Range hood vent code requirements. The IRC is a ‘model code’ that many U.

Range hood vent code requirements eet the requirements of HVI 920, as applicable. While the International Mechanical Code serves as the foundation for most states’ and municipalities’ laws, local rules may have different requirements for specific specifications. These requirements are outlined in Section 1505. The IMC was developed with broad-based principles that make possible the use of new materials, methods and design. This chapter contains Dec 30, 2024 · Kitchen Hood Vent Codes Are Based On The IRC And Your Local Code Range hood vent code requirements are laid out in the IRC or the International Residential Code. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Appendix C Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems Appendix T Recommended Procedure for Worst-Case Testing of Atmospheric Venting Systems Under N1102. 3. ure equalization requirements of Section 501. 7. Exhaust hood systems capable of exhausting more than 600 cubic feet per minute shall be provided with makeup air at a rate approximately equal to the exhaust air rate that is The fan for overhead range hoods and downdraft exhaust equipment not integral with the cooking appliance shall be listed and labeled in accordance with UL 507. 1 Scope. Jul 4, 2024 · Navigating the labyrinthine world of building codes can be daunting, especially when it comes to kitchen ventilation. The duct serving the hood shall have a smooth interior surface, shall be air tight, shall be equipped with a back-draft damper and shall be independent of all other exhaust systems. These sections also cover things like what type of ducting material can be used. Kitchen range hoods shall also be rated for sound and meet field verification requirements in the California Energy Code for low-rise and high-rise residential buildings. 1 Location of Exhaust Outlets because it seems to be the relevant section. 1 General. Building Codes and Ventilation Standards Local building codes mandate specific ventilation requirements for kitchen range hoods. 1, listed and labeled domestic ductless range hoods shall not be required to Sep 14, 2021 · The FBC – Residential also adopts the IRC criteria that must be met by your range hood in the state of Florida if you have to or if you choose to install one in your kitchen. This field is filled out automatically based on the installed system listed sound rating and maximum sound rating allowed. Outside of the open-flame gas range top the hood will directly serve, my home has only direct- or power-vent gas fired appliances (furnace, water heater, two sealed gas fireplaces). Compliance Statement for Sound. Jun 24, 2025 · Many U. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Oct 3, 2024 · In Phoenix, these regulations encompass various elements, including the installation of range hoods, exhaust fans, ductwork specifications, and maintenance requirements. Most jurisdictions follow the International Residential Code (IRC) which requires a minimum airflow of 100 cubic feet per minute (CFM) for Jul 7, 2024 · Building Code Requirements The National Building Code of Canada (NBC) sets forth the minimum standards for the construction and maintenance of buildings in Canada. Kitchen range hoods. Jun 18, 2023 · One common range hood code violation is the failure to vent the range hood to the exterior of the building. Building HVAC Requirements – Indoor Air Quality and Mechanical Ventilation Page 4-87 HRV/ERV manufacturers do not allow exhaust ducting from the kitchen because of the heat, moisture, grease, and particulates that should not enter the heat exchange core. It must then be field verified in accordance with Reference Residential Appendix RA3. In general, building codes and regulations Apr 11, 2025 · Venting a range hood through an exterior wall is a common and effective method for removing smoke, grease, and odors from the kitchen. 4. 2) for range hoods are: •• Must discharge to the outdoors (not terminate in attic). The exhaust fan must be ducted to the outside of the Code Change Summary: Revised code language on flexible cord connected range hoods and microwave oven/range hood combinations. A vented range hood must meet the requirements specified in 150. This approach ensures that pollutants are efficiently expelled from the home, contributing to improved air quality and a cleaner cooking environment. Freestanding or built-in ranges shall have a vertical clearance above the cooking top of not less than 30 inches (762 mm) to unprotected combustible material. Local building codes: While statewide codes may not require range hoods explicitly, some local jurisdictions might have stricter regulations in place. Santa Monica, for example, makes no differential for combustible and The ventilation system, including transfer fan-powered terminal units, shall be designed to supply the required rate of ventilation air continuously during the period the building is occupied, except as otherwise stated in other provisions of the code. Jun 1, 1994 · Range hoods shall discharge to the outdoors through a duct. This comprehensive guide will delve into the intricacies of California’s building regulations to provide a clear understanding of the legal requirements surrounding range hoods. The IRC is a ‘model code’ that many U. This guide provides a detailed, step-by-step explanation of how to properly vent a range hood through a wall UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction M1901. Make sure the range hood size is matched properly to the cooktop (Source: 36). Apr 27, 2024 · California Building Code Requirements: The California Building Code (CBC), a comprehensive set of regulations governing the construction of buildings in the state, includes specific provisions related to range hoods. 