Neal, the reason why is easy, because I haven't done it yet. Actually now that stoves have electronics they'll never have it since electronics around water have to have special design criteria and certifications in the US but still a novel idea.
10/11: Bought the perfect house;
11/12: 10k & 200 hours,08/13: 30k & 400 hours into the perfect house, 12/13: 35k & 500 hours
02/14: 37k & 550 hours, 08/14: 38k & 650 hours
05/15: 40k & 700 hours and I think it's done, Home appraised +40k!!! 1 to 1 ratio achieved!