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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: u u rust.., <br /> All dwelling units that are not included in #1 or#3 <br /> 3. Large Dwelling Unit: Yeditr <br /> Dwelling units exceeding 5,000 sf of conditioned floor area <br /> 4. Additions less than 500 square feet: <br /> All other additions shall rri . 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 Credits-select ONE 1 <br /> O tions. Fuel Normalization Descriptions heating option User Notes <br /> p 1 Combustion heating minimum NAECAb 0.0 ❑ J <br /> 2 Heat pump' 1.0 0 <br /> 3 Electric resistance heat only-furnace or zonal -1.0 ❑ <br /> 4 DHP with zonal electric resistance per option 3.4 0.5 ❑ <br /> 5 All other heating systems -1.0 ❑ <br /> Energy Credits-select ONE <br /> Energy Credit Option Descriptions energy option from each <br /> Options category a <br /> 1.1 Efficient Building Envelope 0.5 ❑ <br /> 1.2 Efficient Building Envelope 1.0 ❑ <br /> 1.3 Efficient Building Envelope 0.5 0 <br /> 1.4 Efficient Building Envelope 1.0 ❑ <br /> 1.5 Efficient Building Envelope 2.0 ❑ <br /> 1.6 Efficient Building Envelope 3.0 ❑ <br /> 1.7 Efficient Building Envelope ❑ 0.5 ❑ <br /> 2.1 Air Leakage Control and Efficient Ventilation 0.5 ❑ <br /> 2.2 Air Leakage Control and Efficient Ventilation 1.0 0 <br /> 2.3 Air Leakage Control and Efficient Ventilation 1.5 ❑ <br /> 2.4 Air Leakage Control and Efficient Ventilation El 2.0 ❑ L <br /> 3.1a High Efficiency HVAC 1.0 ❑ <br /> 3.2 High Efficiency HVAC 1.0 0 <br /> 3.3' High Efficiency HVAC 1.5 ❑ I <br /> 3.4 High Efficiency HVAC 1.5 ❑ <br /> 3.5 High Efficiency HVAC 1.5 0 <br /> 3.6a High Efficiency HVAC 0 2.0 ❑ <br /> 4.1 High Efficiency HVAC Distribution System 0.5 0J <br /> 4.2 High Efficiency HVAC Distribution System -❑ 1.0 ❑ I <br /> Prescriptive Path-Single Family 2018 Washington State Energy Code-R 2 <br />