New MSB Supporting Vendor — 1 Comment

  1. Looking at efficiency, solar air beats solar PV. I’ve been thinking about the window box collectors for a few months now, so I’m looking at purchasing that book!

    Another option is solar air panels to put on my south facing walls. Rough ROI calculations bring it to payoff in six or seven years and I believe that three of them will heat my entire house during the day, saving my propane.