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2018 Washington State Energy Code-Residential <br /> Prescriptive Energy Code Compliance for All Climate Zones in Washington <br /> Single Family-New&Additions(effective February 1,2021) <br /> Each dwelling unit In a residential building shall comply with sufficient options from Table R406.2(fuel <br /> normalization credits)and Table 406.3 (energy credits)to achieve the following minimum number of <br /> credits.To claim this credit,the building permit drawings shall specify the option selected and the <br /> maximum tested building air leakage,and show the qualifying ventilation system and its control sequence <br /> of operation. <br /> 1. Small Dwelling Unit:3 credits <br /> Dwelling units less than 1,500 sf in conditioned floor area with less than 300 sf of fenestration area. <br /> Additions to existing building that are greater than 500 sf of heated floor area but less than 1,500 sf. <br /> 2. Medium Dwelling Unit:6 credits <br /> All dwelling units that are not included in#1 or#3 <br /> 3. Large Dwelling Unit: <br /> Dwelling units exceeding 5,000 sf of conditioned floor area <br /> 4. Additions less than 500 square feet:1.S credits <br /> All other additions shall meet 1-3 above <br /> Before selecting your credits on this Summary table,review the details in Table 406.3(Single Family),on page 4. <br /> Summary of Table R406.2 <br /> Heating Fuel Normalization Descriptions Credits-select ONE User Notes <br /> Options heating option <br /> 1 Combustion heating minimum NAECAb 0.0 ❑ C ] <br /> 2 Heat pump` 1.0 ❑ E ] <br /> 3 Electric resistance heat only-furnace or zonal -1.0 0 <br /> 4 DHP with zonal electric resistance per option 3.4 0.5 ❑ 1 ] <br /> 5 All other heating systems -1.0 ❑ r ] <br /> EnergyCredits-select ONE <br /> Options, Energy Credit Option Descriptions energy option from each <br /> p category <br /> 1.1 Efficient Building Envelope 0.5 ❑ <br /> 1.2 Efficient Building Envelope 1.0 0 E I <br /> 1.3 Efficient Building Envelope 0.5 e E ] <br /> _ 1.4 Efficient Building Envelope 1.0 El <br /> _ 1.5 Efficient Building Envelope 2.0 E] E ] <br /> 1.6 Efficient Building Envelope 3.0 ❑ <br /> _ 1.7 Efficient Building Envelope Er0.5 ElE ] <br /> 2.1 Air Leakage Control and Efficient Ventilation 0.5 ❑ <br /> 2.2- IAir Leakage Control and Efficient Ventilation 1.0 ❑ L ] <br /> _ 2.3 Air Leakage Control and Efficient Ventilation 1.5 ❑ E ] <br /> _ 2.4 Air Leakage Control and Efficient Ventilation 2.0 ❑ [ ] <br /> 3.1a High Efficiency HVAC 1.0 ❑ C ] <br /> 3.2 I High Efficiency HVAC 1.0 ❑ [ ] <br /> _3.3a High Efficiency HVAC 1.5 El [ ] <br /> _ 3.4 High Efficiency HVAC 1.5 El C ] <br /> _ 3.5 High Efficiency HVAC 1.5 ❑ C ] <br /> 3.6a High Efficiency HVAC 0 2.0 _ ❑ E ] <br /> _ 4.1 High Efficiency HVAC Distribution System 0.5 El ] <br /> 4.2 High Efficiency HVAC Distribution System 0 1,0 0 _ ] <br /> Prescriptive Path-Single Family 2018 Washington State Energy Code-R 2 <br />