Is fiberglass heating/cooling duct board safe? [more inside]
posted on Apr 9, 2008 - 2 answers

BrrrrrFilter: It's gotten cold here in Chicago and my heater appears to be broken. Google didn't help me much probably because my knowledge of HVAC is weak. Help me find out quickly if I'm being ripped off? [more inside]
posted on Oct 13, 2006 - 15 answers

Our air conditioner is going out and has to be replaced. We are likely going to replace it with two standard units as the single unit has never heated or cooled the entire house evenly. The heating/air guy said that would be ideal but would cost 8-10 thousand vs 4 thousand or less if we just bought a new 5 ton unit. However the electric company is offering to loan people the money if they want to buy heat pumps. Not having a lot of extra money right now, that is tempting IF heat pumps are likely to do the job, which I am not sure about. [more inside]
posted on Jul 26, 2005 - 10 answers

Why are radiators (the things connected to your hot water system that heat a room) usually painted white, when white is the worst colour for heat radiation?
posted on Dec 13, 2004 - 19 answers