Last edited 29 Jun 2021

Main author

BSRIA Institute / association Website

Atmospheric boiler

The Illustrated Guide to Mechanical Building Services, Third Edition (BG 31/2017), by David Bleicher, published by BSRIA in 2017, states in relation to atmospheric boilers: ‘Combustion gases rise up the flue by convection and combustion air is entrained from around the boiler. No fan assistance is provided. Consequently, atmospheric boilers are very quiet in operation. The heat exchanger is typically made up of cast iron sections.’


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