments: Excellent; Very Informative.
Dave’s Reply:
Thanks for your electrical wiring question John.
Electrical Circuit Control for a Hot Tub Heater and Pump
Application: Hot Tub Heater and Pump.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on personal level experience and ability to work with tools.
Precaution: Identify the hot tub circuit, turn it OFF and Tag it with a Note before working with the wiring.
- Johns questions are specific to his application, so for the benefit for everyone else here is a summary of the solution.
- Install a relay that would be activated when the pump is turned on by the Intermatic Time Clock.
- The HydroQuip electric heater circuit would be connected through the set of contacts of the relay.
- The relay coil voltage must match the pump voltage and the relay contact rating must match that of the heater specs.
- IMPORTANT NOTE:
- In freezing temperature areas a freeze stat could also be added to override the time switch to prevent possible freezing of any parts. Insulating wherever possible will help as well.
- All of the hot tub electrical equipment must be GFI protected.
More about Wiring a Hot Tub
Wiring a switch
Wiring a Light Switch – Diagram 1
Electrical wire
- Electrical Wire for the Home
- Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Hot tub wiring
- Hot Tub Wiring Diagram Information
- Electrical Codes and Details for Spa and Hot Tub Wiring. Essentials for your installation, including the required GFCI ground fault protection and circuit wire size.
Electrical relays
- Electrical Relay Articles
- This section will cover the use of relays that are sometimes needed to control special device loads such as Air Conditioners and other high demand equipment from starting at the same time.
Ground Wire of a Hot Tub Circuit
Electrical Question: Does a Hot Tub require a separate ground wire from the main panel?
- When hooking up the ground wire of a Hot Tub is there a separate ground wire required from the main panel.
- Or, is the ground in the main cable that supplies the power to the tub sufficient.
This electrical wiring question came from: Barry, an Electrician from Vancouver B.C Canada.
Additional Comments: Dave, I am a licensed electrician, I just have been out of the trade for about 12 years. What I have read is very interesting, I wish this was all available when I was in the trade. Thanks Barry.
Dave’s Reply:
Thanks for your electrical wiring question Barry, and Welcome Back to the Electrical Trade!
How to Bond the Ground Wire for a Hot Tub Circuit
Application: Bonding the Ground Wire System of a Hot Tub.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, Continuity Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
Notice: Installing hot tub circuit wiring should be done according to local and national electrical codes with a permit and be inspected.
The Importance of Bonding the Ground Wire
In reality, a wire is just simply a wire, however once a wire is connected then it has a special purpose. In the case of a ground wire, the ground wire by itself will not provide the bond to the ground of the earth unless there is a bond. This is the importance of a bonded ground system of every electrical circuit, and most importantly, the electrical system.
- Connection to the Ground Terminal
- Attaching the ground wire to the ground terminal strip at the power source is sufficient as long as it is a bonded ground.
- Separate Neutral and Ground Wires
- Be aware that most all hot tubs require a 4-wire cable set consisting of two insulated power conductors, an insulated neutral, and the ground wire.
- Bonded Ground at a Sub Panel
- If the circuit for the hot tub is connected to a sub panel then the sub panel must be wired with a 4-wire cable which includes a separate neutral wire and a separate ground wire.
- Bonded Ground at a Main Panel
- If the circuit for the hot tub is connected to the main panel then main panel must have a bonded ground system which is properly connected to the earth ground.
- Hot Tube Circuit Cable Size
- The cable size of the hot tub circuit will depend on the specific size and features of the hot tub which will then determine the circuit size. Consult the installation manual for the specific circuit requirements.
More about Wiring a Hot Tub
Hot tub wiring
Hot Tub Wiring Diagram Information
Electrical Codes and Details for Spa and Hot Tub Wiring. Essentials for your installation, including the required GFCI ground fault protection and circuit wire size.
Electric panel
House Wiring Circuits and Circuit Breakers
This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Electrical wire
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Electrical Codes for Grounding
Electrician Explains Electrical Codes for Grounding Home Electrical Panels and Electrical Circuit Wiring with Photos, Wiring Diagrams and Answers to Your Questions
Ground Wire of a Hot Tub Circuit
Electrical Question: Does a Hot Tub require a separate ground wire from the main panel?
- When hooking up the ground wire of a Hot Tub is there a separate ground wire required from the main panel.
- Or, is the ground in the main cable that supplies the power to the tub sufficient.
This electrical wiring question came from: Barry, an Electrician from Vancouver B.C Canada.
Additional Comments: Dave, I am a licensed electrician, I just have been out of the trade for about 12 years. What I have read is very interesting, I wish this was all available when I was in the trade. Thanks Barry.
Dave’s Reply:
Thanks for your electrical wiring question Barry, and Welcome Back to the Electrical Trade!
How to Bond the Ground Wire for a Hot Tub Circuit
Application: Bonding the Ground Wire System of a Hot Tub.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, Continuity Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
Notice: Installing hot tub circuit wiring should be done according to local and national electrical codes with a permit and be inspected.
The Importance of Bonding the Ground Wire
In reality, a wire is just simply a wire, however once a wire is connected then it has a special purpose. In the case of a ground wire, the ground wire by itself will not provide the bond to the ground of the earth unless there is a bond. This is the importance of a bonded ground system of every electrical circuit, and most importantly, the electrical system.
