Tankless water heater output

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

Flat solar collectors verses tube collectors

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