Heat-recovery tech for drains hits Home Depot

[ponyboy]

Nice but....$$$

http://tyler.blogware.com/blog/_archives/2007/10/19/3302080.html

[hemlock77]

Or you could fabricate yourself for much less. I have also been pondering running water supply going to hot water heater through stone backer behind wood stove.

[rreidnauer]

Yup, I planned on utilizing a similar system by http://gfxtechnology.com/ At first, I was simply going to fabricate my own, until I priced out the raw copper pipe and tubing, and I couldn't do it for less. (unless I get lucky at one of those surplus sales)

[ponyboy]

Need one of these for the fireplace chimney. :-)