- Connection to the Ground Terminal
- Attaching the ground wire to the ground terminal strip at the power source is sufficient as long as it is a bonded ground.
- Separate Neutral and Ground Wires
- Be aware that most all hot tubs require a 4-wire cable set consisting of two insulated power conductors, an insulated neutral, and the ground wire.
- Bonded Ground at a Sub Panel
- If the circuit for the hot tub is connected to a sub panel then the sub panel must be wired with a 4-wire cable which includes a separate neutral wire and a separate ground wire.
- Bonded Ground at a Main Panel
- If the circuit for the hot tub is connected to the main panel then main panel must have a bonded ground system which is properly connected to the earth ground.
- Hot Tube Circuit Cable Size
- The cable size of the hot tub circuit will depend on the specific size and features of the hot tub which will then determine the circuit size. Consult the installation manual for the specific circuit requirements.
More about Wiring a Hot Tub
Hot tub wiring
Hot Tub Wiring Diagram Information
Electrical Codes and Details for Spa and Hot Tub Wiring. Essentials for your installation, including the required GFCI ground fault protection and circuit wire size.
Electric panel
House Wiring Circuits and Circuit Breakers
This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Electrical wire
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Electrical Codes for Grounding
Electrician Explains Electrical Codes for Grounding Home Electrical Panels and Electrical Circuit Wiring with Photos, Wiring Diagrams and Answers to Your Questions
Installing Hot Tub Wiring
Electrical Question: I am installing a hot tub and have questions about the electrical circuit and wiring.
- When wiring a hot tub either 240v or 125 volt, understanding a disconnect is require within site and be protected by GFCI, What is the minimum distance that the hot tub be away from the Disconnect Panel outside.
This electrical question came from: Thomas, from Hobe Sound, Florida
- I bought a used hot tub from a friend and poured a concrete patio and built a deck off my master and placed it there.
- It is approximately 150 feet, rounding up, from the main panel. The main panel is on the far opposite end of where the hot tub is.
- I’ve been told I need a 50 amp disconnect no more than 5 feet from the hot tub, no problem. However, I was told I needed 4/3 wire to wire it up because of the distance. other people are saying that 6/3 would be just fine.
- I plan on running it up through the attic and drop the wire down to the main panel.
- I’ve been searching to find the best price on wire but copper is high. Any help or suggestions would be greatly appreciated.
This electrical wiring question came from Bryan, in Louisville, Kentucky.
Dave’s Reply:Thanks for your electrical question Thomas and Bryan.
Electrical Wiring for a Hot Tub
Application: Wiring a Hot Tub GFCI Circuit.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
Notice: Installing hot tub circuit wiring should be done according to local and national electrical codes with a permit and all work should be inspected.
Installing Hot Tub Wiring and the Disconnect Panel
IMPORTANT: Not All Hot Tubs are the Same!
- Please Note: Hot tubs are available in several sizes and have a variety of options. Some hot tubs have a gas heater, and others have an electric heater, therefore the required voltage, circuit size and wire type is determined by the manufacturer for each specific hot tub. These specifications are provided in the installation manual provided by the hot tub manufacturer.
Detailed Example of Installing the Electrical Wiring for a Hot Tub
- The Circuit Voltage The voltage is either 120 or 240 volt. A 4-wire circuit is typically specified for a 220 or 240 volt circuit.
- The Circuit Amperage The circuit amperage is typically 50amp or 60amp depending on the size of the hot tub.
- The Circuit Wire Size The wire size will depend on the voltage and amperage, and the distance of the wire length. Please refer to the Electrical Calculations and Formulas for more information.
- The Circuit Wire Type Copper wire is specified for most hot tubs that are 220 or 240 volts.
- GFCI Ground Fault Circuit Protection GFCI protection is required for all hot tubs, with either gas or electric heating systems.
- The wire type or electrical cable type is determined by the type of structure and if the wiring will requiring protection and require conduit.
- Selecting the Electrical Cable Factors for determining hot tub cable type include where the cable will be routed or installed, such as through a basement, crawl space or attic, etc.
- Electrical Wiring Junction Box The same is true for the junction box that will be selected for the hot tub circuit to be installed. For example: Will the junction box be surface mounted or flush mounted. The size of the junction box is determined by the size of the hot tub circuit cable.
- The Hot Tub Disconnect The disconnect switch is typically a sub panel which is located within site of the hot tub. The GFCI circuit breaker is typically installed in this sub panel.
- Connecting the Wiring of the Hot Tub The hot tub is typically equipped with wires leading from the disconnect panel into the hot tub control box. A cover plate is installed onto the control box and should be re-installed after the wiring and before energizing the circuit.
- Hot Tub Wiring Diagram The hot tub wiring diagram is located on the reverse side of the control box cover. This wiring diagram will show where the terminal connectors are located for the circuit wire connections.
- Connecting the Ground Wire The ground wires for the internal components of the hot tub are typically connected by the hot tub manufacturer. However the circuit ground wire is connected to the ground terminal which is provided by the hot tub manufacturer. When the ground wire is properly connected the ground system is bonded together with the GFCI protection device, which is typically a GFCI circuit breaker.
