i had no heat for the past month and its been around 30 degrees daily
topped off radiator
i mentioned my problem to my grandad and he said to take it to the car wash and flush the heater core...
i flushed it and chunks came out
cost me a whole dollar and now i've got so much heat i gotta take my jacket off when i drive more than 10 min
just thought i'd mention this helpful hint to anyone having similar problems