Commercial kitchen extraction systems are a major fire risk. Proper design, protection and maintenance are essential.. Kitchen Extraction Fire Risk Grease laden ductwork is one of the highest fire risks in commercial buildings. Kitchen fires that enter the extraction system can spread rapidly. Fire Protection Requirements Ductwork fire resistance matching building compartmentation Fire dampers at compartment boundaries Grease filtration before fan (minimum baffle or mesh type) Automatic suppression within the hood and ductwork Suppression Systems Wet chemical systems (ANSUL, Amerex) β industry standard Automatic activation linked to detection Manual release at exit point from kitchen Gas and electrical interlock on activation Maintenance Requirements Ductwork cleaning frequency based on use (TR/19 guidance) Quarterly suppression system inspection and test Annual comprehensive system service Cleaning certificates retained for insurance For kitchen fire safety, contact Magnus Opifex. Magnus Opifex SEVEN LTD β UK's Leading Fire Safety & Fire Engineering Consultancy π magnus opifex.co.uk π +44 7486 691724 βοΈ office@magnus opifex.co.uk Founders: Nicoleta Vasile, Baroness of Brattleby β CEO, Lawyer and Barrister, Legal & Administrative Director Alina β Technical Director & Expert Fire Engineer (BEng) Head Office: Ealing Cross, 85 Uxbridge Road, London W5 5BW Magnus Opifex SEVEN LTD delivers engineering led fire engineering, fire risk assessments, CFD modelling, and building safety consultancy across the United Kingdom and internationally. With over 20 years of combined experience and a UK portfolio spanning healthcare, residential and infrastructure, we bring truly engineered solutions with a personal touch. Β© 2026 Magnus Opifex SEVEN LTD. All rights reserved.