- Connecting the Circuit Wiring The circuit wires for the internal components of the hot tub are typically connected by the hot tub manufacturer. The circuit wires are connected to the terminals which is provided by the hot tub manufacturer. The typical terminal connections for a 220 or 240 volt hot tub circuit include Line One, Line Two, and the Neutral.
-
- Electrical Codes that apply to install New Circuit Wiring for a Hot Tub
- Code compliance for installing a hot tub is extremely important.
- Verify the circuit requirements as specified in the documentation of the hot tub documentation.
- The Hot Tub circuit must be provided with GFCI protection.
- The disconnect must be within site of the hot tub, typically within 5 feet.
- The electrical components of the hot tub circuit must be fully compatible and have the correct rated capacity.
- Protection for the electrical circuit wiring should be provided for the new wiring of the hot tub which is in accordance with all applicable electrical codes.
- Contact the local building authority in your area about the electrical codes that apply to your project.
More about Installing Electrical Wiring for a Hot Tub
Electrical Wiring Codes
Home Electrical Codes
Electrical Code Directory covering electrical GFCI.
How to Wire a 240Volt Hot Tub
Hot Tub Circuit Wiring
Electrical Codes and details for Spa and Hot Tub electrical wiring. Essentials for your hot tub installation, including the required GFCI ground fault protection and circuit wire size.
Circuit Breakers
Electrical Circuit Breakers
A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.
Home Electrical Wiring Boxes
Electrical Junction Boxes for Home Wiring
Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.
Residential Circuit Wiring
Electrical Circuit Wiring
This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Installing Hot Tub Wiring
Electrical Question: I am installing a hot tub and have questions about the electrical circuit and wiring.
- When wiring a hot tub either 240v or 125 volt, understanding a disconnect is require within site and be protected by GFCI, What is the minimum distance that the hot tub be away from the Disconnect Panel outside.
This electrical question came from: Thomas, from Hobe Sound, Florida
- I bought a used hot tub from a friend and poured a concrete patio and built a deck off my master and placed it there.
- It is approximately 150 feet, rounding up, from the main panel. The main panel is on the far opposite end of where the hot tub is.
- I’ve been told I need a 50 amp disconnect no more than 5 feet from the hot tub, no problem. However, I was told I needed 4/3 wire to wire it up because of the distance. other people are saying that 6/3 would be just fine.
- I plan on running it up through the attic and drop the wire down to the main panel.
- I’ve been searching to find the best price on wire but copper is high. Any help or suggestions would be greatly appreciated.
This electrical wiring question came from Bryan, in Louisville, Kentucky.
Dave’s Reply:Thanks for your electrical question Thomas and Bryan.
Electrical Wiring for a Hot Tub
Application: Wiring a Hot Tub GFCI Circuit.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
Notice: Installing hot tub circuit wiring should be done according to local and national electrical codes with a permit and all work should be inspected.
Installing Hot Tub Wiring and the Disconnect Panel
IMPORTANT: Not All Hot Tubs are the Same!
- Please Note: Hot tubs are available in several sizes and have a variety of options. Some hot tubs have a gas heater, and others have an electric heater, therefore the required voltage, circuit size and wire type is determined by the manufacturer for each specific hot tub. These specifications are provided in the installation manual provided by the hot tub manufacturer.
Detailed Example of Installing the Electrical Wiring for a Hot Tub
- The Circuit Voltage The voltage is either 120 or 240 volt. A 4-wire circuit is typically specified for a 220 or 240 volt circuit.
- The Circuit Amperage The circuit amperage is typically 50amp or 60amp depending on the size of the hot tub.
- The Circuit Wire Size The wire size will depend on the voltage and amperage, and the distance of the wire length. Please refer to the Electrical Calculations and Formulas for more information.
- The Circuit Wire Type Copper wire is specified for most hot tubs that are 220 or 240 volts.
- GFCI Ground Fault Circuit Protection GFCI protection is required for all hot tubs, with either gas or electric heating systems.
- The wire type or electrical cable type is determined by the type of structure and if the wiring will requiring protection and require conduit.
- Selecting the Electrical Cable Factors for determining hot tub cable type include where the cable will be routed or installed, such as through a basement, crawl space or attic, etc.
- Electrical Wiring Junction Box The same is true for the junction box that will be selected for the hot tub circuit to be installed. For example: Will the junction box be surface mounted or flush mounted. The size of the junction box is determined by the size of the hot tub circuit cable.
- The Hot Tub Disconnect The disconnect switch is typically a sub panel which is located within site of the hot tub. The GFCI circuit breaker is typically installed in this sub panel.
- Connecting the Wiring of the Hot Tub The hot tub is typically equipped with wires leading from the disconnect panel into the hot tub control box. A cover plate is installed onto the control box and should be re-installed after the wiring and before energizing the circuit.
- Hot Tub Wiring Diagram The hot tub wiring diagram is located on the reverse side of the control box cover. This wiring diagram will show where the terminal connectors are located for the circuit wire connections.
- Connecting the Ground Wire The ground wires for the internal components of the hot tub are typically connected by the hot tub manufacturer. However the circuit ground wire is connected to the ground terminal which is provided by the hot tub manufacturer. When the ground wire is properly connected the ground system is bonded together with the GFCI protection device, which is typically a GFCI circuit breaker.
