EcoRenovator - View Single Post - Heat Pump Water Heater

Ron342 · 11-02-14, 06:58 AM

Great work!
I'm having trouble seeing how it thermosyphons the hot water from the water heater tank tho - like others have mentioned.
Looks like it would quickly (thats a big ac unit!) reach steady state hot water temp in your heat exchanger because of low flow of the water then the delta T would drop, pressure would go up along with current draw??? But that would only need a little pump or some rearranging the loop? I hate the pump option because it has to run under dhw pressure unless there are simple magnetic coupled pumps available cheap?

And how did you do such really nice coil winding???

11-02-14, 06:58 AM	#36
Ron342 Apprentice EcoRenovator Join Date: Feb 2010 Location: Maryland Posts: 120 Thanks: 26 Thanked 12 Times in 8 Posts	Better coils than mine! Great work! I'm having trouble seeing how it thermosyphons the hot water from the water heater tank tho - like others have mentioned. Looks like it would quickly (thats a big ac unit!) reach steady state hot water temp in your heat exchanger because of low flow of the water then the delta T would drop, pressure would go up along with current draw??? But that would only need a little pump or some rearranging the loop? I hate the pump option because it has to run under dhw pressure unless there are simple magnetic coupled pumps available cheap? And how did you do such really nice coil winding???