Shady green thumb: We calked and used the weatherstripping that came with the door but nothing else. Ours is the harbor freight. Cheap end of the scale but fun for starting out.
See my post above--The mylar blanket and incandescent light worked very well. We are putting some "grommets" that we got at Home Depot (sold in section where you find shade fabric) in the mylar and will figure an easier way to do a better drapping than last night. Got ten Mylar blankets at Amazon for less than ten dollars. It's pretty tough but can tear (but can also be taped if torn). I hear they sell a tougher version designed for outside use too. Will be interesting to see as it gets colder whether we need another light. We calculated a 65 watt bulb running 8 hours to be less than a dime so very affordable. Putting the bulb in a holder close to the floor allowed the heat to rise up through the plants. Didn't run a fan to circulate heat but may try that also.
