HVAC Residential Load Calcs Downloads & RevenueHVAC Residential Load Calcs · App Store
HVAC Residential Load Calcs is #182 in Business Paid in United States and charting in 2 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
HVAC Residential Load Calcs update history & changes
Last change · 5 events since 24 Aug 2010Full timeline ↓Full timeline · 5 events
- 📈HVAC Residential Load Calcs entered the top 100Top Paid · Business · US
- 📈HVAC Residential Load Calcs charting in a new countryUnited States
- 🆕HVAC Residential Load Calcs first spotted by AppInsider#69 in Top Paid · Business · Canada
- 📦HVAC Residential Load Calcs version 6.011. Fixed issues with screen scrolling all over the place on iOS versions 18.x and 26.x.
2. Added a Share button so you can now text, email, and download reports.
3. Updated help.
4. Optimized for iOS 26. - 🆕HVAC Residential Load Calcs released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
HVAC Residential Load Calcs on the App Store
App details
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| BusinessPaid | #182 | |
| BusinessPaid | #161 |
Apps near HVAC Residential Load Calcs on the chart
Business Paid, around #182.
Ratings
App Store, worldwide.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about HVAC Residential Load Calcs
From the 20 most recent App Store reviews in the US.
Mixed (50% of recent reviews give 4–5 stars). People like it for being useful, and being easy to use. The main complaints are about price and subscriptions. Recent reviews are more negative than earlier ones.
What people like
- Useful: “It's been very useful and accurate”
- Ease of use: “So I'm feeling pretty good about the results from this economical and easy-to-use program”
- Design: “The screen reports and pie charts look good and they impress my residential customers too”
- Features & content: “Also, a great tool for field trouble”
Common complaints
- Price & subscription: “This has been a waste of money for me”
About HVAC Residential Load Calcs
This is one of the longest running HVAC Manual J8 cooling and heating load calculation apps on the market today. See why tens of thousands of engineers, technicians, and architects have licensed our software for their HVAC engineering needs.
(For full online help, click here: http://bit.ly/1GlRulY.
For training webinar, click here: http://bit.ly/1IHn7nA)
This app now includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539.
This app allows you to perform detailed block and room-by-room heating and cooling loads for residential buildings out in the field, by taking advantage of the simplicity and power of the iPhone.
This app was designed by Carmel Software Corporation, a 25-year old software design firm specializing in engineering analysis software applications. We are not just 1 person designing mobile apps out of a bedroom. We are a team of software developers and engineers with over 50 years combined software and engineering design experience. In fact, our software powers the analysis capabilities of major Autodesk (The makers of AutoCAD) software tools such as Autodesk Revit.
The following is just a small sample of the features included in this app:
1. Calculations based upon abridged ACCA Manual J8 calculations (This is not an ACCA-approved app. For our ACCA-approved iPad app, search for the HVAC ResLoad-J app on the app store)
2. Includes a 1000+ world-wide city weather database
3. Includes data for 100s of construction types for walls, roofs, floors, doors, windows, skylights, ceilings, and more
4. Allows you to create and store an unlimited number of projects
5. Allows you to create an unlimited number of rooms and view individual loads and airflows for those rooms
6. Allows you to specify an unlimited # of opaque types (ie – doors, walls, roofs, floors, ceilings), window types, and skylight types for each building
7. Allows you to instantly view total heating and cooling load results as you update input data
8. Allows you to view comprehensive cooling and heating load breakdown reports including breakdown by opaque load, window load, skylight load, infiltration load, ventilation load and internal load contributions
9. Opaque inputs include opaque type, opaque construction number, dimensions, and opening areas
10. Window inputs include window type, internal and external shading type, overhang dimensions, window area, and more..
11. Additional input types include # of people, # of bedrooms, ventilation airflow, and more..
12. Includes 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
13. 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 ca