I am constantly finding companies (contractors, not manufacturers) who advertise that the tankless water heater they install will give you 7-8 gpm of hot water when heating from 10C to 50C (122F). Sorry, but this should taken with a grain … Continue reading →
No solar system can run without an expansion tank. But many water boiler installers and engineers have no idea how to size an expansion tank for solar. It is often believed by many engineers and contractors new to solar that an … Continue reading →
There are a lot of vacuum tube collectors (i.e. solar panels) available on the market these days, and there is definitely a lot of misinformation out there. I shall try to rectify this to some extent. “Vacuum collectors are more … Continue reading →
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 →