[Greenbuilding] Manual J calculations and Geothermal heat pumps (Stephen)

[Paul Newby]

I ran into this piece questioning the economics of radiant floor
heating in a well-insulated home -

http://www.oregon.gov/ENERGY/CONS/RES/tax/Radiant.shtml

Seems like a fairly balanced article and it makes some interesting
points - it does seem to be overkill to put an expensive heating
system into a superinsulated structure, and many of the major
advantages (such as zone heating) may not amount to much in such
cases.

Paul N.