Name:   twc - Subject:   Whole House dehumidifiers Date:   11/10/2015 11:21:18 AM

Can't speak for the whole house ones. But the small ones add a bunch to the power bill. You're basically running a 110volt window air conditioner and those are not very efficient. But they work great. I had 2. My house is an A frame so not a lot of good insulation. This time of year I would have to run both and I could really tell it on the power bill. 

Sadly, both of mine quit and I haven't replaced them yet. Need to, especially now. 

Peace,

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TC