Savings and cost estimates are provided in the form of a calculator, in which the user can specify the size (floor area) of the existing and new homes, the vintage of the existing home, the efficiency rating of the new home, and the heating system type of each home. Costs account for decommissioning the existing home; preparing the site for the new home; and the purchase, transportation, and installation of the new home.

The RTF developed savings and cost estimates to support regional conservation program interest in this measure, despite it being far from cost-effective on an energy basis alone.  Conservation programs are exploring partnerships with other regional and federal funding sources that reflect the potential for energy, health, and social benefits.