Thanks Farm23!
PS: A 220 volt heater is much more energy efficient than a 110, because it provides a balanced load.
That solar heater is too ugly, too much work, and only provides heat for 5 daylight hours. The need is for just low, constant heat, particularly overnight, to keep the tools and equipment above the dew point.
I happily keep my Morton (R19 walls & R38 ceiling)at a minimum of 55 degrees 24/7/365, yet seldom hear the heaters run. (Mostly just on cold days after I have opened the OH doors for some reason.)
I use two of these heaters
Portable Electric Garage Shop Space Heater Model BRH562 - eBay (item 200186716018 end time Jan-04-08 07:57:37 PST) , hard wired. One is set at 55 and left on all the time. The second one is set at 70, and is only turned on when I will be working inside for an extended period.
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