0 Indoor Air Quality for Residential Occupancies > 405. The kitchen ventilation can be accomplished either with a range hood or just general exhaust from the kitchen, like from an HRV. Exception: Where installed in accordance with the Sep 17, 2018 · Kitchen Hood Venting Requirements All kitchen range hood vents should terminate outside through the roof or a side wall, not into an attic or other enclosed area. Jan 21, 2021 · If the range manufacturer "recommends" something, that's exactly what it is, a recommendation, not an enforceable requirement. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction New Mexico Mechanical Code 2021 > 4 Ventilation Air > 405. B Sizing of Venting Systems Serving Appliances Equipped With Draft Hoods, Category I Appliances, and Appliances Listed for Use With Type B Vents Oct 9, 2024 · Kitchen hoods are an essential part of commercial kitchens as they prevent hazards and maintain air quality. All appliances have their own codes and regulations that has to be followed. This chapter contains Sep 23, 2025 · Range hood requirements are more straightforward than major home improvement jobs, but they can vary depending on state and local laws. Building codes require kitchen exhaust fans to be connected to metal ductwork for fire safety. User notes: About this chapter: Chapter 15 is specific to exhaust systems related to clothes dryers, domestic cooking, toilet rooms, bathrooms and whole-house ventilation systems. The installation of a listed and labeled cooking appliance or microwave oven over a listed and labeled UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions. Range hoods are a good way to meet this requisite mechanical ventilation. 16 (B) (4) was revised to make it clear that the rules Installing a range hood vent helps remove harmful pollutants, such as carbon monoxide and nitrogen dioxide, produced during cooking. In the 2020 NEC ®, the language in 422. Ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building. That being said, many states Jan 2, 2021 · The general requirements of the International Residential Code (IRC-M1503. 2 and the International Residential Code (IRC)—recommend or require specific standards for gas cooktop ventilation. Sep 1, 2020 · Is a range hood required by code? Range hoods serve many different purposes. May 15, 2025 · Learn about kitchen range hood compliance in NYC, including ventilation requirements, fire suppression systems, and key design considerations for residential and commercial kitchens. Infiltration. Continuous system ventilation rate compliance is determined in Section D. Aug 10, 2021 · Although range hoods aren’t mandatory according to the IRC, California code requires mechanical kitchen ventilation that exhausts 100-300 CFM (intermittent ventilation) or allows 5 air changes per hour (continuous ventilation). A recirculating hood Feb 12, 2024 · In modern range hoods, the minimum vent size is 6″ for a 400 CFM-rated hood and can range up to 12″ for a 1200 CFM-rated hood. Comprehending the local code requirements for kitchen ventilation is essential for homeowners, contractors, and builders alike. Jun 8, 2018 · 780 CMR Ninth Edition, Chapter 34: Existing Building Code Amendments 780 CMR Ninth Edition, Chapter 35: Reference Standards Amendments 780 CMR Ninth Edition, Chapter 110: Special Regulations Chapter 4: Special detailed requirements amendments Chapter 19: Special appliances equipment and systems. 1 and . Ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the Oct 16, 2009 · Maybe Maybe Not M1503. 2, based on the type of hood. Intermittent dryer exhaust, intermittent range hood exhaust, and intermittent toilet room exhaust airflow rates above the residential dwelling or sleeping unit minimum ventilation rate Local exhaust systems that are not a component of the whole-house mechanical ventilation system a Proper range hood installation requires careful attention to specific requirements that ensure both safety and performance. This chapter contains Feb 11, 2022 · Building codes have required an operable window or an exhaust fan in bathrooms for many years and have generally required kitchen exhaust either directly through a fan or indirectly through a recirculating range hood and an operable window. 0 (o)1G. Homeowners use them to vent grease and smoke from their kitchens; factories and warehouses use them to vent chemicals and potentially hazardous materials from workspaces or storage areas; restaurants use them to vent heavy grease and smoke out of commercial kitchens. According to the NBC, a range hood is required in kitchens that have a gas or propane cooking appliance. Included are requirements for exhaust discharge locations, protection of exhaust ducts from damage, exhaust duct construction, duct length limits, and exhaust termination clearances. 1 Clearances. Most residential four-burner gas cooktops will need a vent of 6″ to 8″ in size. Where installed in accordance with the manufacturer’s instructions and where mechanical or natural ventilation is otherwise provided in accordance with Sections M1507 or R303. a. The IRC actually has no requirement for a hood above a range, including a gas range, unless its an open top broiler. states and counties base their code on. Going through the exterior wall of your house requires less waterproofing. 2. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction eet the requirements of HVI 920, as applicable. This ventilation can be provided through a range hood or an overhead exhaust fan or ventilated microwave meeting UL923 standard. User notes: About this chapter: Chapter 15 is specific to exhaust systems related to clothes dryers, domestic cooking, toilet rooms, bathrooms and whole-house ventilation systems. 