[RE-wrenches] efficiency

[William Dorsett]

Heat pump water heaters are fine during the summer when you need to exhaust
heat from your indoor space, but in winter you need to provide heat from
other sources to replace the heat sapped by the heat pump. So payout will
depend on your client's location heating and cooling degree days.

Bill Dorsett
SunwrightS

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of jay peltz
Sent: Saturday, July 14, 2012 6:34 PM
To: RE-wrenches
Subject: [RE-wrenches] efficiency

Hi All,

I've got a client who is thinking of getting a heat pump hot water heater.
Wanted me to confirm that it would save him kwh per year over a standard
tank unit.
Yes it will, or so all the numbers say for his area etc.

But I cannot figure out ( or find out) how to compare the energy factor 2.2
in full heat pump mode vs the .91 in electric element mode?

Anybody know how to do this?

thanks,

jay

peltz power
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