I would like to get some opinions on an idea I have.\nI want to convert one of my planters I built into a small greenhouse that I can have my seedlings in while growing.\nI have a heated cord used for keeping ice build up off the roof edge of the house. It is low wattage, so shouldn't use much power.\n\n\n\nI would bury that cord in the dirt in the planter and then have this lid on it. It should gradually heat up the soil and the whole planter. I may even be able to start some plants early in that soil.\n\n\n\nI could make the lid sloped for water run off. What do you all think of this idea?