2404 74TH ST SE 2022 Plans 2024-05-16

TABLE 406.3(continued) ENERGY CREDITS --_- ---- ------ CREDIT(S) OPTION DESCRIPTION All Other Group R-2 3.HIGH EFFICIENCY HVAC EQUIPMENT OPTIONS Only one option from Items 3.1 through 3.6 may be selected in this category. 3.1 a Energy Star rated(U.S.North)Gas or propane furnace with minimum 1.0 1.0 AFUE of 95% or Energy Star rated(U.S.North)Gas or propane boiler with minimum AFUE of 90%. To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the heating equipment type and the minimum equipment efficiency. 3.2a Air-source centrally ducted heat pump with minimum HSPF of 9.5. 1.0 N/A To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the heating equipment type and the minimum equipment efficiency. 3.3a Closed-loop ground source heat pump;with a minimum COP of 3.3 1.5 1.0 —1 or Open loop water source heat pump with a maximum pumping hydraulic head of 150 feet and minimum COP of 3.6. To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the heating equipment type and the minimum equipment efficiency. 3.4 Ductless mini-split heat pump system,zonal control: in homes where the i 1.5 2.0 primary space heating system is zonal electric heating,a ductless mini-split — heat pump system with a minimum HSPF of 10.0 shall be installed and provide heating to the largest zone of the housing unit. • To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the heating equipment type and the minimum equipment efficiency. 3.5a Air-source,centrally ducted heat pump with minimum HSPF of 11.0. 1.5 N/A To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the heating equipment type and the minimum equipment efficiency. 3.6a Ductless split system heat pumps with no electric resistance heating in the 2.0 3.0 primary living areas.A ductless heat pump system with a minimum HSPF of 10 shall be sized and installed to provide heat to entire dwelling unit at the design outdoor air temperature. • To qualify to claim this credit,the building permit drawings shall specify the option being selected,the heated floor area calculation,the heating equipment type(s),the minimum equipment efficiency,and total installed heat capacity(by equipment type). 2018 Washington State Energy Code RE-45