Cant you keep the space above freezing? Just not as warm as people would prefer
a house i occasionally looked after suffered some pipe damage because somebody else thought setting the thermostat to 50F would suffice to keep the pipes from freezing in the depths of winter.
they were not right enough.
> If you let the house drop to 60-55 F - there's no guarantee that the colder parts of your walls and pipes freeze.
That sounds like pretty high variation? ~25-30 deg F?
You only have to freeze your pipes once...
Holy cow - you have to heat the entire house to warm the exterior walls enough - in winter! - that the pipes don't freeze. Ouch.
That seems like it negates any potential savings.