Ok I live in Michigan and it is cold here in the winter. Anyways I have my 4 racks in my basement. The way my basement is laid out is a 10X10 utility closet slash storage and the then the rest of the basement (about 500sqft) is in an L shape. so I have my racks towards the middle of the basement. I cant seem to get my basement above 72 with out take a huge hit on my utility bill. So here is my question I am currently also running a radiator style space heater down there trying to help the heat situation but it gets it to the above 72 which obviously isnt good. I want to set up a temporary smaller "room" to close off the area from the rest of the basement and use the radiator to heat the smaller space more efficiently and so the radiator doesn't have to stay on full boar all the time. Obviously money to build a real room is out of the question so I am thinking like using blankets for temporary perimeter walls or maybe thick roll out sheet plastic and duct tape, the summer months the temps are fine, but the winter i need something that will hold in the heat preferably reusable yearly. What are your thoughts? Cant be permanent for too reason it will hinder the functionality of the rest of the basement and I rent so the landlord wont approve of any permanent structure. Also our income has become limited so the solution should be as economical as possible.