How do I run propane furnace but not hot water heater

Ed_Gee wrote:

bukhrn wrote:

rmauk wrote:
Newbie here. Due to freezing temps, I want to run the furnace on low but with all water drained, but not winterized yet. How do I run the furnace but not the hot water tank?

Did you drain the water heater?

He stated that in his original post....

The reason people are asking is as a newbie, he may not realize that if you open the low point drains, the hot water heater may still remain full.

To the OP:
If the hot water tank is full, you do want to turn it on so it doesn't freeze but you want to make sure you know for sure if it's full or not. Particularly on electric heat, you can burn out the heating element in seconds if the tank is empty.

This brings up another question. How long are you running the furnace and are you plugged into electricity. If not plugged in, the furnace may only be good for a night or two running off battery power (the fan runs off 12v battery power). Once the battery dies, so does the furnace, even if you have propane in the tank. If plugged in, you are good until the propane runs out.