I am restoring a 15 x 10 ft. greenhouse in north FL--twinwall polycarbonate on aluminum frame set on a 3-foot wall. GH is attached to a small concrete block shed. It will have two exhaust fans, ceiling fan, 4 vents in the wall, possibly a louvered window in the door to the shed.
Most people seem to use fans in summer, heaters in winter. I have not read much about air conditioners in greenhouses and wonder why. Outrageous electric bills? I am considering installing an electric reverse-cycle air conditioner/heater in the GH wall. Is this sensible/practical? Thanks. T-L