Residential air-air vent heat exchanger source? [RE-wrenches]

[Bill Loesch, Saint Louis Solar]

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Hi Steve,

Would 5 panes of glass qualify as a zealot?

You might be interested in one technique one of the HRV installers was
using in his own home -

He replaced the vent fans scattered over the house with ductwork as the
input to the HRV. 

Benefits
1   No building shell penetration_s_ (leaks)
2   Very very quiet exhaust ( the fan is far removed from the bath(s) and
kitchen.

Disadvantages
1  Added ductwork
2  Increased duct size (He was using six  and eight inch diameter ducts.)

One more idea to keep you healthy, wealthy and warm.

Bill Loesch, Solar 1 - Saint Louis Solar


RE-wrenches said:
> A customer I once had lived in a ranch house with many layered windows,
sealed so tight cit was
>hard to open the front door for the suction. Some 5 or more layers in each
window. Our largest
>early PV pioneer system in Zilla Washington about 1982. 

>He also had an air to air heat exchanger for whole house venting that
captured most of the exiting
>heat and pre-warmed the incoming air.  A lot of zig-zag sheet metal in a
small package.  Searching
>for such a product now, all I see in heat exchangers are water to water
and water to air.  Is there
>anything still made that captures heat in a building to outdoor air
exchange system?  Steve Willey,
>Backwoods Solar, retired swilley at pwi.net phone (208) 263-4788 

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