Extraction - Gas Interlock Systems

Where gas cooking appliances are used, all extraction systems in commercial catering establishments must have a gas interlocking system in place to comply with BS6173 and IGEM/UP/19, and this should be installed by a qualified gas engineer. Gas interlock systems prevent the gas supply from being turned on until ventilation is fully operational. Gas interlock systems such as the Merlin CT1200S use an air pressure sensor which detects when the canopy is working correctly with sufficient air flow. Once this is achieved the gas solenoid valve will open and cooking appliances can be used.

Here at Cater-Kwik we are able to offer a variety of gas interlock systems to suit the needs of any professional kitchen. We are also able to offer expert impartial advice, site surveys, design and installation for commercial extraction systems. If you are in any doubt as to your gas interlocking or extraction requirements please don't hesitate to contact our team on 01229 480001.

If you need any help or guidance, please complete the short questionnaire here. One of our commercial extraction experts will review and get in touch.


For detailed information and guidelines on ventilation and gas interlocking systems in commercial kitchens, please refer to this recognized HSE Kitchen Ventilation Document.