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GB Gas Ventilation Calculator

GB Gas Ventilation Calculator

BS5440 Calculator

0 ratings
4 reviews
🔧 Utilities
💼 Business
$3.99

Details

Released
March 26, 2011
Updated
August 15, 2026

Features

Developer

GB-GAS.CO.UK
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GB Gas Ventilation Calculator screenshot #1 for iPhone
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About

Calculate ventilation requirements for gas appliances, including open flued, room sealed, and flueless types. Determine free air area for existing and new vents to ensure suitability for appliances. Simplifies complex calculations by reading appliance data directly.

✓Ventilation calculations for gas appliances
✓Supports open flued, room sealed, and flueless types
✓Calculates for multiple appliances in one room
✓Determines free air area of vents
✓Reads appliance data directly
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What's New in GB Gas Ventilation Calculator

6

August 15, 2026

Updates to the user interface, ventilation requirements have not changed.

User reviews

Most RecentHighest RatedLowest Rated

Multiple rooms

What's going on with multiple rooms it won't do anything I cannot enter anything. This was the sole purpose for me buying this app and it does Nothing ????? I have been robbed
DDragon12345

GB ventilation calculator

Yes it will not return from multiple room screen, I'm not very impressed not with the money, can I have mine back please
Wwhereo0

Rubbish

Did not work when I bought it Still does not work after First update
PPeter.ellames

Not that good!

I'm abit confused the app won't return from multiple room screen?? And won't let me input anything! Am I missing something?
FFuzzybolocks

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FAQ

What is the price of GB Gas Ventilation Calculator?

GB Gas Ventilation Calculator is a paid app priced at $3.99. This one-time purchase grants you access to all its features without recurring fees.

Does GB Gas Ventilation Calculator have ads?

No, GB Gas Ventilation Calculator is ad-free. You can use the application without any interruptions from advertisements.

What devices is GB Gas Ventilation Calculator compatible with?

GB Gas Ventilation Calculator is available for iPhone, iPad, and iPod. It is designed to run on Apple's mobile operating systems.

How often is GB Gas Ventilation Calculator updated?

The latest version of GB Gas Ventilation Calculator is version 5, which was last updated on July 24, 2020. Updates typically address bug fixes and feature enhancements.

What is the age rating for GB Gas Ventilation Calculator?

GB Gas Ventilation Calculator has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

Can GB Gas Ventilation Calculator calculate ventilation for multiple gas appliances in one room?

Yes, GB Gas Ventilation Calculator provides the option to calculate ventilation requirements when more than one appliance is fitted in a room. This ensures accurate calculations for complex installations.

How does GB Gas Ventilation Calculator simplify calculations?

GB Gas Ventilation Calculator eliminates the need for manual formulas and calculations. You can simply read the heat input from the appliance data badge and press calculate.

What types of gas appliances does GB Gas Ventilation Calculator support?

GB Gas Ventilation Calculator supports open flued, room sealed, and flueless gas appliances. It also allows you to calculate the free air area of existing and new ventilators.