Archive for the 'Evacuated Tubes' Category

Homemade Solar Collectors Intriguing

Thursday, November 12th, 2009

nuSun, inc. sells complete solar evacuated tube type water heater collectors.  But we also sell the various individual components that go to make up a complete system, including a really nice Solar Water Heater Controller.  While the solar evacuated tubes are very efficient, they are pretty expensive and require some care and feeding.  So I […]

Caring for Solar Evacuated Tube Water Heater

Wednesday, October 21st, 2009

Solar hot water heaters require periodic maintenance, no matter flat plate or evacuated tube types. That is why I would not advise putting the collector on the roof, unless you have a safe and convenient way of accessing the collector. I am not too familar with the flat plate collectors as nuSun, inc. […]

Prototect your evacuated tubes from overheating

Friday, September 4th, 2009

I installed my own evacuated tube solar hot water heater system. It was and still is a learning experience. One thing I learned is that you must take serious precautions against collector overheating. An overheated collector can leave you with evacuated tubes that are no longer running at 100% efficiency.
Now when […]

Solar Thermal Evacuated Tubes In Cloudy Weather

Tuesday, May 19th, 2009

We have been having some pretty cloudy weather lately, and that has been a challenge for those of us who depend on our solar hot water systems. But I have noticed that even on days when there is cloud cover all day we still make some hot water. I read where the evacuated […]

Evacuated tubes amaze me on cloudy days

Sunday, May 3rd, 2009

Today, here in the mountains, was overcast and light rain on and off all day. But the solar evacuated tubes out back made hot water off and on all day. Sure enough the water was not scalding hot but the collectors made water that was warmer than what was in the bottom of […]

Solar Evacuated Tubes

Sunday, March 1st, 2009

The evacuated tube as solar heat collector is an amazing piece of technology.  It is said that the evacuated tube for solar heating was invented in Germany and then sold to a Chinese company some 30 years ago.   The tubes are relatively more efficient than flat plate collectors, but they do have some weaknesses.  There […]