"I'm picturing myself running around the outside of my house looking for hot-spots to re-insulate and hence justify to my partner the purchase price of the devi

"I'm picturing myself running around the outside of my house looking for hot-spots to re-insulate and hence justify to my partner the purchase price of the device." I just bought one of these last week to do exactly that http://www.amazon.com/gp/product/B0044R87BE http://www.amazon.com/gp/product/B0044R87BE It is definitely not as cool as a FLIR device but at 1/10 the price, totally worth it.