order to provide a safe and comfortable working environment,
commercial kitchen extract systems need to address a
number of key areas. For the comfort of those working
in the kitchen, 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 gasses then generated
by the combustion process need to be effectively removed
from the working environment and expelled to a safe
exterior location. The removal of these gasses 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.
• Kitchen extract design and installation
• Kitchen extract canopies
• Kitchen extract filtration systems
• Kitchen extract ductwork
Coolstream Ventilation offers a straightforward and
professional introductory process. We meet the client
or architect to discuss the requirements and site visit
the premises, followed by the provision of proposed
scheme drawings, including full filtration systems that
are required and odour control. We attend design meetings
and liaise with the architect, structural engineers,
other services, developer, environmental health officer
etc. Ultimately we provide a quotation for the installation.
Kitchen Ventilation Features
• Internal environment is improved
• External odours are prevented through filtration
• Input ventilation provides respite from
• Make up air system to balance the extract
• Health risks are reduced
• Fire risks are reduced
• Internal extract canopies to suit any kitchen
Gas Supply Regulations
All new and some existing installations where modifications
or new equipment is being installed must have a gas
interlocking system to comply with BS6173.
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 or current monitoring to detect when
the canopy is operational and working with sufficient
air flow to comply with the regulations. When 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, but if the airflow
falls below the required level or the ventilation is
switched off the gas flow will be automatically switched
Coolstream Ventilation supplies and installs commercial
gas kitchen systems that fully comply with BS6173, with
all gas components and catering equipment approved by
a commercially registered Gas Safe Register (previously
Corgi) installation engineer.
Kitchen Extract Ductwork
Coolstream Ventilation installs kitchen extract ductwork
systems to suit all clients requirements. Ductwork systems
can be manufactured from mild steel and fully welded
with angle iron flanges or galvanised with mezz flanges.
All our ductwork is manufactured to the HVCA recommended
specification DW 172.
We also provide suitable access doors for system cleaning
and fire rated ducting if required.
Stainless Steel Wall
Stainless steel wall cladding is ideal for areas which
are directly subject to high temperatures, for example
behind cooking ranges and under extract canopies. Also
very easy to clean and fully EHO compliant, stainless
steel sheeting can be tailored to suit most cooking
Coolstream Ventilation can supply and install stainless
steel cladding beneath kitchen extraction canopies,
or anywhere else where it might be required.