Ive recently bought a new place up in Maine and have a 24x24x11.5 garage clean slate to build out, I plan on building 1x 10x20 insulated room for now with 6x or 8x 1000w DE's, 48k mini split and modify an ebb n flow system i have for top feed drain to waste. Any tips or input on building a sealed room within a garage would be greatly appreciated. How does one dtw in the frigid cold of Maine winters? will I need to add an aquarium heater to my feed reservoir to keep it from freezing in the uninsulated garage? Ive never ran a top feed dtw, what kind of pump and feeding system should I look at using? I will probably use either perlite or hydroton for the medium, i thought abput coco too but ive had bad experiences with coco in recirc setups and ph. Maybe it will be much simpler in a dtw scenario. which one would be better for a top feed dtw like this? Eventually I'll add in a c02 burner once I get the room dialed in for 1 or 2 cycles. We have a buried propane tank out here so I'll get it plumbed straight to that.