My wife has put her foot down and we have come to an agreement that I can no longer start seeds inside the house. We have been infested with fungus gnats. I took all of my seed starting stuff to the garage and have been using Mosquito Bits in the regular houseplant mix as well as watering with aerated water infused with mosquito bits. Hopefully this will take care of the problem for now. Next year what am I to do. We live in St Louis, MO, zone 6. I have an unheated but fully insulated garage that I will be using. I want to build some sort of seed starting box to fit my trays in. they will need a heat source, now I am using a 48x20 inch heat mat. will need some extra heat if I do a 2 shelf system. Any ideas or comments. No I am not getting rid of my wife. would love some pics or diagrams.