Extraction & VentilationKLS have been designing, manufacturing and installing commercial ventilation systems for many years our broad background knowledge of commercial gas regulations, Environment health requirements mean we are able to design a system that works first time and every time.
The purpose of a kitchen extraction system is to remove heat and grease generated from the cooking equipment underneath it, however it also serves a much wider role. The use of gas cooking equipment creates carbon monoxide gases from the combustion process, warewashing equipment and boiling generates steam all of which need to be removed from the working environment.
To ensure a safe and comfortable working environment for staff, commercial kitchen extraction systems need to address a number of key areas:
Ventilation needs to be provided to ensure sufficient clean, cool air, furthermore the supply of air must be sufficient for complete combustion of gas burning equipment. The gases then generated by the combustion process needs to be effectively removed from the working environment and expelled to a safe exterior location. The removal of these gases should take place as close to the generating source as possible. Any system should be effectively kept clean from grease and fat residues to prevent any possible fire hazard or reduce the effectiveness of the system see KLS Steam Cleaning.

An important and often over looked part of the equation is Make Up Air.
As air is extracted from the kitchen environment this needs to be replaced, as a general rule approximately 85% of the total air needed should be provided by mechanical ventilation with the remainder drawn from surrounding areas. In some kitchens it may be acceptable to provide the replacement air by means of ventilation grilles in walls, doors or windows, if this method is used then some form of fly screen should be used to prevent pest problems.
Since 2001 it has been a requirement for all new and some existing installations where modifications or new equipment is installed must have a gas interlocking system to comply with BS6173 installed.
The installation of an interlock system will prevent the gas from being turned on until the ventilation system is fully operational. An interlock system uses an air pressure sensor to detect when the canopy is operational and working with sufficient air flow to comply with the regulations, once these conditions are met the system will allow a normally closed gas solenoid valve on the incoming gas supply to open. While the air flow continues to meet the requirements gas equipment can be used normally, if the airflow falls below the required level or the ventilation is switched off the gas flow will be automatically switched off.
Ever stricter planning restrictions can sometimes be frustrating and potentially prevent the opening of new Food businesses. KLS are able to propose solutions to almost every planning restriction whether it be Odour Control/Noise Reduction etc.
KLS work closely with www.purifiedair.co.uk the industry specialist for Odour control equipment.
These systems include:
Extraction System Maintenance Of course as your system ages KLS engineering department are on hand and carry a wide range of commercial extraction fan motors, speed controllers in-stock for quick and efficient turn around at competitive prices.
KLS can also manufacture appropriate cladding or coverings for your ventilation system. Click here for more details.