1918 78TH PL SE 2017-08-28 - Laserfiche WebLink

Simple Heating System Size: WasF!!�gton State This heating system sizing calculator is based on the Prescriptive Requirements of the 2012 Washington State Energy Code(WSEC)and ACCA Manuals J and S This calculator will calculate heating loads only.ACCA procedures for sizing cooling systems should be used to determine cooling loads. The glazing(window)and door portion of this calculator assumes the installed glazing and door products have an area weighted average U-factor of 0.30. The incorporated insulation requirements are the minimum prescriptive amounts specified by the 2012 WSEC. 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, 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 Program at(360)956-2042 for assistance. Project Information Contact Information P ar12435 s Heating System Type: To see detailed instructions for each section,place your cursor on the word"Instructions". Design Temperature Instructions -- _-- – Design Temperature Difference(AT) 46 Lynnwood �_� AT=Indoor(70 degrees)-Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area(sq ft) 2;435 Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height(ft) 8:.5 20,698 Glazing and Doors U-Factor X Area = UA Instructions 0.30 131.40 Insulation Attic U-Factor X Area = UA Instructions R-49 0.026 996 25.90 �: Single Rafter or Joist Vaulted Ceilings U-Factor Area UA Instructions -� No Vaulted Ceilings in this project Above Grade Walls(see Figure.1) U-Factor Area UA Instructions0.056 2,500` 140.00 V R-z1 Floors U-Factor Area UA Instructions R-30 0.029 470 13.63 Below Grade Walls(see Figure 1) U-Factor Area UA Instructions No Below Grade WallsInIn this . r Slab Below Grade(see Figurei) F-Factor Length UA InstructionsNo Slab Below Grade in this project Slab on Grade(see Figure q F-Factor Length UA Instructions -_-..— 0.540 82:`•: 44.28 R-SO Perimeter Location of Ducts Instructions [ � _—_ __ _ �_. -- Duct Leakage Coefficient Unconditioned Space < 1_– 1.10 Sum of UA 355.21 Envelope Heat Load 16,339 Btu/Hour Figure 1 Sum ofUAXAT Air Leakage Heat Load 10,283 Btu/Hour VolumeX 0.6XATX.018 Above.Grade Building Design Heat Load 26,622 Btu/Hour "`""''^',«•,., Air Leakage+Envelope Heat Loss Building and Duct Heat Load 29,284 Btu/Hour Ducts in unconditioned space:Sum of Building Heat Loss X 1.10 Ducts in conditioned space:Sum of Building Heat Loss X 1 Maximum Heat Equipment Output 40,998 Btu/Hour Building and Duct Heat LossX 1.40 for Forced Air Furnace Building and Duct Heat Loss X 1.25 for Heat Pump (07/01/13)