[Greenbuilding] Manual J calculations and Geothermal heat pumps

[Jesse Klinkhamer]

Dear Stephen,

>From our experience Essential Innovations has exellent equipment and
service. You can click through using this link.
http://www.kleanindustries.com/s/Geothermal.asp 
 
-----Original Message-----
From: greenbuilding-bounces at listserv.repp.org
[mailto:greenbuilding-bounces at listserv.repp.org] On Behalf Of Stephen
Sent: July 4, 2006 9:54 AM
To: greenbuilding at listserv.repp.org
Subject: [Greenbuilding] Manual J calculations and Geothermal heat pumps

I am starting a house that will have geothermal heat pumps for heating and
cooling. 

I am getting some conflicting feedback on sizing from two different subs. I
would like to do Manual J calculations to test the numbers. Does anyone know
of software available as a demo (or free) that will allow me to do this? I
know I can purchase the software for $300 or more, but this will be a one
time affair and do not want to pay for that. The demos I have seen will let
you do 3 rooms or will not permit printing or saving - not terribly useful.

One of the subs is proposing Hydron Module as the manufacturer of the heat
pumps. Anyone out there with experience with this brand - good or bad?

TIA

Stephen Levine

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