[Greenbuilding] Solar Water Heater architecture

[Clarke Olsen]

    Years ago I used a 1000 gallon concrete septic tank (stone filled) 
as a heat storage unit.
    The tank was cheaper than the  plywood box we where originally 
planning, and gave us
    more than a ton of mass into the  bargain. Should be easy to 
waterproof. They come in
    two parts, but would still be difficult to get down the basement 
stairs....
    Clarke Olsen

On Aug 13, 2006, at 10:45 PM, Corwyn wrote:
> Lawrence,
>

> Here is my current plan (not done yet so take with a grain of salt).
> Large site built 500 gallon non-pressurized tank in the basement 
> (possibly wood
> lined with glass).  Thank You Kindly,
>
> Corwyn