Actually, its 24 degrees outside. I'm in OHIO. I built this barn last winter with the intent that its first project would be the EZ (this year).
When I'm doing any major glass work, I crank the heat up to 85 and leave it there for 24 - 36 hours.
Its a standard 24x32 ft pole barn. It has 6 inches of insullation all around. 6 inch cement floor, 8 x 16 roll up door. and no windows (they are a heat loss.
Over the Christmas vacation, I kept it at 75. When we had a couple days of -15, the heater in the barn (30k BTU) ran about 15 minutes out of each hour. The heater in my house (70F) was running 30 minutes each hour.
When I lived in California, That's one of the things I realized, The hotter the work area, the better the layups, and the harder the cure.
Waiter