Most wisdom is to have a dehumidifier, not a humidifier, to feel warmer in the cold. Reducing humidity also helps reduce mould. I've certainly found it to feel warmer since getting one, plus they inherently put out a little heat in the process of working.
peanutthecacti t1_j1cjl7j wrote
Reply to comment by perpetualwalnut in Old house, walls are cold by AliveConversation387
Most wisdom is to have a dehumidifier, not a humidifier, to feel warmer in the cold. Reducing humidity also helps reduce mould. I've certainly found it to feel warmer since getting one, plus they inherently put out a little heat in the process of working.