[Greenbuilding] new solar heating system in this country

[RT]

On Wed, 14 Mar 2012 21:15:40 -0400, Clarke Olsen <colsen at fairpoint.net>  
wrote:

> I intend to drain-back into a 1,000 gal tank, skipping the heat  
> exchanger.
> The concrete tank is enclosed in 10"+ of foam, in the hope of year-round  
> storage.
>    Question: What could I use to suppress possible organisms from  
> growing in that hot, dark soup? Vinegar? Clorox?


Just daydreaming but I wonder what would happen if the concrete tank were  
replaced with a huge oak barrel and some grain and yeast were added to the  
water ? (ie 100-proof whiskey wouldn't freeze. Right  ? )



-- 
=== * ===
Rob Tom
Kanata, Ontario, Canada

< A r c h i L o g i c  at  Y a h o o  dot  c a  >
(manually winnow the chaff from my edress if you hit "reply")