Heat-Load USA

ACCA Manual J load calculation - Manual S - Manual J HVAC - Manual J Calculation Service - Heat Load Calculation - Residential Load Calculation - Manual J Services - What is a Manual J - manual j hvac residential load calculation

- load calculation - Manual N - Commercial load calculation = HVAC ENGINEERS - HVAC CONSULTANTS

- ACCA Manual N Commercial load calculation - Manual D - Manual D calculation - Manual J & D Calculations

A quality HVAC Design yields a home comfort solution far superior then one where the ducts are laid out simply using the sq. ft./ton methodology.  A true HVAC design takes into account the orientation of the home, the zip code, elevation, summer and winter temperatures, humidity levels and much more. 

The goal of a quality HVAC design is total occupant comfort.  Human comfort is largely driven by three factors:  Temperature, humidity and noise. 

Let’s look at the last component for a minute  – how many homes have you been in where you can hear the HVAC system turn on? You can hear the ducts whistling, you can hear the noise of the air as it comes out of the registers and even some returns sound like freight trains. 

Controlling noise in addition to humidity is a key component to occupant comfort.  How do you know if you have a quality HVAC design? When the system is transparent to the occupant. They don’t know if it’s on or off. They don’t hear the return, or the supply. They don’t feel hot or cold. They don’t feel humid in the winter. AND…. They don’t want to turn down the thermostat down to 68 degrees. 

That… ladies and gentlemen is a QUALITY  - HVAC design AND install.
We can do the first part for you - the design.  The 2nd part - the install is up to you our your contractor. Our HVAC designs are designed to produce a transparent, efficient and comfortable occupant experience. Room by room and floor by floor - the temperatures are close to even and thus the homeowners are content. Our designs will give you the best possible system layout taking into account ALL the factors affecting the sizing of equipment and ducts  - not just square ft.

In our report you will get detailed duct layout, proper equipment placement and very important – the ideal equipment selection to match the individual needs this particular home or project. You don’t simply grab the closed box that says 2 tons. You carefully select the combination of heating, condenser, coil, air handler and blower that best fits and matches up with up the needs of that individual particular home. 

A system designed properly,  and INSTALLED properly will consistently yield a home with nationally accepted indoor design temperatures any time of the year.  In other words …. Occupant comfort and thus…. Customer happiness.

Our Quality HVAC design service is comprehensive and detailed. The report is up to 30 pages long and can be printed and submitted to your building department for permit approval.

The report is ACCA Manual J 8th Edition complaint and also Manual S compliant and finally - fully Manual D compliant.  We use the most advanced HVAC software on the market: Wrightsoft and our report and plans are easily understood by contractors, and building officials. 

Our reports are comprehensive and contain (at no extra charge): 

* Manual J - Summary

* Manual J - J1 Sort and long forms

* Components construction report

* Manual D Duct layout per floor clearly showing you the duct layout and size of ducts

* Friction rate and static pressure loss report

* Manual S certification 

​* ACCA Residential Examiner Report

* Equipment Selection Part numbers for condenser, coil, furnace, air handler

Our lead time is four business days and we have NEXT-Day service available.  Finally – we are certified by ACCA in quality HVAC Design principles so you know that you are using a company fully certified in a full HVAC Design.  We look forward to serving you over and over again.  Please feel free to call us for more questions at 973-544-6800.  

Quality​ ​​​​​​HVAC Design Services

Manual J, D and S

Call: 973-544-6800

Complete Professional HVAC Design including Manual J, Manual D and Manual S.

Quick Turnaround Guaranteed to Be Approved By Your Local or County Building Department*

 (*Certain restrictions apply. Contact us for more details)

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​​​ What Do We Need In Order To Prepare Your Manual J, D & S?

  • Floor Plan for each floor (including basement if applicable)

  • Sq ft of Windows on each side, on each floor

  • Sq Ft of doors on each side, on each floor

  • Address of property 

  • Any known insulation levels in the home

  • Location of equipment and ductwork  - Basement, Conditioned space, Attic Garage etc.  If more then one system, we need to know the coverage area and location of each HVAC system

  • Equipment - Furnace, Condenser and Coil Model numbers
  • Email all these to info@HeatLoadUSA.com. 

We will respond right away, and review what you sent us. If we are good, we will send you an invoice via PayPal. Pay that invoice and we will deliver your report within 48 hours. ​

               Questions? Call Us:   973-544-6800

                    ​Email:  Info@HeatLoadUSA.com




      What is Manual J, Manual D and Manual S?

Manual Jis the heat load calculation for the whole house

Manual D is the layout and sizing of your all NEW duct-work. This is typically only required when you are installing new ductwork, as in an addition, new construction etc. We layout each individual room in the house and required CFM. You tell us where you want the ducts and registers OR we lay them out for you.

Manual S is the selection of equipment based on the heat load of the house.  ONCE we have figured out the total heat load (Manual J) on the house, we will provide you the full AHRI (furnace model, condenser and coil numbers based on which line you you are using or tell us what you want to use and we will do our best to make that match).

What if I Only Need Manual J & S?   No problem. We can do that too! Unless you are installing new ductwork, you only need a Manual J and occasionally, Manual S. 

Do You Provide Next Day Service? In most

Does Your Work Conform to ACCA Requirements? Absolutely! All the work we do confirms to ACCA, and we stand behind our heat load and duct sizing reports. We guarantee that it will pass your local building inspections. You provide us the necessary drawings of the home, and equipment you want to us.  Also,  some townships may require additional licensing/certifications that are outside our scope of work. 

Questions?  Call 973-544-6800