Install the Outlet and Plug
Shut off the breaker to your furnace.
Cut the wiring and install the outlet to the wiring coming from the breaker panel. Get as close as you can to your furnace. If you are lucky, there will already be a switch there, and you will not need to buy the additional hardware. If you are really lucky, there will already be a plug there.
Install the plug on the furnace side of the wiring.
Plug the furnace in and reset the breaker. Check that the furnace runs properly.
Connect to Your Generator
Place your generator in a safe location outside of the house, with safety considerations like children playing, heat, water and exhaust. Do not put it where it can be flooded or will be in a pool of water. Remember, the exhaust pipe can cause burns.
Run your extension cord from your gas furnace to your generator using an outdoor extension cord.
Plug the extension cord into the outlet on your portable generator. Disconnect the plug from your furnace and plug it into the extension cord.
Start your generator and bring it up to speed. Turn on the output switch on your generator.
Things You Will Need
- Wall socket and associated hardware
- Electrical plug
- Outdoor extension cord
- Don't wait for the power outage to install your outlet and plug. It will be harder to do with no lights. Do it when you buy your generator or even before.
- Remember that while your generator is running, you can use it to power other appliances. Just make sure not to overload its capacity.