# NATE ResLoad-J — ACCA-Approved HVAC Load Calcs

> ACCA-approved residential HVAC load calculation app for iPad. (iPhone/iPad app by Carmel Software Corporation.)

- Source: https://appshunter.io/ios/app/nate-resload-j/id1017417896 (this page in markdown: same URL + `.md`)
- Developer: [Carmel Software Corporation](https://appshunter.io/developer/317970398)
- Category: Business, Productivity
- Price: $169.99
- Rating: 2.30/5 from 3 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 26 MB
- Languages: American English
- Released: 2015-07-16
- Data updated: 2026-06-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/nate-resload-j/id1017417896/reviews.md

## What is NATE ResLoad?

The NATE ResLoad-J app was developed by Carmel Software for North American Technical Excellence, Inc. (NATE). 

This is an ACCA-approved Manual J8 residential load calculation app for the Apple iPad. It allows engineers, contractors, and technicians to perform field-based cooling and heating load calculations on residential and small commercial buildings. Users are then able to email PDF reports to customers and local building officials. Reports produced by this app will be acceptable by all municipalities/states (including Florida and Massachusetts which recently passed laws requiring contractors to submit load calcs from ACCA-approved software.) 

For training webinar schedule, go here: http://bit.ly/SaHmPS

For online help and training videos, go here: http://bit.ly/1PhqlDi

Bonus: The NATE ResLoad-J app now includes our popular HVAC Equipment Locator app built right in! Click here for details about that app:  http://bit.ly/1a2RskH

The NATE ResLoad-J app allows users to create unlimited projects and perform both block and room-by-room loads. The app includes weather data for 1000s of cities throughout the world and construction data for 100s of wall, floor, roof, ceiling, and window types. The user is also able to model detailed appliance, duct, infiltration, and ventilation loads.

This app was specifically designed for the Apple iPad, taking advantage of the larger screen, rotating user interface, and other functionality unique to the iPad.

Other features include:

1. Includes a 1000+ world-wide city weather database

2. Allows you to create and store an unlimited number of projects. You can also re-use existing projects as templates for new projects. 

3. Includes data for 100s of construction types for walls, roofs, floors, doors, windows, skylights, and ceilings.  

4. Allows you to specify an unlimited # of building envelope types (i.e. – doors, walls, roofs, floors, ceilings), window types, and skylight types for each building. 

5. Allows you to input individual home appliance information. 

6. Allows you to instantly view total heating and cooling load results as you update input data. 

7. Allows you to view comprehensive cooling and heating load breakdown reports including breakdown by envelope load, window load, skylight load, infiltration load, ventilation load and internal load contributions. 

8. Also performs room-by-room cooling and heating load calc analysis 

9. Includes the ability to display a wide variety of on-screen reports including checksum reports (ie – BTUh/SqFt, SqFt/Ton, etc.), complete heating and cooling load breakdown reports, and even graphically-pleasing pie charts showing cooling and heating load breakdowns. These reports can be converted to PDFs and emailed from right within the app. 

10. Includes the ability to display a comprehensive HTML report that you can email to yourself or others, and it also includes a spreadsheet attachment that you can open in Excel to create customized reports. 

11. Includes the ability to display units in either English (IP) or Metric (SI).  

The benefits of using this app are numerous including: 

1. Great for use out in the field. Quickly size heating and cooling equipment, show the client, then email the results back to your office for further analysis. 

2. Show off your advanced on-screen reports to clients convincing them you are using cutting-edge technology. 

3. Save time by inputting information in the field and then returning to your office to perform more in-depth analysis. 

4. Submit reports to local municipalities that require ACCA-approved Manual J8 residential load calcs for equipment replacement.

## Key features

- ACCA-approved Manual J8 calculations
- Field-based load calculations
- Emailable PDF reports
- Unlimited project creation
- Global weather database
- HVAC Equipment Locator included

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/nate-resload-j/id1017417896/reviews.md

### 5/5 — Awesome service

*2019-04-04, version 3.0*

So I was unable to open the app.   I called customer support and left a message.    Just got a text from them saying they were trying to call about my issue.   Had a missed call and hour ago from them.   Spoke with Stephen and he told me what to do to fix it and I am thrilled it’s now working.    Recommend this app for all HVAC companies.  Thank you Stephen.

### 1/5 — This App won’t open anymore

*2019-03-22, version 3.0*

This app worked well for me for some time. I downloaded the latest update and now it crashes before it even opens. It won’t go pass the opening graphics screen.

### 1/5 — The app will not open

*2018-11-08, version 3.0*

I’ve had this app for months now. I’ve had issues with it in the past and still have not received a return message from support. Currently the app will not open. It begins to then goes back to home screen. DO NOT BUY THIS APP

## Frequently asked questions about NATE ResLoad

### What is NATE ResLoad-J used for?

NATE ResLoad-J is an ACCA-approved Manual J8 residential load calculation app designed for the Apple iPad. It enables users to perform field-based cooling and heating load calculations for residential and small commercial buildings.

### Can I email reports generated by NATE ResLoad-J?

Yes, NATE ResLoad-J allows users to email PDF reports directly to customers and local building officials. These reports are accepted by municipalities, including those with specific requirements for ACCA-approved software.

### Does NATE ResLoad-J support multiple projects?

Yes, the app allows you to create and store an unlimited number of projects. You can also reuse existing projects as templates for new ones, streamlining your workflow.

### What kind of data does NATE ResLoad-J include?

NATE ResLoad-J includes weather data for thousands of cities worldwide and construction data for hundreds of wall, floor, roof, ceiling, and window types. It also models appliance, duct, infiltration, and ventilation loads.

### Is NATE ResLoad-J available on devices other than iPad?

Based on the provided information, NATE ResLoad-J was specifically designed for the Apple iPad, taking advantage of its larger screen and unique functionalities. It is listed as supported on 'ipad' devices.

### How often is NATE ResLoad-J updated?

The latest version of NATE ResLoad-J is 4.2, and it was last updated on March 6, 2025. This indicates a recent update, suggesting ongoing development and support.

### What is the price of NATE ResLoad-J?

NATE ResLoad-J is a paid application with a price of $169.99. There are no in-app purchases mentioned, and the app is not ad-supported.

### What is the user sentiment for NATE ResLoad-J?

The app has a rating of 2.3 stars from 3 ratings. This rating suggests that user satisfaction may be mixed or that there are areas for improvement based on current user feedback.

## Version history (last 5 releases)

### 4.2 — 2025-03-06

1. Optimized for iOS 18
2. Added "Share" button so can send reports via email, text, and print.
3. Updated help

### 3.9 — 2021-11-29

1. Sync projects to and from the cloud so you can share your projects with other users in your company and also with other devices you may own.
2. Can sort project list by alpha order and date created
3. Added new Input Reports that includes all user inputs for a project
4. Updated the user interface for iOS 15 and latest iPad models
5. Displays properly in "Dark Mode"
6. Updated help

### 3.7 — 2020-08-17

1. Updated the app launch screen per new Apple iOS guidelines.
2. Updated Google Analytics and Crashlytics

### 3.0 — 2018-07-11

1. Improved reporting
2. Fixed help link
3. Fixed crashing issues occurring with iOS 11
4. Updated Equipment Locator

### 1.0 — 2015-07-16

No release notes.

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All apps by Carmel Software Corporation: https://appshunter.io/developer/317970398

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*