[Greenbuilding] [proprietary product name <snipped>] (was HEAT PUMP WATER HEATER)

[Corwyn]

On 10/16/2012 10:49 AM, RT wrote:

> ie If sucking the heat out of the living space is problematic,

and it is.
> then
> maybe you park it in a small space that is thermally isolated from the
> living space where the heat-sucking capacity is beneficial ... and that
> sounds pretty much like a fridge.
>
> I'll leave it to a numbernerd (meant in the nicest way of course) to do
> the arithmetic to determine whether the "fridge" is a beer cooler
> capacity-sized space or a root cellar capacity-sized space.

If your hot water needs are 15 kBTUs per person, and your root cellar is 
actually insulated, you are talking about a pretty large space.  That 
same 15 kBTUs are being pulled from your basement and made up for by 
your furnace, if the unit sits there.

But, of course, putting a heat pump in a cold root cellar reduces the 
efficiency of the heat pump.  And now you need to control for two 
temperatures.

TANSTAAFL.

Thank You Kindly,

Corwyn


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Topher Belknap
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