gaz2020, I am in trouble if the cops can see through walls. I have 2 - 600w HPS plus a 1000w HPS plus 2 more 400w MH. I understand that thermal imaging can see general heat patterns from a house, but I don't think for a second that they can make out the source. Besides, heat coming from your house is hardly the basis for a search warrant. You are much more likely to get busted by showing off your grow show to some one ignorant who can't keep their mouth shut. But if you showed, how can you blame them for not keeping a secret that you can't keep. Be safe, Don't show!