Manual J, D & S — the complete HVAC design package.
One submission. One price. Three permit-ready reports. Save time and get the full ACCA design package in a single order.
What is Manual J, D & S?
Think of the Manual J S & D as the architectural plans for your HVAC system(s). Designed properly and installed as designed, will result in years of greater comfort, greater energy efficiency, fewer mechanical breakdowns, and lower utility bills. You will be spoilt!
Manual J S & D incorporates a load calculation, correct equipment selection and finally, lays out the ductwork, sizes the ductwork correctly along with registers. This ensures that the right amount of heating and cooling gets to the right room.
Small room, fewer ducts and smaller ducts. Large room with lots of windows? No problem, all have been accounted for.
The complete HVAC design package combining Manual J (load calculation), Manual S (equipment selection), and Manual D (duct design) is code nationwide. This is the most common requirement for new construction permits and ENERGY STAR / HERS certification. Ordering together saves time and ensures all three reports are internally consistent.
What we need to prepare your Manual J,D & S
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Floor plans with room dimensions and ceiling heights for every level
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Window & door schedule — size, orientation (N/S/E/W), U-factor, and SHGC
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Full project address (for local climate and design temperature data)
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Duct location: conditioned space, attic, crawlspace, or unconditioned basement
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Known wall, ceiling, and floor insulation R-values or construction assembly details
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Foundation type: slab, crawlspace, or basement with insulation specs
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Equipment brand and efficiency (AFUE/SEER)
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# of HVAC systems being installed and areas/rooms each system will be serving
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Email all these to Info@HeatLoadUSA.com
Why HeatLoad USA?
Since 2008, we've prepared thousands of Manual J reports for HVAC contractors and builders across all 50 states. Our reports are accurate, code-compliant and accepted by building departments nationwide.
Certified by ACCA we are one of the few firms qualified to prepare both residential (Manual J) and commercial (Manual N) load calculations.