Biopowered - vegetable oil and biodiesel forum
General => Alternative heat and power => Topic started by: Tony on July 03, 2017, 08:31:13 PM
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I did some searching around and found this:
https://en.wikipedia.org/wiki/Smudge_pot
Turns out you open an extra hole per degree drop below -2C, to keep your orchard warm (or avoid laser guided bombs).
Also called "hard hat", "hy-lo" or just "orchard" heaters.
Maybe Vince will need a few?