Commercial kitchen hood ventilation ducts and exhaust equipment shall comply with the requirements of this section. Commercial kitchen grease ducts shall be designed for the type of cooking appliance and hood served. The prescriptive duct sizing requirements in Section 5.4 and Table 5.3 of ASHRAE 62.2-2010, 2013, or 2016 are permitted to be used to comply with Item 8.1 of the Rater.
While no national code addresses the kitchen ventilation system, state codes do, and the International Residential Code has a section requiring make. Ductless range hoods with charcoal filters are permitted as an alternative in most residential buildings, though ducted range hoods provide more effective ventilation for removing cooking odors, carbon monoxide, and grease accumulation. In restaurants and commercial kitchens, exhaust hoods are required by code.
If the Exception meant to add all the kitchen and other exhaust in determining the exhaust requirements we would have: 400+50+50+80+50 = 630 and 630 CFM is greater than the 600 CFM threshold and makeup air would be required. Makeup air for kitchen exhaust. In homes with naturally drafted fuel-fired appliances like a boiler inside the envelope, kitchen range hoods that exhaust more than 400 cu.
ft. of air per minute require makeup air so they don't depressurize the home and draw combustion gases from the appliance into the living space. Guide describing the retrofit of kitchen exhaust systems, including duct sizing and routing considerations.
Essential Kitchen Ventilation Facts Proper kitchen ventilation removes cooking odors, smoke, and grease. It also improves indoor air quality and protects your family's health. This article explains the key requirements for effective kitchen venting.
It covers airflow, ductwork, vent termination, makeup air, and range hood selection. Understanding these requirements helps you choose the right. One issue we often encounter is ensuring compliance with Kitchen Hood Exhaust requirements.
If this is a new topic to you, please visit our April 2023 Blog discussing the range hood requirements and rationale for why it was implemented in the 2022 code. What's the HERS process for verifying that a range hood is in compliance with the Energy Code? This chapter shall govern the ventilation of spaces within a building intended to be occupied.
Mechanical exhaust systems, including exhaust systems serving clothes dryers and cooking appliances; hazardous exhaust systems; dust, stock and refuse conveyor systems; subslab soil exhaust systems; smoke control systems; energy recovery ventilation systems and other systems specified in Section 502.