Hi Ron. Sorry to read about your troubles with temps. Since fuel is so expensive here, we are supplementing our gas heat in the greenhouse with the oil-filled heaters. We let the temps get down to 55. I have to have the oil -filled heaters set on about 80 to keep the gas heater from coming on that often, but it does run at night. We are only getting down to the low 20s here, so I can imagine what it must be like to heat a greenhouse in Oregon. Good luck.