So I have a decent sized shop 32'x56' that has in floor heating, old ass boiler that's inefficient running water through the lines not glycol.
I do not use the shop for anything other than storage, I didn't want the shop but obviously it came with the property and is what it is, but for the sake of I will never use the shop I also don't want to pay for heating it, with it getting cold cold the past week the boiler pretty much runs non stop and I'm just lighting money on fire.
Talking to a plumber he said I have 3 options:
1 - Keep it heated and eat the gas costs
2 - Cut the water to the shop, cut the lines for the in floor heating and pump glycol into the lines and never use the heating again while not worrying about the glycol freezing. Looking at $800+ he guessed for glycol depending on the spacing of the lines in the slab, he wasn't sure how much it would cost until he actually did the task, so I would guess realistically $1k+
3 - Cut the water to the shop, cut the lines for the in floor heating and leave it be, let the water expand naturally and more or less hope that they don't burst in slab. Cheapest option but roll of the dice if any bursting or heaving occurs?
Anyone on here have any experience or input as to what to do in such a situation?