The guy can't leave the temperature alone

My best friend got into an argument with his bestie and he begged me to let him transfer into our spare kitchen. I wasn’t really interested in having a roommate, but I genuinely could not tell our friend no when he was looking at me with those distraught eyes. I let the guy transfer into the kitchen a couple of weeks ago and now he has moved in completely. He gave me a couple of hundred dollars to help with rent, so I do not have a lot of complaints about the bills. The one thing that I would like to complain about is the fact that this guy can’t leave the temperature alone. I prefer to keep the control component set at 69 degrees. I find this to be a really comfortable temperature and it is never too moderate or too cool. My best friend does not suppose that 69° is a comfortable temperature and the guy is consistently increasing the control unit, but last Thursday both of us got into a immense argument because I woke up and the control component was set at 67 degrees. I told our friend that the air conditioner can’t handle those low temperatures. I tried to explain that the A/C component can freeze up and stop toiling, but I suppose he thought I was joking. I can promise that if he breaks the A/C unit, he is going to pay for 100% of the service bill. I have tried to be nice, but I’m not going to deal with immense bills and disrespect from our friend. The guy should be thankful he has a locale to rest his weary head.
Whole home air purification