How warm does your greenhouse stay? Would my pepper plants be able to survive?

[Guest]

I don't have a greenhouse, but want one next year. I'm curious, when it gets down to the 20s at night.

[Raz]

I've gotten this far with a small electric heater here in MN. The forecast is calling for subzero temps and even my heater won't be able to counter that. I could insulate but I don't think the cost to continue heating is worth it.

[Vanessa]

I can barely afford to heat my house, let alone a green house.

[JoAnn]

I have a Harbor Freight 10x12 and use a small electric oil heater. With good daytime heating and minimal opening, I can keep mine at least 10-15 degrees above the outside temp. That’s been good enough for container peppers and tomatoes.

[Jeanna]

You have to have heat to stay warmer then outside. I’m in Michigan and keep mine around 50 degrees at night.

[Melody]

Unless the greenhouse is heated it won't be more than a couple degrees warmer than the outside temperature.

[Yolanda]

I'm in Ohio and when it is in the 20s outside, without running heat; it's 18 to 20 inside.