The opposite to a radiator in this form would be a similar device mounted
close to the ceiling with something substantially colder pumped through it
(say a liquid with a low freezing point kept at -20C). Then convection
would do the opposite of what the radiator does in that the cool would
"fall" as opposed to the heat "rising". Problem is, the moisture in the air
would just ice up the metal and make a mess!! If you had a low (1C for
example) water based system, it would just condensate all over the place so
that's not a goer either!
Some old "air conditioning" systems do just use cold water pipes and a fan
to blow air over them, thus slightly cooling the air which is accelerated
around the room by the fan. A bit too subtle for my liking though! The
fact is, hot objects near floor level put high energy into the cold air
around them and send it with gusto up to the roof - this heats a room very
effectively if the volume of air is not too great. A cold system would be
too subtle without pumping the hot air past a refrigerant and blowing it out
aggressively through the room.
Trust me, the forced convection of an air conditioner will serve you better
I wonder, if you compress air it can remove the moisture from it
substantially - it that were passed to a cooler, then it might clean
up the act quite a bit - running low diameter (even braided) air hose
around the house is not such a nightmare as other utilities ducts,
tubes or cables can be. You could then site a cooler locally in any
room you felt you wanted one, like with a fan heater for example. Only
one compressor and a tank to deal with on a "sound issue" basis too.
Given it's under pressure then the need for a fan is somewhat reduced
too. The requirement for an "efficient" compressor would be prime
though. Maybe you could cool the air before distributing it round the
house, but this would make the pipe requirement a good bit dearer I'd
I don't want to win the lottery I just want to win a barn full of seasoned
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