The footing was out of square and about 8 inches long. Fortunately we could still make it work. The house will be about 8 inches wider. We spent several days leveling the gravel putting down plastic, 1 inch of foam and 1000 ft of radiant tubing. We only did the main living area in the basement and a small portion of the media room. We ran 5 200ft loops. I will probably design an outdoor wood burner for this eventually.