Turn excess attic heat into hotwater

Step 7 Go Around it in the cold

I can open an irrigation valve and bypass the water around the box if it ever gets colder than the well water here. I'll use a sensor in the box to open the valve, otherwise it is shut by default.

Comments

[EmmettO]

While it's shut off in the cold the lines could freeze and pop. I know I've had plenty of burst lines because of the cold in the winter but thats usually in the basement. Maybe the attic would stay warmer while the house was heated but if you lost power and the house went unheated say, while you were away on vacation things could get ugly.