How to Wire a Baseboard Heater with a Single Pole Thermostat

Last Updated on January 30, 2022 by Vernon Scott

Single pole thermostats are frequently used together with electric baseboard heaters. Such thermostats function as a switch, cutting the power to the thermostat and the heater.

This implies that the electrical heater’s electricity is always on, but the circuit can’t be closed, therefore the heater doesn’t work. Because only just a few cables are utilized and only very few tools are required, wiring a single pole thermostat is relatively simple.

Things Needed:

  • Line Voltage thermostat with a single pole
  • Measurement tape
  • Wires
  • Electrical box
  • Wire nuts
  • Saw for drywall
  • Screwdriver
  • Electrical fittings
  • Mud for drywall
  • Paint
  • Hammer
  • Sandpaper

Steps to follow:

Step 1

Cut off the relevant circuit breaker in the circuit breaker panel to turn off the electricity to the electric heater. With a volt meter, check for electricity at the electric heater to confirm it is turned off.

Step 2

Setup an electrical box 5 feet off the ground where the thermostat will be installed. To correctly set up the electrical box and connections, you might have to breach drywall in between the electric heater and the thermostat.

Step 3

Connect the electrical box to the electric heater via wiring. Two conductor wires should be used: one neutral wire, one hot wire, and a ground. Study the electrical heater’s installation guide to discover what gauge wire you’ll have to attach. The amperage draw of the heater determines the wire gauge.

Step 4

At the electrical box, detach the thermostat covering and attach the wires. The black wire from the heater will be connected to the red wire from the thermostat. The black wire of the thermostat will be connected to the electric heater’s white or red wire.

Wiring nuts should be used to make these links. The electric heater’s ground (green) cable will be connected to the electrical box’s ground screw.

Step 5

Attach the thermostat to the electrical box and close the lid.

Step 6

Make the necessary electrical contacts at the heater, which will differ based on the product. Observe the circuit diagram in the setup instructions.

Step  7

Crank the heater circuit back on and turn the thermostat clockwise all the way to check if the heater comes on. If it does, try turning the thermostat anti-clockwise all the way to see if it shuts off. If it does, the thermostat and heater are both in good working order.

Step 8

Do a drywall restoration. As required, use sand, texture, mud, and paint.

Final Note

Make sure you check out the guide provided by the heater’s manufacturer to stay away from any kind of issues. Using the right wiring and connections makes this process quite easy. This is a very simple installation but if you do not have any experience at all handling electrical tools, we recommend taking help from a professional.

I am a Trained HVAC Technician and Author of EmiNick. I have been in the industry for over 10 years and have gained a wealth of knowledge and experience. I have been involved in all aspects of HVAC, from design and installation to repair and maintenance. I am also a certified energy auditor and have experience in conducting energy audits for both residential and commercial customers. In addition to my HVAC experience, I am also a certified home inspector and have conducted many home inspections for both buyers and sellers. Follow Me: Linkedin

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