[Greenbuilding] [BULK] Re: Solar pre-heat system

[Keith Winston]

A loose idea can be had by considering surface area, but I'd probably 
downgrade it by 50% or more, since it's not a flat membrane... there are 
also tables and software for such things!

Keith


Lawrence Lile wrote:
> Kieth, 
>
> Didn't I also remember you having a way of calculating how much heat
> transfer you could get out of a coil of copper pipe submerged in a tank
> of heated water?  
>
> The idea being, of course, to preheat water through a warmed solar tank
> before it hits my domestic water heater.  
>
> Of course you can just go out and buy all this stuff, but that takes all
> the fun out of it.  
>
> Lawrence Lile
>
> -----Original Message-----
> From: greenbuilding-bounces at listserv.repp.org
> [mailto:greenbuilding-bounces at listserv.repp.org] On Behalf Of Keith
> Winston
>
>
>