- Connecting the Circuit Wiring The circuit wires for the internal components of the hot tub are typically connected by the hot tub manufacturer. The circuit wires are connected to the terminals which is provided by the hot tub manufacturer. The typical terminal connections for a 220 or 240 volt hot tub circuit include Line One, Line Two, and the Neutral.
-
- Electrical Codes that apply to install New Circuit Wiring for a Hot Tub
- Code compliance for installing a hot tub is extremely important.
- Verify the circuit requirements as specified in the documentation of the hot tub documentation.
- The Hot Tub circuit must be provided with GFCI protection.
- The disconnect must be within site of the hot tub, typically within 5 feet.
- The electrical components of the hot tub circuit must be fully compatible and have the correct rated capacity.
- Protection for the electrical circuit wiring should be provided for the new wiring of the hot tub which is in accordance with all applicable electrical codes.
- Contact the local building authority in your area about the electrical codes that apply to your project.
More about Installing Electrical Wiring for a Hot Tub
Electrical Wiring Codes
Home Electrical Codes
Electrical Code Directory covering electrical GFCI.
How to Wire a 240Volt Hot Tub
Hot Tub Circuit Wiring
Electrical Codes and details for Spa and Hot Tub electrical wiring. Essentials for your hot tub installation, including the required GFCI ground fault protection and circuit wire size.
Circuit Breakers
Electrical Circuit Breakers
A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.
Home Electrical Wiring Boxes
Electrical Junction Boxes for Home Wiring
Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.
Residential Circuit Wiring
Electrical Circuit Wiring
This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Disconnecting Hot Tub Wiring
Electrical Question: We removed our hot tub, what should I do with the electrical wiring?
- We just got rid of a hot tub and now I am left with the 220 line going to our pool deck.
- Before we tore down the hot tub, I turned off the circuit breaker at the panel they installed on the outside of the house. It provided 220 for the hot tube and runs independently from the main panel.
- What is the proper way to make this safe? I capped the ends of the line where it connected to the hot tub and left the circuit off, then I put a lock on the panel box. Is this safe enough or should I pull the breaker out completely?
- I realize the bar is still hot but other than messing around with the main supply from the pole I’m not sure what else to do.
This electrical wiring question came from Steve, in Fort Myers, Florida.
Dave’s Reply:
Thanks for your electrical wiring question Steve.
Disconnecting Hot Tub Circuit Wires
Application: Disconnect the Electrical Wiring to a Hot Tub.
Skill Level: Intermediate to Advanced. This electrical project is best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools.
Precaution: Identify the circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Installing additional electrical wiring should be done according to local and national electrical codes with a permit and be inspected.
The following is the basic process of how an electrician removes Hot Tub Circuit Wiring. If the hot tub circuit will no longer be used for any purpose then the wiring to the circuit breaker should be disconnected or completely removed by a qualified electrician.
- Removing Hot Tub Circuit Wiring
- Unused electrical wiring, especially in an outdoor location in a pool area should be completely removed to eliminate any possibility of accidental energizing which could lead to several hazardous conditions.
- At the electrical panel the hot tub circuit is located and turned off.
- The electrical wiring that was installed from the hot tub disconnect panel box to the hot tub enclosure should be pulled out and removed.
- The circuit breaker feeding the hot tub panel should be clearly identified as Unused, and turned off and marked as a Spare breaker.
More about Electrical Circuits and Electrical Safety
House Wiring Circuits and Circuit Breakers
This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Electrical Panel Circuit Listing
Home Electrical Safety
Home Electrical Safety
- Electrical Safety Articles covering several topics of home electrical safety and Do-It-Yourself Electrical Safety.
- A new approach to keep kids and electricity apart with hopes to prevent children from being injured by electricity.
Wiring a Hot Tub
Hot Tub Circuit Wiring
- Electrical Codes and details for Spa and Hot Tub electrical wiring.
- Essentials for your hot tub installation, including the required GFCI ground fault protection and circuit wire size.
Disconnecting Hot Tub Wiring
Electrical Question: We removed our hot tub, what should I do with the electrical wiring?
- We just got rid of a hot tub and now I am left with the 220 line going to our pool deck.
- Before we tore down the hot tub, I turned off the circuit breaker at the panel they installed on the outside of the house. It provided 220 for the hot tube and runs independently from the main panel.
- What is the proper way to make this safe? I capped the ends of the line where it connected to the hot tub and left the circuit off, then I put a lock on the panel box. Is this safe enough or should I pull the breaker out completely?
- I realize the bar is still hot but other than messing around with the main supply from the pole I’m not sure what else to do.
This electrical wiring question came from Steve, in Fort Myers, Florida.
Dave’s Reply:
Thanks for your electrical wiring question Steve.
Disconnecting Hot Tub Circuit Wires
Application: Disconnect the Electrical Wiring to a Hot Tub.
Skill Level: Intermediate to Advanced. This electrical project is best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools.
Precaution: Identify the circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Installing additional electrical wiring should be done according to local and national electrical codes with a permit and be inspected.
The following is the basic process of how an electrician removes Hot Tub Circuit Wiring. If the hot tub circuit will no longer be used for any purpose then the wiring to the circuit breaker should be disconnected or completely removed by a qualified electrician.
