[RE-wrenches] Water Heater Heat Pumps

[wmdorsett]

At 14,000 btus,  It is in easy range of even a small a mini-split. While the output is dumped into a large room, usually the living/dining, its heat or cool will in reasonable time get to the rest of the house.

Bill Dorsett
Manhattan.Ks
Sent from my Verizon Wireless 4G LTE smartphone

<div>-------- Original message --------</div><div>From: Bill Hennessy <bill at berkssolar.com> </div><div>Date:05/26/2015  1:36 PM  (GMT-06:00) </div><div>To: dana at solarwork.com, RE-wrenches <re-wrenches at lists.re-wrenches.org> </div><div>Subject: Re: [RE-wrenches] Water Heater Heat Pumps </div><div>
</div>Hi folks,
I'm a little confused. Is the heat pump water heater used w radiant floor heating to also heat the house?

If so, 4338W/240v=18A.  Pretty good for dhw and house heating.
If we convert 4338W to btuh, it's about 14,000 btuh and at 1800 sqft, about  8 btuh/sqft, again a good number for a heating load.

Going to net zero carbon, a heat pump water heater in a garage or cellar might work well for a tight, well-insulated house.

regards, bill
 
Bill Hennessy
Berks Solar, LLC
371 Centennial Rd
Mertztown, PA 19539

o 610 682 4300
c 484 560 4666
NABCEP certified installer
PA contractor #44411
www.berkssolar.com

From: Dana <dana at solarwork.com>
To: 'RE-wrenches' <re-wrenches at lists.re-wrenches.org> 
Sent: Tuesday, May 26, 2015 10:53 AM
Subject: Re: [RE-wrenches] Water Heater Heat Pumps

What kind of power draw do you see on this unit? & what kind of duty cycle do you see for 2 people or 4 people?

I amp clamped a 1800 sqft house heat pump for DHW & house heat in full power and measured 4338 watts & have a rough time recommending heat pumps for off grid.

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Dana Orzel 
Great Solar Works, Inc -  NABCEP # 051112-136
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O - 970.626.5253  C - 208.721.7003
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-----Original Message-----
From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Tom Lane
Sent: Monday, May 25, 2015 3:59 PM
To: re-wrenches at lists.re-wrenches.org
Subject: [RE-wrenches] Water Heater Heat Pumps

Water heater heat pumps make excellent sense in a garage in HOT HUMID SOUTHERN CLIMATES and about 700 square feet of garage space is necessary AND you must run a condensate line like an air conditioner . DO NOT PUT THEM IN CLOSETS AND OR SMALL LAUNDRY ROOMS UNLESS YOU CAN VENT 700 square feet of unconditioned air space to them . They are noisy , but a garage in a humid hot southern climate is a good choice and with a time clock set for 11:00 AM to 4: 00 PM when the air in the garage is hot AND solar grid tied system is operating is a great strategy . GatorTom

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