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3kw heater for Intex/Bestway 10ft pool
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Ian Stirling
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wrote:
Ian Stirling wrote:
wrote:
Or the OP could buy ?90 worth of hosepipe, polythene & pump, and get
10kW with 1/10th the run cost of the 3kW heater.
Not a tough choice. Cheap pool solar heating is very easy to make btw,
probably easier than installing electric into the water.
Details?
10m^2 collector area, how does it work?
Polythene over hosepipe?
ok... firstly I would not use an open roof surface for collection, as
a) it will also collect bird**** and other assorted bacteria
b) it will leak water onto the roof structure underneath the covering
and rot it.
Buy a ?50 pump, checking it can run continuously and has a type of
motor that can be slowed down eaily.
Spend the rest of the money on hosepipe, the more the better. Avoid
orange, white or light grey. Wind it in a huge flat spiral pancake.
You'll get a lot more heat if you space each turn out by one pipe
width, but that requires wire or similar to hold it togther/apart. Aim
for 10 square metres or more.
Cover the pipe with polythene, add the pump on an RCD, and run it at
lowest speed setting.
You now have a fairly efficient low cost 10kW heater.
Hmm.
10m^2/4cm = 250m.
Best price for 30m I can find seems to be about 12 quid.
Call it a hundred quids worth of hose.
Without the space, it's more like 250 quid.
I've wondered in the past about twinwall sheet.
If only there was a nice leak-proof way to seal hose to the ends, it'd be
ideal.
One sheet of clear twinwall on top of one sheet of black.
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