0501 listed items (a) and (b) above as addition to the requirements in IMC section 501. However, the dimensions and the length of range hood ductwork are found in Section M1504, which applies generally to exhaust ducts, including the range hoods. Appendix T Recommended Procedure for Worst-Case Testing of Atmospheric Venting Systems Under N1102. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Installing a range hood vent requires that you follow all of the local building codes and regulations. Many appliances can be wired either by flexible cord or a hard-wired connection method. This chapter shall govern the design, construction and installation of 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. Learn hood code requirements in our article! 4. For the most current adoptions details go to International Code Adoptions Important changes include: Added coverage of pollution control units. Mostly, local codes in the USA comply with the IRC, but Aug 30, 2021 · Range hoods are not required in kitchens in Ontario as per the IRC, National Building Code of Canada (except if the range is used for commercial purposes), and Ontario Building Codes. A range hood would satisfy this rule. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Sep 13, 2021 · A range hood might not necessarily be a code requirement, but it is a good idea to have one in your kitchen, if you have a range, to vent out smoke and odors from your cooker to the outside of your home. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Nov 12, 2020 · California Municipal Codes While the state of California does have a building code for range hoods, this is superseded by the town you live in. Effective date: February 8, 2016 Range hoods shall discharge to the outdoors through a duct. 3. Jan 31, 2025 · On new construction residential projects, “Kitchen Range Hood” will be listed, indicating that HERS inspection of the range hood and exhaust fan is required. SECTION M1503 RANGE HOODS INSIGHTS (1) INSIGHTS (1) 2015 International Residential Code (IRC) / CHAPTER 15 / SECTION M1503 May 12, 2023 · How Kitchen Hood Requirements Vary By State Kitchen hood requirements vary by state, meaning they need to abide by certain regulations depending on where your kitchen is located. Kitchen range hoods must be vented directly outdoors, not recirculating Maximum noise level of 3 sones at the required airflow Nov 12, 2020 · California Municipal Codes While the state of California does have a building code for range hoods, this is superseded by the town you live in. Apr 16, 2025 · Navigating Building Codes and Regulations for Range Hoods: Don’t Get Hoodwinked by Rules! Alright, kitchen adventurers, let’s dive into the sometimes-dreaded world of building codes and regulations when it comes to your shiny new range hood! It might sound about as exciting as watching paint dry, but trust me, knowing the rules before you start swinging a hammer can save you a whole heap UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction The fan for overhead range hoods and downdraft exhaust equipment not integral with the cooking appliance shall be listed and labeled in accordance with UL 507. Apr 22, 2025 · Improper range hood installation Recirculating fans used where outside venting is required Undersized hoods for cooking surface Ductwork with too many bends or excessive length Missing makeup air for high CFM systems Incorrect duct materials Using flexible ducts where rigid is required Improper sealing of duct connections Inadequate duct supports UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction 507. May 23, 2024 · Range hoods, also known as extractor hoods or kitchen exhaust fans, play a vital role in maintaining a healthy and clean kitchen environment. While the International Residential Code (IRC) regulates electrical and building codes, local codes supersede the international code. 2022 CALIFORNIA CODES KITCHEN, BATH & LAUNDRY REMODEL REQUIREMENTS Applicable Codes are the 2022 editions of the California Residential Code (CRC), California Electrical Code (CEC), California Plumbing Code (CPC), California Mechanical Code (CMC), California Energy Code (CNC), and the California Green Building Standards Code (GRN). NEC Section 422. Vented range hoods utilizing the capture efficiency rating for compliance is determined in Section E. Dec 27, 2021 · While no national code addresses the kitchen ventilation system, state codes do, and the International Residential Code has a section requiring make-up air. For the final say on any code matter, you will need to consult your local state or city building codes or even a quick call to your local building Jun 5, 2024 · Additionally, the range hood must vent to the outside to prevent the recirculation of pollutants within the kitchen, which is mandated by most building codes. The duct serving the hood shall have a smooth interior surface, shall be air tight and shall be equipped with a backdraft damper. Whole-house ventilation -type attic fans that discharge into the attic space of dwelling units having private attics shall be permitted. These codes outline specific … Aug 28, 2022 · My jurisdiction in Ohio applies the 2018 IRC that requires make-up air for any kitchen range hood over 400CFM. 10 inches water gauge. For example, San Francisco has its own set of building codes that supersede California building codes for range hoods. Intermittent dryer exhaust, intermittent range hood exhaust, and intermittent toilet room exhaust airflow rates above the residential dwelling or sleeping unit minimum ventilation rate Local exhaust systems that are not a component of the whole-house mechanical ventilation system a Exception: Where all appliances in the house are direct-vent, power-vent, unvented, or electric, makeup air shall be provided where exhaust fans are capable of exhausting more than 600 cubic feet per minute (0. residential building codes—including those based on ASHRAE 62. But is a range hood required by code? The answer to this question varies depending on local regulations and building codes. S. