Tag Archives: High Efficiency Boilers

PVThermal

Posted on March 27, 2010 by Mike Holm

PVThermal panels are not new.  There has been a lot of research done on them in Europe and the US since the 1970s, but they have been a niche market. Now is the time for the system to gain some prominence. … Continue reading →

Posted in Solar panels | Tagged , , , , | 2 Comments

Solar water heater economics

Posted on June 10, 2009 by Mike Holm

I have about 20 years in the solar business as well as installing high efficiency boilers and floor heating. In the 90s when there was cheap gas and oil, most people who were in the solar business were true believers, … Continue reading →

Posted in Efficiency and Economics | Tagged , , , , , , , , , , , , , | 1 Comment