Bernard Waxman's posts

Posted by Bernard Waxman on Feb 16, 2009 03:12 pm

#1 -  Renewable Energy > Technical Discussion: Other > Re: solar space heating BTUs
If you go to this web site you will find a calculator for converting watt-hours into BTU. From the SRRC specs, in one of their "rating days" a SunMate panel should produce about the same heat as your electrical resistance heating of 4500 watts does in one hour. Of course, the actual output of the SunMate depends on your location and how the panel is located.

If the panel does not face within about 10 to 20 degrees of south, your results will be quite a bit less. You can go to my web page at to read about my experience with the SunMate panels.

I selected the SunMate over the Solarsheat because the SunMate, according to the SRRC tests, does better under lower temperatures and partially cloudy skies. As far as the input and output of the panels being near each other. This does not appear to cause any problem. And yes, the SunMates can be mounted sideways, but the standard mounting brackets may not work. You should check with Environmental Solar systems on the mounting the units sideways.

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