21.   The furnaces would switch on, heat the house quickly, then switch off until the thermostat indicated the house had cooled off again.

22.   The Kirchners also trap the muskrats favored by recent Russian and Chinese immigrants, and they chop wood to heat their house.

23.   This is another appliance to run only at night to keep it from heating your house.

24.   To know how to use shading effectively, it is helpful to understand how the summer sun heats your house.

25.   In Romania, for instance, heating a house with oil or gas now costs half the average monthly pension.

26.   MacDonnell heats his house with oil, but uses gas in a three-family house he owns.

27.   The Jefferson County house was heated with a wood-burning stove.