Mark Remy bought his 1960s era San Diego home in 2008 as a fixer-upper. But even after remodeling, with new windows, sliding doors, stucco, ceilings and more, it still wasn't as comfortable as he wanted.
"When I moved into my house, it was like camping out," Mark said. "In the winter, I could see my breath in the morning." He was also concerned about the safety of the natural gas-burning wall heater.