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. ( � <br /> All whole house vcntilation requirements as detennined by Q,$ I <br /> Scction M 1508 of the Washington State Residential Code <br /> shall be met�vith a hcat recovery ventilation system in <br /> accordance with Section M 1508.7 of that Code. <br /> 4b ADDITIONAL AIR LEAKAGE CONTROL AND <br /> F.FFICIENT VF,NTILATION: <br /> 6nvclope Icakase rcduced to SLA of0.00015 building 1 <br /> and <br /> All whole house ventilation re uirements as detennined b <br /> Sa F.FFICIENT WATF.R HF.ATING:� <br /> Wa�er heating system shall include one of the follo'.ving: I <br /> Gas,propane or oil water heater with a minimurr, F.�of 0.62. � <br /> or <br /> Blectric Water Hester with a minimum Gf of.93. 0.5 <br /> anJ for both cases <br /> All showcnc�ad and kitchen sink faucets installed in the I <br /> housc shall meet be rated at 1.75 GPM or less. All other <br /> lavatory faucets shall be rated at I.0 GPM or Iess.'' <br /> Sb HIGH E�FICIENCY WATER HEATINC:� <br /> Water heating system shall include one of the following: <br /> Gas,propane or ail waten c�ater with n minimum BF of 0.82. <br /> or <br /> Solar waten c�ating supplementing a minimum standard water <br /> hcatcc Solar watcr heating will provide a rated minimum � 5 <br /> savings of 85 tlicnns or 2000 kWh based on thc Solar Rating <br /> and Ccrtification Corporation(SRCC)Mnual Pcrfonnance <br /> of OG-300 Cehified Solar Water Heating Systems. <br /> or <br /> Clectric heat um water heatcr with a minimutn GP of 2.0. <br /> 6 SMALL DWF.LLING UNIT 1:� <br /> Dwclling units Icss than I500 squarc fcet in Iloor area with <br /> less than 300 squnre feet of window+daor area. Additions 1 <br /> to existing building that are Icss than 7�0 square fect of <br /> hcated (loor arca. <br /> 7 LARCE DWF.LLING UNIT t:� <br /> Dwelling wiits exceeding 5000 squarc fect of Ooor area shall _� <br /> be assessed a deduction for purposes of complying with <br /> Section 901 of this Code. <br /> g RF.NEWA[3LF. F.LECTRIC ENF.RGY: <br /> Por each 1200 kWh of clectrical generation provided <br /> annually by on-site wind or solar equipment a 0.5 credit shall <br /> be allowed,up to 3 credits. Generation shall be calculated as <br /> fol lows: <br /> Pbr solar electric sys�ems,thc design shall be demonstrated <br /> to mcet this rcquirement using thc National Renewable <br /> Gncrey Labontory calculator PV WATTs. Documentation 0.5 <br /> noting sol�r access shall be included on die plans. <br /> Por wind generation projects designs shall document annual <br /> powcr generation bascd on the following factors: <br /> WSEC Prescripti��e Worksheet(2010 Edition) WSUEPIO-010 Copyright 2010 ` , i <br />