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https://www.greenhousecatalog.com/greenhouse-insulation
Greenhouse Covering Insulation Comparison
Compare the insulation quality of Solexx to other greenhouse coverings on the market...
Greenhouse Covering ..............R-Value U-Value
5mm Solexx Panels ..............2.30 .........0.43
3.5mm Solexx Panels ..............2.10 .........0.48
8mm Triple Wall Polycarbonate 2.00 .........0.50
Double Pane Storm Windows 2.00 ..........0.50
10mm Twin-Wall Polycarbonate 1.89 ..........0.53
8mm Twin-Wall Polycarbonate 1.60 ..........0.63
6mm Twin-Wall Polycarbonate 1.54 ..........0.65
4mm Twin-Wall Polycarbonate 1.43 ..........0.70
Single Pane Glass, 3mm ........0.95 ..........1.05
Poly Film, 6mm ........................0.83 ..........1.20
R-Value: measure of 'insulating ability' of the material. The higher the R-Value number the greater the insulation.
U-Value: measure of 'heat loss' through the material. The lower the U-Value the less heat is escaping.
*Independent testing, Solexx with caulked flutes.
Greenhouse Covering Insulation Comparison
Compare the insulation quality of Solexx to other greenhouse coverings on the market...
Greenhouse Covering ..............R-Value U-Value
5mm Solexx Panels ..............2.30 .........0.43
3.5mm Solexx Panels ..............2.10 .........0.48
8mm Triple Wall Polycarbonate 2.00 .........0.50
Double Pane Storm Windows 2.00 ..........0.50
10mm Twin-Wall Polycarbonate 1.89 ..........0.53
8mm Twin-Wall Polycarbonate 1.60 ..........0.63
6mm Twin-Wall Polycarbonate 1.54 ..........0.65
4mm Twin-Wall Polycarbonate 1.43 ..........0.70
Single Pane Glass, 3mm ........0.95 ..........1.05
Poly Film, 6mm ........................0.83 ..........1.20
R-Value: measure of 'insulating ability' of the material. The higher the R-Value number the greater the insulation.
U-Value: measure of 'heat loss' through the material. The lower the U-Value the less heat is escaping.
*Independent testing, Solexx with caulked flutes.
Basically not much my 40 square meter garage is r11 at the garage doors and far better elsewhere.
So 3kwatts is not enough when it is -5c 6kwatts is enough in my well insulated garage.
I think you may need 10x for your 500 square meter greenhouse so maybe 10-15 miners at least 10
But you can start with 2 and see what you get as they are cheap now.
https://vmssecuritycloud.com/product/used-bitmain-oem-s19-100t-low-power-autotune-firmware/
under 600. He is a decent seller.
