HOUSTON (KTRK) -- If it has been a while since you last had your air conditioning serviced, you might have noticed that the bill is a lot higher than in years past. Since 2010, the EPA has been ...
Most air conditioners use one of two types of refrigerant: R-22 or R-410A. I've never paid any attention to this detail while inspecting houses because it didn't make much difference, but that's all ...
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