I am by no means an experienced grower of hot peppers. I started my seeds in the fall, apps 4 months ago. I don't have much space on the main floor in my home for all my plants so I just built a little tent, wrapped it up in vapour barrier, and laid some pink fibreglass insulation on the top of it. I also cut out 1.5" cladmate and put in the sides just inside the vapour barrier. This is the only picture of my little enclosure I have at the moment but I can get you an updated picture if you'd like to see. I just ripped up some 2x4 on the table saw and screwed it all together! My peppers seem to be doing great so far... but my basement is usually cold. Sometimes it can be as low as 14c down there. I just have 2 shop lights hung in there with T8 bulbs, the heat from the lights seem to kept the tent and plants warm enough. It hovers around 22-24c in there. I keep the light on 24/7! The plant pictured is my Habanero, its been growing down there for 4 months.. along with some ghosts, Carolina reapers, Jalapeños, and Trinidad Moruga Scorpions!
Trevor