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Manual JS

We offer Manual JS Load calculation services with fast turnaround and 24h Delivery Available! Over 20 years of experience and ACCA approved software.

Accurate Manual J calculations are crucial for optimal HVAC system performance. This standard is designed to estimate the heating and cooling needs of residential buildings by considering various factors such as square footage, insulation levels, window size and types, and local climate conditions which goes in much more detail than the outdated sqft formula which a lot of contractors use to size the equipment which leads to oversized and inefficient systems with shorter lifespan.
Manual S offers a crucial framework for determining the sizing of heating and cooling equipment. This manual focuses specifically on the selection and sizing of residential HVAC systems, ensuring that they operate efficiently and effectively under various conditions.
Get your Manual JS

Pricing

Our transparent pricing structure caters to homeowners and businesses of all sizes.

Room by room Manual J&S

Room by Room calculations are used when you’re adding mini-splits, as in this case, we need to know the individual room load and CFM. They can also be used when you plan to add duct design in the future, but you haven’t reached this stage yet. While a Room by Room design can be transitioned to a Manual D (Duct design), a Blockload Manual JS can’t, as it’s missing the individual room load.




Under 2000sqft: $140.00

Over 2000sqft: $7.00/sqft

Report Includes

●Manual J (Room by room Load Calculations)
●Manual S (Equipment Selection)

☆ ACCA Approved Manual JS
☆ ACCA Approved Software “Wrightsoft”
☆ Accepted in all 50 US states*

Please confirm with your Local Municipality what their requirements are.
Shorter form available upon request.

Delivery Time
3-4 business days (depending on the size of the project)
24h Delivery Available

Extras

Extra System/ Mini split head: $15

Express Delivery, Rescheck
Manual JS Sample Report
Download (Room by room) Sample Report

Blockload Manual J&S

Block load calculations are perfect for jobs where permits require a Manual J, but you’re only swapping the equipment. They make your life simple, and as we don’t have to design the whole house Room by Room, they’re more cost-effective.




Under 2000sqft: $70.00

Over 2000sqft: $30.00/sqft

What information is needed for Manual JS?

 

Room-by-room design
Floor plans that include the following information:
-Measurements (in feet) of all interior walls, including hallways and closets.
-Windows, skylights and exterior doors marked on the drawing and their size (WxH).
-Room names
-Ceiling height and marked vaulted areas (height of their low and high point or roof pitch).
-Insulation values of the ceiling, walls, and floors.
-Type of windows and their U value, if known.
-If doing mini splits, please list the areas they would cover and mention if you have a preferred location for them.
-Preferred brand of equipment.




Blockload design
Floor plans that include the following information:
-Measurements (in feet) of all exterior walls.
-Windows, skylights and exterior doors marked on the drawing and their size (WxH).
-Ceiling height and marked vaulted areas (height of their low and high point or roof pitch).
-Insulation values of the ceiling, walls, and floors.
-Type of windows and their U value, if known.
-Preferred brand of equipment.



If you don’t have official floor plans, you can always create a hand drawing (as shown on this drawing), but I urge you to double-check all measurements, as people often miscalculate the measurements. In this case, Graph paper will be your best friend.

If you don’t know something or don’t have a preference, I’ll make an educated guess or give you a recommendation.
Manual JDS Sample Report
Download (Blockload) Sample Report

What's needed?

Get familiar with the Requirements.

What information is needed for Radiant Design

Floor plans that include the following information:

  • Measurements (in feet) of all interior walls, including hallways and closets.
  • Windows, skylights, and exterior doors marked on the drawing and their size (WxH).
  • Marked bathtubs and stairs.
  • Room names
  • Ceiling height and marked vaulted areas (height of their low and high point or roof pitch).
  • Insulation values of the ceiling, walls, and floors.
  • Type of windows and their U value, if known.
  • Preferred brand of equipment.

If you don't have official floor plans, you can always create a hand drawing (as shown on this drawing), but I urge you to double-check all measurements, as people often miscalculate the measurements. In this case, Graph paper will be your best friend.


Example Drawing
Download Example Drawing (Room by room)

What information is needed for Radiant Design

Floor plans that include the following information:

  • Measurements (in feet) of all interior walls, including hallways and closets.
  • Windows, skylights, and exterior doors marked on the drawing and their size (WxH).
  • Marked bathtubs and stairs.
  • Room names
  • Ceiling height and marked vaulted areas (height of their low and high point or roof pitch).
  • Insulation values of the ceiling, walls, and floors.
  • Type of windows and their U value, if known.
  • Preferred brand of equipment.

If you don't have official floor plans, you can always create a hand drawing (as shown on this drawing), but I urge you to double-check all measurements, as people often miscalculate the measurements. In this case, Graph paper will be your best friend.

Example Drawing
What's needed?

Questions & Answers

Be informed what's included in the package and the project's requirements

What’s included in the Manual JS package??

A Residential Blockload or Room by Room Manual J (Load calculations) and Manual S (Equipment selection) design. The manuals are performed using the ACCA-approved software “Wrightsoft” and follow ACCA Manual JS standards.

What's the delivery time??

The delivery time is most often between 3-4 business days, depending on the size of the project. Once I review your file, I'll send you a price quote, which will include the delivery time, and it's guaranteed that I'll deliver on time or early. *The delivery time starts from the time the invoice is paid.

What software do you use??

I use the ACCA-certified “Wrightsoft” program, which I find to be the most accurate and detailed on the market.

What information is needed to start??

A drawing of the house with the size of ALL walls (just exterior if we’re doing a Blockload), and dimensions (WxH) of all windows, and exterior doors, as well as a filled Price Quote form. The form will contain questions such as equipment preference, construction details, and so on.

Can this be used to get a permit??

Yes, it can. Most jurisdictions require these calculations to obtain a Permit to start construction.

Can a Blockload be upgraded to Manual D (Duct design)??

No, a Blockload can’t be upgraded to a Manual D (duct design), as Manual D needs the individual room load requirements. If you plan to add a duct design in the near future, please place an order for a Room by Room Manual JS.

Price Quote

Ready to work with us? Send us your floor plans and we will review them and send you a price quote.

Price Quote