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Home My WebLink AboutBLD2022-00002-03- Energy WorksheetSimple Heating System Size: Washington State Project Information Contact Information Heating System Type: To see detailed instructions for each section, place your cursor on the word "Instructions". Design Temperature Instructions Design Temperature Difference (∆T)45 ∆T = Indoor (70 degrees) - Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area (sq ft)1,536 Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height (ft)9.0 13,824 Glazing and Doors U-Factor X Area = UA Instructions 0.30 343 102.90 Skylights U-Factor X Area = UA Instructions 0.50 0 --- Insulation Attic U-Factor X Area = UA Instructions 0.026 1,536 39.94 Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA Instructions 0.027 0 ________ Above Grade Walls (see Figure 1)U-Factor X Area UA Instructions 0.056 1,215 68.04 Floors U-Factor X Area UA Instructions 0.025 1,536 38.40 Below Grade Walls (see Figure 1)U-Factor X Area UA Instructions ---0 --- Slab Below Grade (see Figure 1)F-Factor X Length UA Instructions ---0 ________ Slab on Grade (see Figure 1)F-Factor X Length UA Instructions ---0 ________ Location of Ducts Instructions Duct Leakage Coefficient 1.00 Sum of UA 249.28 Envelope Heat Load 11,217 Btu / Hour Sum of UA X ∆T Air Leakage Heat Load 6,718 Btu / Hour Volume X 0.6 X ∆T X .018 Building Design Heat Load 17,936 Btu / Hour Air Leakage + Envelope Heat Loss Building and Duct Heat Load 17,936 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 22,420 Btu / Hour Building and Duct Heat Loss X 1.40 for Forced Air Furnace Building and Duct Heat Loss X 1.25 for Heat Pump 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. Lot 105 - Rose 2 Car Left 281 Puget Loop Road Port Ludlow Associates LLC Cliff Obrien 360-437-8242 Above Grade Below Grade Figure 1. All Other Systems Heat Pump (07/01/13) RECEIVED BY DCD 12/29/21 RECEIVED BY DCD 12/29/21 RECEIVED BY DCD 12/29/21 RECEIVED BY DCD 12/29/21 RECEIVED BY DCD 12/29/21 RECEIVED BY DCD 12/29/21 RECEIVED BY DCD 12/29/21 RECEIVED BY DCD 12/29/21 RECEIVED BY DCD 12/29/21