Posted by AstickfortheMULE on August 1, 2006, 2:45 am
Why not use stainless steel flat plate heat exchaners to recover grey
water heat? Perhaps you could two or four in series, parallel or both.
Posted by Zombie Wolf on August 1, 2006, 3:29 am
Actually, stainless is not the best conductor of heat. Aluminum or copper
works much better.
Posted by AstickfortheMULE on August 1, 2006, 3:32 am
yeah, I got that figured out, but it seems that most of that flat
'plate' heat exchangers are stainless steel.
Posted by Zombie Wolf on August 1, 2006, 3:48 am
Another consideration is, just how much heat would you get back from the
grey water ? its not very hot. Check out heat pump technology. Its better
and more efficient than most people think, and it is relatively easy to
install. its a winner in most cases, and makes a really good backup system
for a solar hot water system, when the sun doesnt come out for long periods.
Posted by nicksanspam on August 1, 2006, 10:12 am
With good conductance, in thin slices. And it resists corrosion better
than copper. But a greywater plate heat exchanger might clog quickly.