Laserfiche WebLink
Simple Heating System Size: Washington State <br /> This heating system sizing calculator is based on the Prescriptive Requirements of the 2015 Washington State Energy Code(WSEC)and ACCA <br /> Manuals J and S.This calculator will calculate heating loads only.ACCA procedures for sizing cooling systems should be used to determine cooling <br /> loads. <br /> The glazing(window)and door portion of this calculator assumes the installed glazing and door products have an area weighted average U-factor of <br /> 0.30. The incorporated insulation requirements are the minimum prescriptive amounts specified by the 2015 WSEC. <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 section, <br /> 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 Energy Extension <br /> Program at(360)956-2042 for assistance. <br /> Project Information Contact Information <br /> AMPUDIA-HANAOKA RESIDENCE ADDITION STALER DESIGN LLC <br /> 1005 91ST PL SE PO Box 13942 <br /> Everett,WA 98204 Mill Creek,WA 98082 <br /> Heating System Type: OSI Other Systems meat Pump <br /> To see detailed instructions for each section,place your cursor on the word"Instructions". <br /> Design Temperature <br /> mstru - Design Temperature Difference(AT) 49 <br /> Everett Paine AFB <br /> AT=Indoor(70 degrees)-Outdoor Design Temp <br /> Area of Building <br /> Conditioned Floor Area <br /> Instructions Conditioned Floor Area(sq ft) 1,098 <br /> Average Ceiling Height Conditioned Volume <br /> Instruct Average Ceiling Height(ft) 7.8 8,510 <br /> Glazing and Doors U-Factor X Area = UA <br /> 0.30 124 37.20 <br /> Skylights U-Factor X Area = UA <br /> Instn' 0.50 16 8.00 <br /> Insulation <br /> Attic U-Factor X Area = UA <br /> Instructions ------------- - _---- -_---- <br /> F 0.026 1,082 28.13 <br /> Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA <br /> Instruction <br /> smart F vad,e . No selection <br /> Above Grade Walls(see Fioure1) U-Factor X Area UA <br /> P-21 intermediate 0.056 760 42.53 <br /> Floors U-Factor X Area UA <br /> structior w 1 0.029 1,098 31.84 <br /> Below Grade Walls(seeFioure 1) U-Factor X Area UA <br /> s_dr r.,.d . No selection <br /> Slab Below Grade IseeF;ou,ell F-Factor X Length UA <br /> Slab on Grade(seeFFomel) F-Factor X Length UA <br /> .� .., <br /> Grade Ir <br /> Location of Ducts <br /> N„n�„ <br /> Duct Leakage Coefficient <br /> V <br /> 1.00 <br /> Sum of UA 147.71 <br /> Envelope Heat Load 7,238 Btu/Hour <br /> Figure 1. Sum of UA X AT <br /> Air Leakage Heat Load 4,503 Btu/Hour <br /> VolumeX 0.6 X ATX.018 <br /> Above Grade Building Design Heat Load 11,741 Btu/Hour <br /> Air Leakage+Envelope Heat Loss <br /> Building and Duct Heat Load 11,741 Btu/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 14,676 Btu/Hour <br /> Building and Duct Heat Loss X 1.40 for Forced Air Furnace <br /> Building an d Heat Loss X 1.25 for Heat Pump <br /> (07/01/13) <br />