Published at Tuesday, 15 January 2019. Kitchen Window and Ventilation Hood. By Ulf Madsen.
Here’s the new IRC provision, which is found in section M1503.4: “Exhaust hood systems capable of exhausting in excess of 400 cfm shall be provided with makeup air at a rate approximately equal to the exhaust air rate. Such makeup air systems shall be equipped with a means of closure and shall be automatically controlled to start and operate simultaneously with the exhaust system.
Kitchen windows present a few challenges. The windows all may not match; maybe there are casements over the sink, large double-hungs in the eating area, and a glass door to the mudroom. Go with what’s practical in each case, tying the treatments together with material or color, or a common trim or stencil. Ann Wallace of Prairie Textiles suggests bottom-only café curtains over the sink, for example, with full-length curtains in the eating area, and a panel (held by rods at the top and bottom) for the window in the door.
Range hoods have at least one thing in common with combustion appliances: they also require makeup air, although the GE instructions fail to note that fact. So why do the instructions refer to the need for providing makeup air for furnaces and water heaters — but fail to inform installers that range-hood fans also need a source of makeup air?
Any content, trademark’s, or other material that might be found on the Acaysha website that is not Acaysha’s property remains the copyright of its respective owner/s. In no way does Acaysha claim ownership or responsibility for such items, and you should seek legal consent for any use of such materials from its owner.
Copyright © 2019 Acaysha. All Rights Reserved.