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| Commercial  Ventilation Engineers and Contractors • Design • Manufacture • Installation • Maintenance | |||
| Air Supply SystemsFiltered make-up air is an essential component for the correct functioning of any kitchen ventilation system, and is also a legal requirement for both HVCA Specification DW/172 and CORGI compliance. 
 Heating (tempering) of the supply air needs to be considered as part of the installation process and, subject to the availability of services on-site, LPHW and/or electric heating may be used. 
 Keeping the kitchen under negative pressure prevents cooking odours spreading outside kitchens. | 
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