- Removing Hot Tub Circuit Wiring
- Unused electrical wiring, especially in an outdoor location in a pool area should be completely removed to eliminate any possibility of accidental energizing which could lead to several hazardous conditions.
- At the electrical panel the hot tub circuit is located and turned off.
- The electrical wiring that was installed from the hot tub disconnect panel box to the hot tub enclosure should be pulled out and removed.
- The circuit breaker feeding the hot tub panel should be clearly identified as Unused, and turned off and marked as a Spare breaker.
More about Electrical Circuits and Electrical Safety
House Wiring Circuits and Circuit Breakers
This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Electrical Panel Circuit Listing
Home Electrical Safety
Home Electrical Safety
- Electrical Safety Articles covering several topics of home electrical safety and Do-It-Yourself Electrical Safety.
- A new approach to keep kids and electricity apart with hopes to prevent children from being injured by electricity.
Wiring a Hot Tub
Hot Tub Circuit Wiring
- Electrical Codes and details for Spa and Hot Tub electrical wiring.
- Essentials for your hot tub installation, including the required GFCI ground fault protection and circuit wire size.
Wiring a 240Volt Hot Tub
Electrical Question: How can I wire a hot tub from the power source to the GFCI and the factory wired control box?
- Is there a rule of thumb for finding the high and low side of a 220volt 60 amp circuit breaker at the main power source.
- I am wiring a hot tub from the power pole to the GFCI box to the factory wired hot tub control box.
- The hot tub control box is wired for 220volt at the heater and 110volt for the pump, light, and the blower motor.
Thanks, Roy.
This electrical wiring question came from: Roy, a Handyman from Cedar Key, Florida.
Additional Comments: Your website has very good info and a lot of places to get info.
Dave’s Reply:
Thanks for your electrical wiring question Roy.
How to Connect Hot Tub GFCI Circuit Wiring
Application: Wiring a 120/240Volt Hot Tub.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician..
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
Notice: Installing hot tub circuit wiring should be performed according to local and national electrical codes, with a permit and be inspected.
Understanding a 120/240Volt 4Wire Hot Tub Circuit
Hot Tub Circuit Wiring
- Prewired Hot Tub Accessories: In most cases the hot tub manufacturer installs all of the necessary equipment for the model that you have chosen. All of the devices and equipment are already connected internally to the hot tub control panel.
- 240volt 4wire Circuit: A typical hot tub requires a 4-wire circuit to be installed and connected as per the specific hot tub. The hot tub control board and built in circuitry is already connected internally.
- Connecting the Circuit Wires: The hot tub manufacturer specifies the electrical circuit requirements. The circuit wiring is connected to the terminated strip as described ion the installation manual.
Adding Optional Equipment to a Hot Tub
- Connecting Optional Equipment: Adding optional equipment to an existing hot tub will then require planning based on the specific electrical circuit requirements, connections and controls in order to successfully integrate the additional equipment into the existing hot tub. The optional equipment to be added should be approved by the hot tub manufacturer for the specific model you have.
Hot Tub Electrical Load Balancing
- The 120/240Volt 4Wire Circuit: As for the “low side of a 220 volt circuit 6o amp circuit breaker”, a 2-pole 240 volt circuit breaker consists of two legs of power that are 120 volts each, 240 volts between the two.
- The Hot Tub Circuit Voltage: The typical home electrical panel does not have a high leg. If you are referring to balancing the load of the electrical panel then this is best accomplished by using an clamp-on amp meter which will show what the load is for each leg of power at that particular time.
- Is Load Balancing Necessary: I really do not think that you need to be concerned with load balancing this because the load balancing of the two 120 volt legs of circuit power should be performed within the hot tub control design.
Hot Tub Installation Permits and Inspections
- Essential Safety Concern and Code Compliance: Make sure that your hot tub circuit wiring and installation is done by permit and with inspections from your local building department.
More about Electrical Wiring for a Hot Tub Circuit
Wiring a Hot Tub
Hot Tub Circuit Wiring
Electrical Codes and details for Spa and Hot Tub electrical wiring. Essentials for your hot tub installation, including the required GFCI Ground fault protection and circuit wire size.
Electrical Circuit Breakers
Home Electrical Circuit Breakers
A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.
Guide to Home Electrical Wire
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Electrical Wiring Codes
Home Electrical Codes
Electrical Code Directory covering electrical wiring for hot tub circuits and GFCI protection.
Wiring a 240Volt Hot Tub
Electrical Question: How can I wire a hot tub from the power source to the GFCI and the factory wired control box?
- Is there a rule of thumb for finding the high and low side of a 220volt 60 amp circuit breaker at the main power source.
- I am wiring a hot tub from the power pole to the GFCI box to the factory wired hot tub control box.
- The hot tub control box is wired for 220volt at the heater and 110volt for the pump, light, and the blower motor.
Thanks, Roy.
This electrical wiring question came from: Roy, a Handyman from Cedar Key, Florida.
Additional Comments: Your website has very good info and a lot of places to get info.
Dave’s Reply:
Thanks for your electrical wiring question Roy.
How to Connect Hot Tub GFCI Circuit Wiring
Application: Wiring a 120/240Volt Hot Tub.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician..
