[Greenbuilding] Geothermal a/c

[Alan Abrams]

an equally important consideration (besides the relative efficiency of one
mechanical system vs another) is whether it makes more sense to drill baby
drill and pay baby pay for geothermal, or to put a comparable effort into
air sealing and insulating, etc, and installing a smaller conventional
mechanical system accordingly.

this is not to say that there are situations where a deep energy retrofit is
too intrusive, and a gizmological (to borrow from thoughtful Ontarian
friend) solution is the better deal.  But in principle, my working
assumption is that conservation is the first task.

AA


*Alan Abrams**
Abrams Design Build LLC*
*A sustainable approach to beautiful space*

6411 Orchard Avenue Suite 102
Takoma Park, MD 20912
office  301-270-NET- ZERO (301-270-6380)
fax      301-270-1466
cell     202-437-8583
alan at abramsdesignbuild.com
www.abramsdesignbuild.com



On Fri, Jul 22, 2011 at 10:08 PM, Matt Dirksen <dirksengreen at gmail.com>wrote:

> I heard from a mechanical engineer friend that the inverter tech in
> mini-split systems is making it's way into central systems now. Carrier
> should have it's new stuff out this fall. Lennox may even already have it
> out, for all I know. He says that it's efficiency should rival the current
> ground source heat pump systems, but without the need of well digging.
>
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