John Mullan wrote: > I've seen that before. Excellent idea. I wonder how much all that > copper, insulation, etc. would cost (for purpose of payback period)?
When calculating the 'payback period' be sure to deduct (or add) the cost of a couple of medium term power outages, as folks all across the mid-west have seen over the last few winters. And yes, for the record, I am not a big fan of 'payback costs' when it comes to passive vs utility consumption. When the power goes out, passive systems continue to work. _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (70,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
