[GSBN] ground source heat pumps

[jfstraube]

Check out
BSD-113 on
buildingscience.com

There is a lit of hype and myths.

It is expensive. I am increasingly finding it is less expensive for PV  
powered homes to use an efficient air source heat pump in efficient  
small houses, even in relatively cold climates.

On 18-Mar-09, at 1:16 PM, BuildersWithoutBorders wrote:

> Dear colleagues -
>
> Can someone shed some light on so-called geothermal heating systems,  
> and their cost-effectiveness for a typical home?
>
> I imagine the pay-back in energy saved has something to do with how  
> many heating degree days in a specific climate.  But then, I  
> understand they can also be reversed for cooling.
>
> This seems like an expensive technology that is dependent on  
> electrical service... can it be powered by solar/
>
> Thanks for any insight offered.
>
>
> Sincerely,
> Catherine Wanek
> Co-director
> Builders Without Borders
> <mail at builderswithoutborders.org>
> www.builderswithoutborders.org
> 575-895-5400
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