My garage is FREEZING COLD!! what can I do?? Will chose best answer?

I can get you a propane heater VERY VERY cheap and it does the job I have used it before but I can get ou a brand new one cheap cheap and I just realized this is not my account my wife has one to and this is hers haha anyways email me TheTaylors122@yahoo.com and I will talk to you more onthere