if im correct, they dont search for heat in your house, because a heater will give off more heat than your plants ever will. i know they do infra-red waves to see what heat waves plants give off but that is always done outdoors since Marijuana plants give off more heat then most plants.
santacruz_organic Reviewed by santacruz_organic on . Detection how fool proof is it. If you were to keep your grow room about 3 or 4 foot from the outside walls and roof would it still give off heat that the choppers can pick up on? The place I think i could grow in is in the loft but the roof is sloping in there is about 6 foot at the highest point to about 3 foot at the lowest there is a 3x3 space easily with about 6 foot roof height. If I kept the plants down to 3 foot then i would the heat would be not be noticeable. Rating: 5