----- Original Message ----- 
From: "Jeff Barfett" <[email protected]>
> Definitely look into a Airhead composting toilet- have one and swear by 
> it.


A question about composting toilets.   Given that the composting bacterial 
activity requires heat to be functional does a composting toilet in freezing 
temperatures require  some  sort of  heating method  to maintain the 
bacterial activity essential to  decomposition.

Placing a composter against the outer hull  would effectively  allow  the 
exterior cold to get closer to the toilet and the dead air space between it 
and the  hull.
I know that a cottage located composting toilet did not function  in winter 
colds and  -20F temperatures.  Although  it was equipped with solar panels 
for ventilation fan and composting heater,  it did not work  from December 
to  March.

What  if anything do the manufacturer recommend  regarding  how much heat to 
provide.  I do know that  when I lived aboard in Toronto I had 1/4" ice on 
the insides of  my port holes and  my storage cupboards had to be left open 
or else risk freezing the food content.
Gives an entirely  new meaning  to 'chipped beef in a can'  for a quick 
winter time meal.

Arild
who stil remembes chipping  frozen soup out of a can. 

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