# HVAC Load Calculator: Manual J — BTU, AC, Tonnage & Heat Pump

> BTU, AC, Tonnage & Heat Pump (iPhone/iPad app by Yassine Rajallah.)

- Source: https://appshunter.io/ios/app/hvac-load-calculator-manual-j/id6824263129 (this page in markdown: same URL + `.md`)
- Developer: [Yassine Rajallah](https://appshunter.io/developer/1846864253)
- Category: Utilities, Business
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 39 MB
- Languages: American English
- Released: 2026-11-02
- Data updated: 2026-11-04

## What is HVAC Load Calculator?

HVAC Load Calculator helps contractors run a Manual J load calculation, convert loads to BTU and tonnage, and check AC, furnace and heat pump sizing on the job site.

Enter the home's details, get heating and cooling loads in seconds, and send your client a clean PDF report.

WHAT YOU CAN DO
- Calculate heating and cooling loads (BTU/h) for a home
- Convert loads to tonnage and size AC systems
- Size heat pumps and check capacity against the load
- Check equipment against the load before you quote
- Save jobs and reopen them on any visit
- Share a client-ready PDF report

BUILT FOR HVAC PROFESSIONALS
Contractors, estimators and technicians who need fast, reliable sizing numbers in the field.

Not affiliated with ACCA. Results are estimates for planning and should be verified before installation.

Terms of services: https://hvacflatratepricingsoftware.com/terms-of-service/
Privacy Policy: https://hvacflatratepricingsoftware.com/privacy-policy/
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| HVAC Load Calculator Yearly | $49.99 | per year |
| HVAC Load Calculator Monthly | $14.99 | per month |
| HVAC Load Calculator Quarterly | $39.99 | per 3 months |


## Is HVAC Load Calculator safe?

Not enough ratings yet to assess HVAC Load Calculator.

## Is HVAC Load Calculator legit?

HVAC Load Calculator: Manual J has limited verification signals. The AppsHunter Legitimacy Score for HVAC Load Calculator is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-11-02

No release notes.

## More apps by Yassine Rajallah

- [WriteVoice: Dictation & Notes](https://appshunter.io/ios/app/writevoice-dictation-and-notes/id6754170107)
- [HVAC Flat Rate Pricing Calc](https://appshunter.io/ios/app/hvac-flat-rate-pricing-calc/id6824038756)

All apps by Yassine Rajallah: https://appshunter.io/developer/1846864253

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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 2026-11-04.*