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Thread: de-humidifying and heating
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29-07-2010, 01:32 PM #1
de-humidifying and heating
Had a chat yesterday with a customer. we got round to domestic heating (for some strage reason) He said thay he'd been told that by having a dehum running during winter this would cut his fuel bills. The reasoning was that dry air is easier to heat than moist. I suggested the running of the dehum would counter the savings but he was told no over all it is cheaper overall to use both
I told him his main problem was that he had a huge house and no loft insulation, cavity wall insualtion or double glazing and to get that sorted first
Still that aside any thoughts and proof either way would be welcome
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29-07-2010, 01:55 PM #2
Re: de-humidifying and heating
From 12°C 90% to 24°C 42% (sensible heating only), the difference in enthalpy is 12 kJ/Kg.
From 12°C 30% to 24°C 15% (sensible heating only), the difference in enthalpy is the same.
Therefore there is no difference whether you heat moist or dry air.