HVAC Quick Load6.2

The HVAC Quick Load is the one and only rule-of-thumb HVAC heating and cooling load application for the iPhone and iPad.

This app performs rule-of-thumb HVAC cooling and heating load calculations for many types of commercial, industrial, institutional, and residential buildings. It allows you to quickly calculate the total required cooling and heating loads (in BTU/hr or Tonnage) and air flows (CFM or L/s) by inputting just the building type, total square area and number of people.

You can email all of the inputs and results to any email address. In addition, the email includes an Excel spreadsheet attachment from which you can perform more extensive calculations.

The basis of the calculations for this utility come from various authoritative HVAC texts that list average cooling and heating load values per square foot for many building types.

All values can be displayed in English (IP) and Metric (SI) units.

The following is a sample of some of the types of buildings that can be modeled:

1. Cocktail Lounges, Bars, Taverns, Clubhouses
2. Computer Rooms
3. Dining Halls, Lunch Rooms, Cafeterias, Luncheonettes
4. Hospital Patient Rooms, Nursing Home Patient Rooms
5. Jails
6. Kitchens
7. Libraries, Museums
8. Malls, Shopping Centers
9. Medical/Dental Centers, Clinics, and Offices
10. Nightclubs
11. Offices, Commercial
12. ..... and many more

This app is great for use out in the field to quickly analyze the cooling and heating properties of a building. However, please note, that it is by no means a substitute for rigorous heating and cooling load calculations, and HVAC equipment and materials should not be selected based upon the results from this application.

We also offer the following additional HVAC applications for the iPhone and iPad:

1. HVAC Duct Sizer
2. HVAC Pipe Sizer - Gas Low Pressure
3. HVAC Pipe Sizer - Gas High Pressure
4. HVAC Pipe Sizer - Liquid
5. HVAC Pipe Sizer - Steam
6. Steam Tables
7. Psychrometric Plus
8. Psychrometric LT
9. HVAC Pipe Sizer Plus
10. HVAC Pipe Sizer Gas Plus
11. HVAC Toolkit
12. HVAC Toolkit Ultimate
13. HVAC Residential Load Calcs
14. HVAC Load Plus
15. HVAC Equipment Locator
16. ASHRAE Duct Fitting Database
17. ASHRAE 62.1 Ventilation Load Calcs
18. HVAC Psych HD
19. HVAC ResLoad-J
20. HVAC Residential Load Calcs HD

Version History 1. A modernized interface built around Apple's latest UI/UX guidelines, including a full iPad layout.
2. Reports can be sent as PDF, CSV (Excel), and HTML and by email, text message, or any other Share option.
3. A color picker lets you choose the color of the calculated output values.
4. Fully updated and formatted help.
5. Many smaller refinements throughout. 6.2 Sep 20 1. Added a Share button to the iPhone and iPad versions of the app, so you can now text, email, and download reports.
2. Updated help.
3. Optimized for iOS 26. 5.4 Jan 6 1. Added "Share" button to iPad version. 5.2 08/14/2025 1. Fixed bugs that occur on iOS 18.1
2. Updated help 4.94 12/11/2024 1. Optimized for iOS 17 and iPhone 15
2. Updated help 4.8 02/02/2024 1. Updated help
2. Optimized for latest iOS 16 and iPhone 14 4.5 02/27/2023 1. Optimized for iOS 15 and iPhone 13
2. Fixed small user interface issues
3. Updated help 4.1 10/22/2021 1. Updated Google Analytics and Crashlytics 3.9 07/28/2020 Updated the app launch screen per new Apple iOS guidelines. 3.8 06/15/2020 1. Fixed issue with not displaying properly in iOS 13 "dark mode" 3.6 11/06/2019 1. Updated UI for iOS 13 and iPhone 11
2. Updated help 3.5 09/26/2019 1. Updated to super retina display to accommodate the iPhone X and later phones.
2. Updated help 3.0 10/10/2018 1. Update for iOS 11
2. Updated help 2.0 12/14/2017 1. Optimized for iOS 9
2. Includes updated HVAC Equipment Locator module with global search, maintenance alerts, and more
3. Also, includes fixes for viewing photos and documents in the HVAC Equipment Locator module 1.7 11/14/2015 1. Added HVAC Equipment Locator functionality 1.6 04/09/2015 1. Updated launch image
2. Updated help 1.5 12/04/2014 1. Updated for iOS 8
2. Fixed numerical formatting issues due to iOS 8 1.4 09/30/2014 1. Converted to universal app (works on iPhone and iPad)

2. Updated help 1.3 03/10/2014 1. Added emailing capabilities so the user can now email all inputs and results. In addition, a spreadsheet is attached to the email so the user can open it in Excel and perform more customized calculations.

2. Updated the help

3. Confirmed works with iOS 4 1.2 06/09/2011 1.0 04/14/2010