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Simple Heating System Size: WashlRon State 0 <br />This heating system sizing calculator is based on the Prescriptive Requirements of the 2015 Washinaton State Energy Code (WSEC) and <br />ACCA Manuals J and S. This calculator will calculate heating loads only. ACCA procedures for sizing coolina systems should be used to <br />determine cooling loads. <br />Please fill out all of the green drop -downs and boxes that are applicable to your project. As you make selections in the drop -downs for each <br />section, some values will be calculated for you. If you do not see the selection you need in the drop -down options, please call the WSU <br />Energy Extension Program at (360) 956-2042 for assistance. <br />Project Information Contact Information <br />VANDER VEEN Addition / remodel Jeffrey Almeter <br />5411 OCEAN AVE 9506 13TH AVE NW <br />EVERETT, WA 98203 Seattle, WA 98117 <br />Heating System Tyne: Q All other systems Heat Pump <br />To see detailed instructions for each section, place your cursor on the word `Instructions". <br />Design Temperature <br />Instructions Design Temperature Difference (AT) 49 <br />Everett Paine AFB dT = Indoor (70 degrees) - Outdoor Design Temp <br />Area of Building <br />Conditioned Floor Area <br />irstructiaos Conditioned Floor Area (sq ft) <br />r 3.688 <br />Average Ceiling Height <br />Conditioned Volume <br />Instructions Average Ceiling Height (ft) <br />F 7.8 <br />28,766 <br />Glazing and Doors <br />U-Factor <br />X Area = <br />UA <br />Instructions <br />U-0.28 <br />Lij i <br />0.280 <br />650 <br />182.00 <br />Skylights <br />U-Factor <br />X Area = <br />UA <br />Instructions <br />0.50 <br />-- <br />Insulation <br />Attic <br />U-Factor <br />X Area = <br />UA <br />Instructions <br />R-49 <br />0.026 <br />F 2.1527 <br />55.95 <br />Single Rafter or Joist Vaulted Ceilings <br />U-Factor <br />X Area <br />UA <br />Instructions <br />! <br />No Vaulted Ceilings in this project. <br />� <br />--- <br />Above Grade Walls (See Figure 1) <br />U-Factor <br />X Area <br />UA <br />Instructions" <br />R-21 Intermediate <br />0.056 <br />3,008 <br />168.45 <br />Floors <br />U-Factor <br />X Area <br />UA <br />Instructions <br />0.025 <br />2,206 <br />55.15 <br />Below Grade Walls (see Figure 1) <br />U-Factor <br />X Area <br />UA <br />Instructions <br />No Below Grade Walls in this project. ' <br />0.028 <br />Slab Below Grade (see Figure 1) <br />F-Factor <br />X Length <br />UA <br />Instructions w <br />No Slab Below Grade in this project. <br />0.303 <br />Lr��J1 <br />Slab on Grade (see Figure 1) v <br />F-Factor <br />X Length <br />UA <br />Instructions <br />No Slab on Grade in this project. <br />� <br />L-J <br />Location of Ducts <br />Instructions <br />Duct <br />Leakage Coefficient <br />Unconditioned Space <br />1.10 <br />Sum <br />of UA <br />461.55 <br />Envelope Heat Load 22,616 <br />Btu / Hour <br />Figure 1. Sum ofuAXAT <br />Air Leakage Heat Load 15,223 <br />Btu I Hour <br />Volume X 0.6 X AT X .01 a <br />Ano�ecrade Building Design Heat Load 37,839 <br />Btu I Hour <br />Air Leakage + Envelope Heat Loss <br />Building and Duct Heat Load 41,623 <br />Btu I Hour <br />Ducts in unconditioned space: Sum of Building Heat Loss X 1.10 <br />Ducts in conditioned space: Sum of Building Heat Loss X 1 <br />Maximum Heat Equipment Output 52,029 <br />Btu I Hour <br />Building and Duct Heat Loss X 1.40 for Forced Air Furnace <br />Building and Duct Heat Loss X 1.25 for Heat Pump <br />