So the setup I'm planning to do will be a 1m x 1m x 1.8m tent, surrounded by IR block lined DIY wardrobe. I'm going to use a 600w sodium lamp with digital ballast. I plan to vent air from the grow by running the extractor fan and carbon filter, with aluminium ducting into an en suite, joining hot air from grow with bathroom extractor fan. I will also line the ducting with IR block. Will this be a good way to extract air, or will continuous hot air be look suspicious to helicopters with IR camera's?
looks too suspicious. Though helicopters won't care about 600w they are looking for the big boys. just get a cheap A/C unit.
Honestly a 600w would be barely visible if you disperse the heat around the house. I mean it's like turning on a space heater.