Units must meet targeted Energy Factors (EF) according to the size of unit.
Gas and tankless water heaters are not permitted in a Touchstone Energy® HomeSM.
Combustion fireplaces must have outside air for combustion, tight fitting dampers, tempered doors, insulated chimney flues with air and thermal barriers. See Section 6 of the Touchstone Energy Home Standards for more information.
Wood Central Heating Systems are prohibited.