Sunglo for the win! It got down to -1°, I had to duck tape the French doors (bit of a draft) but my heater was able to keep the inside above 50°! 🪴💚
by Littlemiss_Girl
Sunglo for the win! It got down to -1°, I had to duck tape the French doors (bit of a draft) but my heater was able to keep the inside above 50°! 🪴💚
by Littlemiss_Girl
2 Comments
Details on heater, dimensions of the greenhouse, etc?
I bet the heater was working quite hard to keep it warm! My greenhouses are in northeastern Tennessee. Our weather most winters is fairly mild but we will on occasion have temps in the single digits and maybe once or twice per decade we will have subzero temps. We came real close this past January (3 degrees) and December of 2022 (0 degrees). Nine years ago our temps plummeted to -13 degrees and the wind was blowing around 30 mph on top of that. We heat our greenhouses with a hot water boiler. Then the hot water is circulated around the houses through many runs of plain bare metal pipe. Normally I will keep the aquastat on the boiler set at a water temp of 120-125 degrees. On the -13 degree night I had the boiler temp set on 165-170 degrees. The pipes would burn your hands if you touched them. I had never felt the pipes that hot. But I managed to keep the greenhouses at 50–55 degrees all night. There’s something about nights like that that I love. To be able to stand inside a greenhouse full of plants and it be warm and humid inside, but you look outside through 1/8” of glass and it’s bitterly cold and the wind is howling. The inside surface of the glass always has condensation on it at night, lots of condensation. When it gets that cold all of that condensation freezes solid. Yet despite all of that cold, tropical/warm weather plants are growing and blooming, oblivious to the instant death that they would face outside. That’s just one more reason I love dealing with greenhouses!!!