The AC removes moisture from the air. I'd choose C, none of
I'd suggest to turn off the dehum. Cause the dehum pumps
heat into the house. It's equivilant to leaving a 750 watt
filament heater running.
Use the AC to cool the house and dry it out. That way, your
electricity is both cooling and drying. At least you won't
be paying for the dehum to pump out heat, and then the AC to
move the heat. The AC will have a lower electric draw when
it's cold out, cause the compressor won't be working as
At my place, I try to run the AC as little as possible
during the day when it's hot. And then turn the AC on in the
evening when it's cooling down, outside. Have the AC
professionaly serviced and the outdoor unit washed out with
chemicals and a garden hose. Will restore the efficiency
lost to dirt and crud.
Christopher A. Young
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