Gas Ventilation Calculator

"Gas Ventilation Calculator" is an easy-to-use app designed to calculate required ventilation sizes for domestic gas appliances up to 70kW. It supports flueless, open flue, and room sealed appliances, as well as multiple rooms and appliances. Features include an extractor fan performance calculator, a vent size calculator, and guidance on regulations to ensure safe installation. Get quick and reliable calculations for effective gas ventilation.