# Boiler Efficiency & Fuel — Boiler Efficiency and Fuel

> Boiler Efficiency and Fuel (iPhone/iPad app by Shanghai Sheyuan Network Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/boiler-efficiency-and-fuel/id6761745702 (this page in markdown: same URL + `.md`)
- Developer: [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858)
- Category: Utilities
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: English
- Released: 2026-04-08
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/boiler-efficiency-and-fuel/id6761745702/reviews.md

## What is Boiler Efficiency & Fuel?

Are you burning more fuel than you should? High stack loss means wasted money and excess emissions. This calculator shows exactly what your boiler costs to run and where efficiency is lost.

Enter boiler output in HP or MBH, fuel type (natural gas, propane, fuel oil, coal), fuel cost, and thermal efficiency. Calculates input BTU per hour, fuel consumption rate, annual fuel usage, annual operating cost, and stack loss percentage.

FUEL TYPES SUPPORTED:
- Natural gas (100,000 BTU/therm)
- Propane (91,500 BTU/gal)
- Fuel oil #2 (140,000 BTU/gal)
- Coal (12,000 BTU/lb)

KEY FEATURES:
- Annual operating cost projection
- Stack loss percentage
- Fuel consumption rate
- Works completely offline
- No account or login required

Built for boiler operators, facility managers, and HVAC engineers.


## Version history (last 3 releases)

### 1.0.3 — 2026-06-27

Added a More Pro Tools section to discover related field calculators.

### 1.0.2 — 2026-04-14

Bug fixes and performance improvements.

### 1.0.1 — 2026-04-08

No release notes.

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All apps by Shanghai Sheyuan Network Technology Co., Ltd.: https://appshunter.io/developer/1560626858

## Related topics

[boiler efficiency](https://appshunter.io/ios/topics/boiler-efficiency)

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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 2026-07-08.*