So I plugged in some information on heating a greenhouse with natural gas in my area. My natural gas is $ 4.3070 per mcf (mcf=1000 cubic feet). The calculator I used says I'd use 6510 cu ft of natural gas per winter season. Is it naive to believe that that means I'd only use $28 worth of natural gas in an entire season? I'm not the best at math so please feel free to correct me! Just shocked at how little that actually is!
http://www.littlegreenhouse.com/heat-calc.shtml
The stats I used were: 165 sq ft greenhouse made with 6 MIL polyethylene (heat lost of 1.15), heated to 40ºF for 5 months out of the year at an average low temp of 22ºF.
http://www.littlegreenhouse.com/heat-calc.shtml
The stats I used were: 165 sq ft greenhouse made with 6 MIL polyethylene (heat lost of 1.15), heated to 40ºF for 5 months out of the year at an average low temp of 22ºF.