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Old 03-22-20, 12:40 AM   #9
menaus2
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Hi Redrok!

According David Poz (great youtube channel btw). Solar is more efficient per dollar & solar thermal is more efficient per area. I think he used commercial collectors so idk how a diy panel compares in terms of cost, but we'll sure find out! I'm estimating somewhere between $10.00 and $16.00 per sqft. Besides costs, I want to maximize the use of the area on the shed it's mounted on & get the most heat out of it. I would like to keep space for a PV array elsewhere dedicated for electric in the future. PV cost & storage will only come down with time so it makes sense to postpone that until later. Reducing my electricity usage is the lower hanging fruit on the electric side. Mostly though I just like building thermal systems & I have experience with it. For other people & their goals/ constraints PV heat might make more sense for them.
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