How do you deal with annoying family?

First of all I love my grandpa after all he took me in after some complicated stuff. But whenever it starts getting hot like this he still refuses to put on the AC. I'm usually just sweating like crazy even with a fan and literally wearing nothing. I've asked him to put on the AC and might even get a summer job just to pay off the AC lol but I don't know I still love him of course
How do you deal with annoying family?
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