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
Notice: Installing hot tub circuit wiring should be performed according to local and national electrical codes, with a permit and be inspected.
Understanding a 120/240Volt 4Wire Hot Tub Circuit
Hot Tub Circuit Wiring
- Prewired Hot Tub Accessories: In most cases the hot tub manufacturer installs all of the necessary equipment for the model that you have chosen. All of the devices and equipment are already connected internally to the hot tub control panel.
- 240volt 4wire Circuit: A typical hot tub requires a 4-wire circuit to be installed and connected as per the specific hot tub. The hot tub control board and built in circuitry is already connected internally.
- Connecting the Circuit Wires: The hot tub manufacturer specifies the electrical circuit requirements. The circuit wiring is connected to the terminated strip as described ion the installation manual.
Adding Optional Equipment to a Hot Tub
- Connecting Optional Equipment: Adding optional equipment to an existing hot tub will then require planning based on the specific electrical circuit requirements, connections and controls in order to successfully integrate the additional equipment into the existing hot tub. The optional equipment to be added should be approved by the hot tub manufacturer for the specific model you have.
Hot Tub Electrical Load Balancing
- The 120/240Volt 4Wire Circuit: As for the “low side of a 220 volt circuit 6o amp circuit breaker”, a 2-pole 240 volt circuit breaker consists of two legs of power that are 120 volts each, 240 volts between the two.
- The Hot Tub Circuit Voltage: The typical home electrical panel does not have a high leg. If you are referring to balancing the load of the electrical panel then this is best accomplished by using an clamp-on amp meter which will show what the load is for each leg of power at that particular time.
- Is Load Balancing Necessary: I really do not think that you need to be concerned with load balancing this because the load balancing of the two 120 volt legs of circuit power should be performed within the hot tub control design.
Hot Tub Installation Permits and Inspections
- Essential Safety Concern and Code Compliance: Make sure that your hot tub circuit wiring and installation is done by permit and with inspections from your local building department.
More about Electrical Wiring for a Hot Tub Circuit
Wiring a Hot Tub
Hot Tub Circuit Wiring
Electrical Codes and details for Spa and Hot Tub electrical wiring. Essentials for your hot tub installation, including the required GFCI Ground fault protection and circuit wire size.
Electrical Circuit Breakers
Home Electrical Circuit Breakers
A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.
Guide to Home Electrical Wire
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Electrical Wiring Codes
Home Electrical Codes
Electrical Code Directory covering electrical wiring for hot tub circuits and GFCI protection.
Hot Tub Panel
Electrical Question: I want to add a panel for a hot tub, some outlets and lights. Should I run a 100A service panel so I can supply power for all these circuits?
- I have a two story home that has an unfinished basement.
- There is a 200A service in the basement. I also have a semi-detached garage with a 60A panel (no main breaker).
- There is an open porch on the rear of the house that is covered by an existing roof which was part of the original construction.
- I am enclosing this porch and want to wire it with outlets.
- I want to add a hot tub (50A) outside this porch & there is an existing pool pump outside.
- Should I run a 100A service panel on the porch so I can supply the outlets, lights, etc and the hot tub?
- The hot tub will have a disconnect on the outside wall of the porch.
- My 200A panel only has two slots left which is why I want the 100A panel and it makes sense to put the 100A panel on the porch only because of the hot tub and pool.
- Do I need a permit if I do it myself. I don’t mind the fee but the inspectors in our county are kinda tough when they see its a home owner doing the work. Thanks
This electrical wiring question came from Eric, in Walton, Kentucky.
Additional Comments: Simple and straight forward. I like it!
Dave’s Reply:
Thanks for your electrical wiring question Eric.
Installing a Panel for a Hot Tub
Application: Adding a Sub Panel for a Hot Tub.
Skill Level: Intermediate to Advanced. This electrical project is best performed by a Licensed Electrician.
Tools Required: Electricians pouch of hand tools and the various power tools necessary for installing the sub-panel.
Estimated Time: Depends on the type and size of the panel and available access to the project area.
Precaution: Any existing electrical wiring within the immediate area that may interfere with the installation of the sub panel should be identified and turned OFF and Tagged if necessary. Working in an electric panel is dangerous due to arc flash hazards and the possibility of electric shock.
Notice: Installing electrical wiring for either a hot tub or a sub-panel must be done according to local and national electrical codes with a permit and the work will require inspections.
Project Considerations for a Hot Tub Panel
Panel for a Hot Tub and other Electrical Circuits
- Hot Tub Disconnect
A disconnect is required in the location of the hot tub, no closer than 6 to 10 feet from the inside wall of the tub, and a clearly labeled circuit breaker in a panel may serve as this disconnect.
- Hot Tub Panel
Careful consideration should be given about installing a panel on a porch as there may be clearance and access limitations that may affect working clearance. Installing conduits for electrical wiring of any circuits, as well as the feeder circuit to the proposed panel may be an issue. A panel which supplies power to circuits for an unfinished basement may be best installed inside the basement area in an approved location.
- Project Recommendations
For best results, an on site review of the entire project by a professional who is familiar with the applicable codes would be best. This could include a courtesy visit from one of your local building department representatives, or an electrical contractor who could review the project and make a specific proposal for you.
