I was wondering what you are going to use for fresh air vent? A co2 generator on propane would be amazing for that.
trinitybound Reviewed by trinitybound on . trying to grow in winter in OHIO i will be using a 3'X4' cold frame, i have already put 6 cubic feet of fresh planting soil in and i am germinating around 20 seeds now... i was wondering if anybody had any ideas that might help... Rating: 5