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re: portable ac/heat
2 aug 2005
greg o wrote:
>> "dan-o" wrote in message
>>
>>>i am considering a portable ac/heating unit for my 400 sq ft shop. any
>>>recommendations on brands to consider or to not consider?
>>
>> 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
http://www.builditsolar.com.
>do you always have to go to the extreme to solve something simple?????
are you humor-impaired? what's your solution? does "portable" mean
"not through a window?"
nick
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