More about Wiring a Hot Tub and Electrical Circuit
Wiring a Hot Tub
Hot Tub Circuit Wiring
Electrical Codes and details for Spa and Hot Tub electrical wiring. Essentials for your hot tub installation, including the required GFCI ground fault protection and circuit wire size.
Home Electrical Codes
Electrical Codes for Services
Guide to Home Electrical Wire
Electrical Wire for a Residential Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Hot Tub Panel
Electrical Question: I want to add a panel for a hot tub, some outlets and lights. Should I run a 100A service panel so I can supply power for all these circuits?
- I have a two story home that has an unfinished basement.
- There is a 200A service in the basement. I also have a semi-detached garage with a 60A panel (no main breaker).
- There is an open porch on the rear of the house that is covered by an existing roof which was part of the original construction.
- I am enclosing this porch and want to wire it with outlets.
- I want to add a hot tub (50A) outside this porch & there is an existing pool pump outside.
- Should I run a 100A service panel on the porch so I can supply the outlets, lights, etc and the hot tub?
- The hot tub will have a disconnect on the outside wall of the porch.
- My 200A panel only has two slots left which is why I want the 100A panel and it makes sense to put the 100A panel on the porch only because of the hot tub and pool.
- Do I need a permit if I do it myself. I don’t mind the fee but the inspectors in our county are kinda tough when they see its a home owner doing the work. Thanks
This electrical wiring question came from Eric, in Walton, Kentucky.
Additional Comments: Simple and straight forward. I like it!
Dave’s Reply:
Thanks for your electrical wiring question Eric.
Installing a Panel for a Hot Tub
Application: Adding a Sub Panel for a Hot Tub.
Skill Level: Intermediate to Advanced. This electrical project is best performed by a Licensed Electrician.
Tools Required: Electricians pouch of hand tools and the various power tools necessary for installing the sub-panel.
Estimated Time: Depends on the type and size of the panel and available access to the project area.
Precaution: Any existing electrical wiring within the immediate area that may interfere with the installation of the sub panel should be identified and turned OFF and Tagged if necessary. Working in an electric panel is dangerous due to arc flash hazards and the possibility of electric shock.
Notice: Installing electrical wiring for either a hot tub or a sub-panel must be done according to local and national electrical codes with a permit and the work will require inspections.
Project Considerations for a Hot Tub Panel
Panel for a Hot Tub and other Electrical Circuits
- Hot Tub Disconnect
A disconnect is required in the location of the hot tub, no closer than 6 to 10 feet from the inside wall of the tub, and a clearly labeled circuit breaker in a panel may serve as this disconnect.
- Hot Tub Panel
Careful consideration should be given about installing a panel on a porch as there may be clearance and access limitations that may affect working clearance. Installing conduits for electrical wiring of any circuits, as well as the feeder circuit to the proposed panel may be an issue. A panel which supplies power to circuits for an unfinished basement may be best installed inside the basement area in an approved location.
- Project Recommendations
For best results, an on site review of the entire project by a professional who is familiar with the applicable codes would be best. This could include a courtesy visit from one of your local building department representatives, or an electrical contractor who could review the project and make a specific proposal for you.
More about Wiring a Hot Tub and Electrical Circuit
Wiring a Hot Tub
Hot Tub Circuit Wiring
Electrical Codes and details for Spa and Hot Tub electrical wiring. Essentials for your hot tub installation, including the required GFCI ground fault protection and circuit wire size.
Home Electrical Codes
Electrical Codes for Services
Guide to Home Electrical Wire
Electrical Wire for a Residential Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Hot Tub Circuit Wiring
Electrical Question: Can I run regular 6AWG 3 conductor plus ground through a one inch conduit or do I need to run outdoor 6AWG wire?
Hot Tub Circuit Wiring – Project #1
- I’m installing electrical wiring to the hot tub located in my backyard.
- I am thinking that regular indoor wire run through conduit is OK.
- Also, to my understanding, the wire must not be buried and be above ground by at a minimum height.
This electrical question came from: Mike, a Homeowner from San Diego, California.
Hot Tub Circuit Wiring – Project #2
- I am installing a hot tub in our back yard. I have to run about 45 feet of cable indoors from the primary breaker panel to the outside wall where it will connect to the sub panel with the GFCI shutoff on the outside of the house.
- When the cable comes out of the house it will be low to the ground, so I can’t go directly into the back of that sub panel, so I will install conduit from where it comes out of the house, and up to the panel which is about 1.5-2ft.
- Can I use Romex Brand /NMD90 6/3 Type-NM Cable for this? I know Type-NM Cable is acceptable for indoors, and into the back of the panel on the outside of the wall. But, since the cable has to come out of the house low to the ground it will need to go in conduit and up about 2 feet to the sub panel on the outside wall. Is this okay? If not, what would you recommend?
- Then from the outside panel and GFCI I’ will use THHN in conduit or direct bury the wire to the hot tub.
This electrical wiring question came from Justin, in Edmonton, Alberta, Canada.
Dave’s Reply:
Thanks for your electrical question Mike.
Methods for Installing Hot Tub Circuit Wiring
Application: Wiring a Hot Tub GFCI Circuit.
Skill Level: Intermediate to Advanced – Best installed by a Licensed Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
IMPORTANT: Installing hot tub circuit wiring must be done according to applicable Local and National Electrical Codes, or Canadian Electrical Codes, with a permit, and the work must be inspected.
