Quote:
Originally Posted by Servicetech
Give me the COP specs for the unit you are considering.
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Well, since you did say, "No way a heat pump water heater will ever pay for itself when compared to gas", I'm, guessing that you have run the numbers already. I mean that level of certainty doesn't come from nowhere... right?
Just in case you haven't run the numbers, how about a Geyser PRO-125. I picked that one because it has a published COP curve, which should give you enough information for your analysis.
...and
HERE is a list of pages that Google thinks have pricing information for a new Geyser PRO-125.
Additionally,
HERE is a table of national natural gas prices, so that you can pick various scenarios. By the way, this link updates itself, so the information will continue to remain valid.
Certainly can't neglect electricity use, so
HERE is a table of national electricity rates. As in the paragraph above, the link updates itself, so the information will continue to remain valid.
Lastly
HERE is a collection of regional climate maps that you can use to plug in values to the COP tables.
I'm looking forward to your findings.
Best,
-AC_Hacker