These fire blankets are rated to generally be set up with zero clearance, which means they are often touching building elements and don’t need a rated enclosure. and be safe from hearth. Height: Generally, the height from the ground on the underside of the Cover should measure 2000-2100mm. UL 2221 https://commercialkitchenextracts13445.verybigblog.com/36042404/fascination-about-commercial-kitchen-extract-systems