There are lots of benefits when you have a greenhouse besides keeping the orchids toasty in the winter months. First of all, it puts me in charge of watering. No more black rot caused by daily thunder storms. I can also easily protect them from high winds. I have three 24 inch exhaust fans that keep the temps under control in the summer. If I open the windows on the far end and turn on those fans I have a nice breeze coming through that doesn't allow heat build up. The fans are on a timer which I have set up so they come on about 10:00 AM and shut off about 6:00 PM. I use them from mid May through mid October and then shut them off for the winter months. In winter, I keep the windows open to take advantage of the breeze off of the lake. Since I walk right out the back door of the house into the OC, it feels like it is inside and that makes it easy to use. The Aluminet blanket that covers the roof also works to control temperature extremes as does the big swimming pool. All in all, not much of a problem no matter the season.
Jim
