I need to fuckin rant!

Quite
Okay so me and my boyfriend live with his mother at the moment, only bc she really likes us staying there & help with her rent. No biggie. I have ZERO problems with her, she's real laid back. His brother, who's 18 stays here too...
The problem I'm having is his brother constantly thinks he "runs" everything in this house. For example; always has the heat off, constantly ask his brother(my bf) for money, & when he says no, he starts cussing him out, always talks shit about about me and his brothers relationship, seems like he's jealous or something? stays having his friends over, and eats all the food, "which I pay for" plus, never cleans a fucking thing! and also acts like a complete dick head to me. 
What I'm really ranting about is it's literally FREEZING in this house! I always have to fucking turn the heat on, and what happens 15 mins later? It's OFF. He wears a jacket and hoodie all day and sweats and says "it's to hot" 😐😒 Like this kid doesn't pay any type of bills, doesn't work, drop out of school, and just sits home. If IM PAYING FOR THE HEAT, WHY IN THE FUCK DO YOU KEEP TURNING IT OFF? Which his mom complains just as much as me bc she barely gets any heat in her room.
The problem is, I've said shit to my boyfriend and his mom and they literally don't do anything bc they don't wanna argue with him! It's like they're scared. I've bitched so many times, and all my boyfriend says is "just deal with it or keep turning it on". 
This might be petty to rant about but idc. I'm so tired of dealing with his brother. We're moving out this summer, THANK GOD. But it's like why tf should I have to deal with this when I pay bills and you don't? He's the most arragant fuck I've ever met, he needs a damn reality check on life!