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Author Topic: water / water heatpump - diy...  (Read 1777 times)
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« on: January 04, 2008, 10:32:19 PM »

Correct me if im wrong:-

water pump, with water inlet from my water wheel launder, filtered. this outputs (say) 28mm pipe to a coil. end of coil is 15mm pipe, returning water to launder.

water around coil gets heated up (like a water tank in a standard domestic system)

Thermostat on tank set at, say, 40 degrees causes a 'short circuit' of the 28mm pipe round the pump (cant turn pump off, as its driven by an 8 ton water wheel... Smiley )

Use water from tank to heat 80sqm of underfloor heating.

Now - what size pump do I need? Im guessing 2kw...

Next - can I just use my old HWC - which was decomissioned for being too small to do the whole house - as a basic proof-of-concept heat exchanger?

Pic of wheel on day 1
7.2kW Waterwheel and 9.8kW PV
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