[Greenbuilding] [BULK] Composting toilets

[Norbert Senf]

At 09:34 PM 12/19/2006 -0800, Reuben Deumling wrote:
>(snip)
>
>I'm also specifically curious how much of an 
>issue smell is with your composting toilets--of 
>any variety? I get the idea that with a well 
>designed stack and a tight fitting lid/seat it 
>is fairly easy to reduce this to a minor inconvenience. (snip)

We have a powered vent on ours, and a gasketed 
lid. The toilet is under negative pressure, so 
there is no smell at all, less than from a regular toilet.

We probably pay a small energy penalty for 
running a fan all the time, especially during 
very cold weather. We're actually considering 
hooking up a heat recovery ventilator to the 
stack, which would have the additional benefit of 
increasing the air changes in the house. I saw 
this done on a job on an off grid house north of 
Toronto, designed by Allen-Kani Associates:
http://heatkit.com/graphics/clients/c-ketc10.gif

Norbert

-------------------------------------------
Norbert Senf---------- mheat(at)heatkit.com
Masonry Stove Builders
25 Brouse Rd.
RR 5, Shawville------- www.heatkit.com
Québec J0X 2Y0-------- fax:-----819.647.6082
---------------------- voice:---819.647.5092