RE: In floor radiant heating - can't beat it.
From: Elana Kann (
Date: Wed, 16 Nov 2005 05:45:13 -0800 (PST)
What we have at Westwood (where we have radiant floor heat throughout with a
central solar water-heating & distribution system and very tight building
envelopes) is Swedish vents in the exterior walls (one on each level) and
very quiet Panasonic fans in the bathrooms. In the winter when we close
windows, each house keeps a bathroom fan going and a Swedish vent open for
adequate fresh air intake. Works great.
--Elana Kann, Westwood

-----Original Message-----
From: Chris ScottHanson [mailto:chris [at]] 
Sent: Wednesday, November 16, 2005 7:40 AM
To: Cohousing-L
Subject: Re: [C-L]_ In floor radiant heating - can't beat it.


Air to air (JP Cohousing) and air to water (Winslow Cohousing) heat  
exchangers are quite efficient these days, and should, in my opinion  
being running full time in the back ground.

Do be careful not to create an accidental acoustic connection between  
the bathrooms with common venting.  Made that mistake once...  It can  
get embarrassing.


On Nov 15, 2005, at 9:53 PM, Norm wrote:

> Chris:
>    Forced-air systems are often designed with HRV or ERV heat  
> exchangers so that fresh air entering the building can be heated by  
> hot stale air exiting the building.  How do systems using radiant  
> heat introduce fresh air into the house and get rid of stale air?   
> So far, I have heard about heating, but not about ventilation nor  
> cooling.

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