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29-06-2010, 02:59 PM #1
Cost of Removing Extra Heat in Summer
> + say you have a house
> + it has a normal AC
> + it;s 90 degrees outside
> + normal roof, insulation etc
> + say the house is 2400 sq feet, it has a 4 ton central
> air
> + inside temp is set at 75F
> + normal sunshine
> +
> + here is the question:
> + how much extra AC cost is it if you add a 100 watt heat
> source in
> + the house?
> +
> + state other conditions or assumptions to reach the answer
yes i know there are a lot of variables
just a ball park answer
maybe just something like
"if the AC is SEER 15, it is 50% efficient, so it will cost 200 watts to get 100 watts of heat out"
thx
wle
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