Tuesday, October 31, 2002
Joyce Mueller's house looks like many other houses built around MetroWest during the 1950s.
Known as a Campanelli slab - after the builder who put up thousands of ranch houses in the area - it was never an easy home to heat.
The houses were built with a series of heating coils in the concrete floors. Hot air rises from the floor to heat the whole house. But it is not the most efficient way to heat a home, according to local energy experts.