The heat fan runs like a gas lawn mower. I stayed at 2 different units. Same thing. Good luck to sleep if it’s cold and you need to turn on the heat. We were tired and decided to sleep in so we told the cleaning staff (who knocks on the door around 11am) to skip and don’t clean out room. Surprisingly, the owner, who also does the room service, told me I had to let his staff in to do their work. Never seen that before.