DIY installation could save you upwards of $200, but check your local building codes; there are some areas where ... This type monitors the number and duration of furnace running cycles, compares that information with the setback differential, anbsp;...
|Title||:||Popular Science Do-It-Yourself Yearbook, 1986|
|Author||:||Popular Science Magazine Editors, Popular Science|
|Publisher||:||Rodale Press - 1988|