Whos more power hungry?

[melev]

I keep it within 2 degrees, but in a greenhouse you've got much more heat to contend with, plus often quite cold nights. Nevada / Arizona are well-known for 30 to 40 degree changes every day to night. Where are you located?

[Fatman]

I keep it within 2 degrees, but in a greenhouse you've got much more heat to contend with, plus often quite cold nights. Nevada / Arizona are well-known for 30 to 40 degree changes every day to night. Where are you located?

South Fla, so basically have to deal with 90+ during the day, 80s at night and High humidity.