Open topic with table of contents
Natural-gas-fueled system designed to control the temperature of air and to provide for distribution of heat throughout the house.
Included in Cost: This cost represents an average of all complete gas fueled heating systems and should be used when the type of system is unknown.
Enter a percentage, between 0 and 100, of the total floor area of the home serviced by gas heating.
Help file last modified: 7/26/2018