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Old 08-08-18, 03:24 PM   #2
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How about if you get a small heat pump for the central air, to only slightly dehumidify and/or cool the whole house, then use the window unit when needed (=less often)? Make it low power with a large heat exchanger, to boost efficiency.
The"central" HP would also help with heating in the winter.
Ecorenovation - the bottomless piggy bank that tries to tame the energy hog.
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