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Customer Services
01494 482044

Collect in StoreOrder online & collect in store

Free Delivery Over 120* UK Mainland Excl Highlands

Nonfumo Flue Systems Limited
Carousel House, Wycombe Road, Stokenchurch, Bucks, HP14 3RP, UK Mainland (Excl Highlands).

Phone: 01494 482044

Fax: 01494 216158

Email: sales@fluesystems.com

Web: https://www.fluesystems.com/

It's Getting Busy Here! We Are Now Open 9am to 1pm on Saturdays. Plus Telephone Sales Lines Will Now Stay Open Until 6.00pm Monday to Thursday.

Combustion Air Vents

Regulation Change - Ventilation is not just needed for stoves over 5 kW and fires over 7 kW.

As well as the kW rating of the appliance affecting ventilation requirements, installers and suppliers must also take into consideration the air permeability of the property when fitting a vent for a heat producing appliance. Building Regulations give guidance on how to tell if you have a requirement for extra ventilation. It is unlikely that a dwelling constructed prior to 2008 will have air permeability of less than 5.0m³/(h.m²) at 50 Pa unless extensive measures have been taken to improve air-tightness. So if you are installing or supplying ventilation products you must check on air permeability first as extra ventilation will almost certainly be needed in newer properties - it’s no longer the case of "It’s a 5 kW stove or 7 kW gas fire so I don't need to provide ventilation".

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