For the last several years, codes and standards have required Make-Up air for domestic range hoods with exhaust rates that exceed a certain limit.* This Range Hood Make-Up Air Specifier assists building professionals with sizing and specifying Make-Up air systems for Broan, NuTone, or BEST domestic range hood applications that are in compliance with codes and standards that are adopted at the state level.
*The International Residential Code Section M1503.4 and the International Mechanical Code Section 505.2 require Make-Up air for all domestic range hoods in excess of 400 cfm. States such as California, Wisconsin, and Minnesota have different requirements, as does ASHRAE 62.2. Always check with your jurisdiction for specific Make-Up air requirements and code amendments that are applicable in your area.
Let’s get started by selecting the state where the dwelling unit will be located.