[GBlist] Healthy Ducting

[Barbara Linn <barblinn@uswest.net>]

I am working on a new house in northern California.  The summers are hot
and the owner is insisting on air conditioning.  I had originally
planned on passive cooling, radiant floor heating in the slab.  I also
wanted to use instant hot water in the master bathroom for shower and
tub needs.

They would like to have a ducted system which provides heating and
cooling.
I am concerned about air quality and energy conservation.
The house is large much to my dismay, so it probably needs multiple a/c
units if we
went the standard a/c.

Anyone had luck with swamp cooling in Northern Cal?

Suggestions are welcome!!

Barbara
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