We have buildings like that in a few of our parks, and beach areas, but we don't use them in the winter.
Do yours have high ceilings? If they do, all the heat is up there.
We rarely get long-term below-freezing temperatures here, so the foundations freezing isn’t a real issue.
It doesn't really freeze, per se, but it radiates the cold, competing against the heat we are trying to supply.
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You are used to crowds, right?.....
If the next ice age comes along this year, can we bunk with you and Der Prinze for a while?
There are only 4 (or 5) of us.
Yes, very high ceilings. However, the ones with working furnaces are comfortable enough, even in below-freezing weather. They’re not very big: about the square footage of my kitchen and dining room.
Sure, if you need a place to escape the glaciers, you’ll be welcome here. Bring your cool outdoor grill!