Open2
Q.

Heat transfer in a heated cold frame

Zone Mendon, NY zone 5b, 6a | Doug dumm added on February 13, 2017 | Answered

I am in zone 5 and want to start seeds in a cold frame that I am going to build and put a heat wire in the bed. I want to use plastic 6-packs for ease of transplanting. What do I need to do to ensure that I get good heat transfer from the heat wires, through the plastic pots, and finally to the seeds? I don't want to fail after building this new planting ability. Thanks, Doug.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on February 18, 2017

Make sure you check the seed packets for information on the temperatures needed for germination. Not every seed needs the same temperature.

Most germination heat mats have a reostat that can be changed to the proper temperature.
Do you have a way to control your heat wires you mention?

Since I'm not clear on the type of 'heat wire' you mention, it is difficult to make a recommendation.
When using a seed heating mat system the pots or germination trays sit direction on the mat.
https://www.gardeningknowhow.com/garden-how-to/propagation/seeds/cheap-seed-starting-how-to-germinate-seeds-at-home.htm
Make sure you also have ventilation in your cold frame.

https://www.gardeningknowhow.com/garden-how-to/projects/building-cold-frames.htm
https://www.gardeningknowhow.com/special/greenhouses/how-to-use-cold-frames.htm

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Open2
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More