Daewoo is nice... $5K Btu/h with a 10.2 EER for $69. Remove and discard
the hot coil and its fan, replace with a copper pipe tube-in-tube heat
exchanger, eg a 10'x3/4" pipe inside a 9'x1" pipe, with Us in the middle
and a bored-out 1" T and reducer at each end. Pump pressurized cold water
through it and back into a hot water pipe in summertime. Pump it through
a large EZ-Set pool in the basement in wintertime.
....1/2" internal pipe fits better, with a 4x1/2"x45 degree elbow U, and
at least 5KBtu/h/(110F-60F)/8/60 = 0.2 gpm of water flow, to make 110 F
water for showers with about 1/3 the usual energy. The basement pumping
requires some valves. A solar air heater could be nicer. See
Are you humor-impaired? What's your solution? Does "portable" mean
"not through a window?"
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