We don't have heater needs in Houston but I have been following this
thread. Do you guys use any Solar Panels combined with water storage? I
use 35 Gal. drums for bench supports (since I have plenty of them).
Panels can be made with plastic pipe, a small pump and half a dozen
drums and you could save some bucks on heating. The pipe panels could
serve as shade cloth at 50% blocking. Just a thought.
Joe T
Houston