WA STATE ENERGY CODE OPTION DESCRIPTION CREDIT S �
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<br /> 1a EFFICIENT BUILDING ENVELOPE 1a: Prescriptive compliance is based on 3ab HIGH EFFICIENCY HVAC EQUIPMENT 3a: Gas, propane or oil-fired furnace � � �
<br /> Table R402.1.1 with the following modifications: Fenestration U .= 0.28 Floor with minimum AFUE of 94%, or Gas, propane or oiled-fired boiler with minimum � � �
<br /> R-38 Slab on grade R-10 perimeter and under entire slab Below grade slab AFUE of 92% To qualify to claim this credit, the building permit drawings shall
<br /> R-10 perimeter and under entire slab or Compliance based on Section specify the option being selected and shall specify the heating equipment type #
<br /> R402.1.4: Reduce the Total UA by 5%. =.5 CREDIT and the minimum equipment efficiency. =1 CREDIT � N �
<br /> . 5a EFFICIENT W R HEATI . r h in s tem shall include one of the s �
<br /> 2a AIR LEAKAGE CONTROL AND EFFICIENT VENTILATION 2a. Compliance based ATE NG 5a Wate eat g ys �
<br /> on R402.4.1.2: Reduce the tested air leakage to 4.0 air changes per hour maximum following: Gas, propane or oil water heater with a minimum EF of 0.62 or Electric
<br /> and All whole house ventilation requirements as determined by Section M1507.3 of water heater with a minimum EF of 0.93. and for both cases All showerhead and
<br /> the International Residential Code shall be met with a high efficiency fan kitchen sink faucets installed in the house shall be rated at 1.75 GPM or less. All
<br /> (maximum 0.35 watts/cfm), not interlocked with the furnace fan. Ventilation other lavatory faucets shall be rated at 1.0 GPM or less.b To qualify to claim this z
<br /> systems using a furnace including an ECM motor are allowed, provided that they credit, the building permit drawings shall specify the option being selected and � ,
<br /> shall specify the water heater equipment type and the minimum equipment
<br /> are controlled to operate at low speed in ventilation only mode. To qualify to claim U�
<br /> this credit, the building permit drawings shall specify the option being selected efficiency and shall specify the maximum flow rates for all showerheads, kitchen � ;
<br /> and shall specify the maximum tested building air leakage and shall show the heat sink faucets, and other lavatory faucets. =,5 CREDIT � �-
<br /> recovery ventilation system. =,5 CREDIT � �
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<br /> 5b EFFICIENT WATER HEATING 5b: Water heating system shall � �Q
<br /> include one of the following: Gas, propane or oil water heater with a z � �
<br /> minimum EF of 0.82 =1 CREDIT �- � �
<br /> 3i�-o�� � �
<br /> 3.5 TOTAL CREDITS NEEDED
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