There is nothing the least bit scientific about how we check for leaks in our own home. For example: It often feels cold near our windows -- we assume there is a leak. See what we mean?
But what about other places that aren't so obvious? Around electrical outlets? Or recessed lights in the ceiling?
If you wanted to do a full home inspection, a tool like Black and Decker's new Thermal Leak Detector could be invaluable. It's essentially a heat seeking, temperature change detecting raygun. Point and shoot at suspicious spots and it will tell you if there's a leak and how bad it is. Once you know where the leaks are, you can easily seal and insulate those areas, saving yourself big bucks on those heating and cooling bills.
The Leak Detector ($39.99) will be available in Spring '09. What do you think: helpful green tool or unnecessary gadget?