Generally a bad idea. Police don't need a warrant to do FLIR scans of any building that isn't attached to your home and if you're unlucky enough to get caught on a FLIR the judge would grant a warrant so fast your head will spin, since most people's sheds aren't pumping out heat like an oven.well i already have solar panels on my house, but I'm planning on building a house like shed for more space to grow in my backyard