Every winter we put our potted plants in our greenhouse and most of them die. We do not have electricity for the greenhouse to run a heater.
What is everyone’s best way to keep your greenhouse warm for those that do not have electricity in there? Or should I just hire an electrician to bring electricity into the greenhouse?
What is everyone’s best way to keep your greenhouse warm for those that do not have electricity in there?
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Doug
This is my totally passive 4 season greenhouse that stays above 39 F when it is -10 F outside here in Zone 6a.
Also, check out: We have been thinking about building an underground greenhouse. Anyone in zone 6 have one? Would I need additional heat?
Also, check out: We have been thinking about building an underground greenhouse. Anyone in zone 6 have one? Would I need additional heat?
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Kitissia
We use a heavy duty extension cord and a Milkhouse heater. I like to keep it in the 50’s. It is all glass and just 6x7 - so not too hard to heat.
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Celia
I have a greenhouse and we run extension cords from our office to the greenhouse. I have a small heater that works well for me when it’s below 34 deg outside. If there are days when it’s warm, we just unplug the cord n the office.
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Kathryn
I insulate well and then use a row cover and a smaller cold frame in the gh, I establish the cold hardy plants by September and have fresh lettuce until January-ish! They slow down in feb but continue to grow come march/April.
No heat (yet) just the gh plus 2 other layers of protection. I found foil wrap insulation and bubble wrap are excellent.
Don't forget to take a look at: I'm looking for ideas to help keep the greenhouse warm
No heat (yet) just the gh plus 2 other layers of protection. I found foil wrap insulation and bubble wrap are excellent.
Don't forget to take a look at: I'm looking for ideas to help keep the greenhouse warm
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David
A lot of commercial greenhouses use propane or natural gas Reznor type gas heaters. You need electrical for this furnace also.
If you have a boiler in your home, you can send a loop to the greenhouse.
Storing a lot of water in a tank in the greenhouse can slow down wide temperature swings!
My neighbor has a wood burner outside that heats a boiler and with control valves, send hot water to loops in his house, and to the greenhouse. He grows strawberrys and tomatoes all winter long in zone 5.
If you have a boiler in your home, you can send a loop to the greenhouse.
Storing a lot of water in a tank in the greenhouse can slow down wide temperature swings!
My neighbor has a wood burner outside that heats a boiler and with control valves, send hot water to loops in his house, and to the greenhouse. He grows strawberrys and tomatoes all winter long in zone 5.
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Peyton
How far from the house? How big is your greenhouse? I have a 7x8 and run an extension cord that is big enough to hold the amps of my small heater. I keep it on low, has worked great for the last two years.
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Richard
Just run electricity. It’s not that bad. Especially if you dig the trench yourself. Or do it yourself. I’m in zone 7 and it works out fine for me. With two 1500w heaters I can keep it 60 if I want to in below freezing temps. It’ll cost 100$ plus a month but it’s a hobby and I enjoy it. If you keep at 40 degrees it’s a lot less.
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Cathy
What zone are you in? Here in zone 4 where we get down to -30 C, we'd be bringing everything into the house. I can't imagine the electricity it would suck up to keep my plants alive!