CricketsGarden wrote: Built a greenhouse room off the back door. Wood burning heater just inside the back door in the livingroom. Just a place to start some early seeds and store a few plants. It's 6x12. We put an electric heater in there too for back up when we don't wake up to load the heater. It has used greenhouse poly on it. I wanted to put some polycarbonated sheets on it next year but that is iffy. Might just put the sheets on the roof and put screen around the walls and remove and replace the poly every winter and spring.