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To: Freeport

Heat pump type water heaters fail miserably in real life use; it might be a function of the number of duty cycles but I think they’re just too complex for something that needs to be 100% reliable ,It shouldn’t matter if it’s a heat pump pulling heat from air like your A/C or it’s a water to water system as this guy wants to build.

I’ve had 2 tankless electric heaters fail over a 5 year period BIG 3*60 AMP ones ,, with 3 chambers theres a lot of possible failure points and don’t try to reason with the wife when she has to take a cold shower...

What works in any climate is/are GAS tankless water heaters ... my Aunts home in Brooklyn still has their original tankless water heater from 1926 ,, just updated to eliminate the pilot light... amazingly simple , just a copper coil about 6” in diameter and 2 feet in length(THICK COPPER) inside a tube that narrows to become the chimney/exhaust.

The 1970’s/1980’s solution was to capture waste heat from the A/C pressure/liquid side with a sealed heat exchanger box... WORKED GREAT and improved A/C efficiency also... don’t know why it has fallen out of favor.

Best solution now in warm climates is passive solar heat with electric backup.


21 posted on 04/05/2013 11:30:21 AM PDT by Neidermeyer (I used to be disgusted , now I try to be amused.)
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To: Neidermeyer

>> “Best solution now in warm climates is passive solar heat with electric backup.” <<

.
Warm climates, with soft water only!

Put it in a cold climate with hard water and the freeze valves will fail within a year. Warm climate with hard water, about two years.


39 posted on 04/05/2013 2:21:19 PM PDT by editor-surveyor (Freepers: Not as smart as I'd hoped they'd be)
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