I swear, it seems like my tanks' UTHs are heating our house. It is pretty chilly out today, and I have been in/out all day doing work/cleaning (yeah, that's how I spend my days off.) Anyhow, it seems oddly warm in the house, warmer than it should be without any heat on; I wonder if the heat's being retained from our undertank heaters? Some are the stick-on ones, others are flexwatt; is this possible?!
Last fall, we only had 4 going; now the number is 6.. and the non-stick-on ones are larger; I really wonder if they are contributing? Not to mention, this is an ancient (well, old) drafty farmhouse; I haven't been cooking or anything.. it should not be this toasty in here. I wonder..?