Examples of Hot Tub Circuit Wiring Methods
The questions asked about hot tub circuit wiring address methods which I will describe below:
- Electrical Cable for a Hot Tub
- 6/3 Romex brand or UF cable cannot be run inside long lengths of one inch conduit.
- Cable may be installed into a short length of conduit where it is used to stub up out of a trench or where emerging from a protected area such as a crawl space under a house.
- An insulated bushing mush be installed onto the end of the conduit to protect the cable.
- Wire and Conduit
- If you are using long lengths of conduit for the hot tub circuit wiring then you should install four separate conductors, and the type of wire will depend if the conduit will buried or not.
- Type THWN wire is a good choice because it is rated for buried conduit applications.
- Using a Junction Box for Hot Tub Wiring
- When using two types of wire or cable for a hot tub circuit a junction box may be installed in an accessible location where the wires may be spliced.
- Wire splices must be performed using corrosion inhibitor and approved wire splicing connectors.
- Permit and Inspections Are Required
- Do not take shortcuts or take chances. Electrical wiring projects such as this require a permit and inspections from your local building department.
- Your local building authority will be happy to assist you with your hot tub project.
More about Wiring Hot Tubs
Hot Tub Wiring Diagram
- Hot Tub Wiring
- Electrical Codes and Details for Spa and Hot Tub Wiring.
- Essentials for your installation, including the required GFCI ground fault protection and circuit wire size.
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Hot Tub Circuit Wiring
Electrical Question: Can I run regular 6AWG 3 conductor plus ground through a one inch conduit or do I need to run outdoor 6AWG wire?
Hot Tub Circuit Wiring – Project #1
- I’m installing electrical wiring to the hot tub located in my backyard.
- I am thinking that regular indoor wire run through conduit is OK.
- Also, to my understanding, the wire must not be buried and be above ground by at a minimum height.
This electrical question came from: Mike, a Homeowner from San Diego, California.
Hot Tub Circuit Wiring – Project #2
- I am installing a hot tub in our back yard. I have to run about 45 feet of cable indoors from the primary breaker panel to the outside wall where it will connect to the sub panel with the GFCI shutoff on the outside of the house.
- When the cable comes out of the house it will be low to the ground, so I can’t go directly into the back of that sub panel, so I will install conduit from where it comes out of the house, and up to the panel which is about 1.5-2ft.
- Can I use Romex Brand /NMD90 6/3 Type-NM Cable for this? I know Type-NM Cable is acceptable for indoors, and into the back of the panel on the outside of the wall. But, since the cable has to come out of the house low to the ground it will need to go in conduit and up about 2 feet to the sub panel on the outside wall. Is this okay? If not, what would you recommend?
- Then from the outside panel and GFCI I’ will use THHN in conduit or direct bury the wire to the hot tub.
This electrical wiring question came from Justin, in Edmonton, Alberta, Canada.
Dave’s Reply:
Thanks for your electrical question Mike.
Methods for Installing Hot Tub Circuit Wiring
Application: Wiring a Hot Tub GFCI Circuit.
Skill Level: Intermediate to Advanced – Best installed by a Licensed Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install the hot tub wiring.
IMPORTANT: Installing hot tub circuit wiring must be done according to applicable Local and National Electrical Codes, or Canadian Electrical Codes, with a permit, and the work must be inspected.
Examples of Hot Tub Circuit Wiring Methods
The questions asked about hot tub circuit wiring address methods which I will describe below:
- Electrical Cable for a Hot Tub
- 6/3 Romex brand or UF cable cannot be run inside long lengths of one inch conduit.
- Cable may be installed into a short length of conduit where it is used to stub up out of a trench or where emerging from a protected area such as a crawl space under a house.
- An insulated bushing mush be installed onto the end of the conduit to protect the cable.
- Wire and Conduit
- If you are using long lengths of conduit for the hot tub circuit wiring then you should install four separate conductors, and the type of wire will depend if the conduit will buried or not.
- Type THWN wire is a good choice because it is rated for buried conduit applications.
- Using a Junction Box for Hot Tub Wiring
- When using two types of wire or cable for a hot tub circuit a junction box may be installed in an accessible location where the wires may be spliced.
- Wire splices must be performed using corrosion inhibitor and approved wire splicing connectors.
- Permit and Inspections Are Required
- Do not take shortcuts or take chances. Electrical wiring projects such as this require a permit and inspections from your local building department.
- Your local building authority will be happy to assist you with your hot tub project.
More about Wiring Hot Tubs
Hot Tub Wiring Diagram
- Hot Tub Wiring
- Electrical Codes and Details for Spa and Hot Tub Wiring.
- Essentials for your installation, including the required GFCI ground fault protection and circuit wire size.
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
More about: Hot tub circuit
Hot Tub Circuit Requirements and Electrical Wiring
Hot Tub Circuit Ground Wire
Hot Tub Circuit Wiring
Installing a 50 AMP Hot Tub Circuit
Hot Tub Circuit Wiring Requirements
How to Install Conduit for a Hot Tub Circuit
220 Volt Hot Tub Circuit Wiring
Changing a Hot Tub Electrical Circuit
|
