Adding a Gas Heater to a Hot Tub

How to Control Additional Equipment for Your Hot Tub – When you are integrating new components into an existing hot tub then the controls must integrate together as well so they work together and the controlling sequence of operations will give you the control you desire

Additional Equipment for Your Hot Tub
I bought a natural gas spa-pool heater 15000 BTU 120 volt.

My spa thermostat goes from 80 to 104 degrees and the pump runs when it calls for heat on the tub. Do you have any ideas about how to hook up the gas heater?
I would also like to get the temperature lower than 80 degrees when the hot tub is not in use.

This electrical question came from: Rod, a Handyman from Comstock park , Michigan.
See more about Home Wiring for Michigan

Dave’s Reply:
Thanks for your electrical question Rod.

How to Control Additional Equipment for Your Hot Tub

Wiring Additional Control Equipment for a Hot Tub

Rod, when you are integrating new components into an existing hot tub then the controls must integrate together as well so they work together and the controlling sequence of operations will give you the control you desire, otherwise you could create a problem.
What I recommend is to find a control unit that is compatible with all of these features and items that you are adding.
There are systems like this available and the better ones will have built in features to give you the control you are asking about.
You may even find that your existing hot tub control unit has built in auxiliary functions and control options for the additional gas heater as well.

The Following will assist you with your hot tub wiring:

For more information about Hot Tub Wiring
Hot Tub Wiring

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.

This link is helpful as a Handyman
Do-It-Yourself Electrical

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Wire It Right with the help of my Illustrated Wiring Book
Great for any Home Wiring Project.

Complete Guide to Home Electrical Wiring

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Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

More articles about Gas Spa-Pool Heater and Home Electrical Wiring:
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Home Electrical Wiring and Electrical Repairs

Please Note:
Unless otherwise posted, please refer to the following Guidelines when working on Electrical Projects:

Skill Level:
Intermediate to Advanced - Electrical Repairs and Circuit Wiring is Best Performed by a Certified Electrician or Licensed Electrical Contractor.

Electrical Tools Required:
Basic Electricians Pouch of Hand Tools, a Voltage Tester and a Multi Meter.

Estimated Time:
Depends on personal level experience, ability to work with tools, work with electrical wiring, and the available access to the project area.

Precaution:
Identify the project circuit, turn it OFF and Tag it with a Note before working with the wiring.

Important:
Modifying existing electrical circuits or installing additional electrical wiring should be done according to local and National Electrical Codes, with a permit and be inspected.