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Chapter 25 Plumbing Administration Chapter 26 General Plumbing Requirements Chapter 27 Plumbing Fixtures Chapter 28 Water Heaters Chapter 29 Water Supply and Distribution UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Aug 31, 2023 · Here is a checklist for Commercial Kitchen Hood Code Requirements. Cooktops and ranges shall be provided with a domestic cooking hood installed and constructed in accordance with Section 505 of the California Mechanical Code. 16 (B) is all about the use of flexible cords with specific appliances. One pressing question that often arises is whether range hoods are required by code in California. Range hoods shall discharge to the outdoors through a single-wall duct. Some homeowners or contractors may vent the range hood into enclosed spaces like an attic or crawl space, which can be dangerous and potentially deadly. 1 and 507. 2 of the CBC, which states that all residential kitchens must have a ventilation system capable of exhausting cooking fumes and UpCodes note: WI Administrative Code SPS 364. Hoods shall comply with the overhang, setback and height requirements in accordance with Sections 507. Kitchen range hoods that exhaust air from the kitchen area are considered as exhaust ventilation for balancing and makeup purposes. Pennsylvania Fire Code 2018 > 6 Building Services and Systems > 607 Commercial Kitchen Hoods Go To Full Code Chapter Chapter 15 Exhaust Systems User note: Code change proposals to this chapter will be considered by the IRC- Plumbing and Mechanical Code Development Committee during the 2015 (Group A) Code Development Cycle. Building codes provide specific requirements for range hood venting to ensure optimal performance and safety. b. 28 m3/s). Aug 2, 2022 · The regulations specifically pertaining to range hood ventilation are found in Section M1503 of the IRC. This means that if you live in a California municipality that has more strict building codes than the state, you must follow the city’s codes rather than the state code. Below is a list of several different requirements that must be met by your range hood to comply with IRC guidelines. Type of Range Hood The type of range hood required can vary depending on the cooking environment and local regulations. 4. Intermittent dryer exhaust, intermittent range hood exhaust, and intermittent toilet room exhaust airflow rates above the residential dwelling or sleeping unit minimum ventilation rate Local exhaust systems that are not a component of the whole-house mechanical ventilation system a User notes: About this chapter: Chapter 15 is specific to exhaust systems related to clothes dryers, domestic cooking, toilet rooms, bathrooms and whole-house ventilation systems. 4 Hood size and location. In California, the California Building Code (CBC) is the primary authority on building standards. 4 or N1105 Conditions ≤ 5ACH50 Wisconsin building code for range hood CFMs? I need to install a range hood in my house and after doing some research I found out that normally you can't go higher than 400 CFM unless you install a make up air system in your house. However, we added them to Section 501. 12. This chapter contains A fully integrated custom code based on the 2015 International Residential Code. Mar 14, 2025 · To meet the recommended CFM requirements, you'll need a range hood with 250 CFM. 1. 4 Kitchen Exhaust Go To Full Code Chapter Ventilation air requirements (transient/non-transient) Kitchen exhaust/bathroom exhaust requirements Environmental air discharge requirements Cooking equipment maintenance Grease ducts Commercial kitchen exhaust fan termination revisions Commercial cooking/fire suppression systems revisions Duct system revisions Hydronics (tubes & fasteners Jul 20, 2024 · Under-cabinet range hoods Wall-mounted range hoods Island range hoods Downdraft range hoods Ventilation Requirements In addition to requiring a range hood, the Alberta Building Code also specifies the ventilation requirements for kitchen exhaust systems: The exhaust fan must have a minimum airflow capacity of 100 cubic feet per minute (CFM). 4 or N1105 Conditions ≤ 5ACH50 501. Kitchen range hoods that are listed and installed to recirculate air without exhausting it are not required to be balanced. See explanation on page iv. Domestic kitchen exhaust ducts may terminate with other domestic dryer exhaust and residential local exhaust ducts at a common location where each duct has an independent back-draft damper. Apr 14, 2025 · Building Codes and Range Hoods Building codes are essential regulations that govern the construction and maintenance of buildings to ensure safety, health, and structural integrity. However, the Ontario Codes do require some kind of exhaust air intake in kitchens. 2. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction Sep 14, 2021 · When deciding which range hood is best for your kitchen or if you even need one, it is important to review your state’s residential building codes. UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction 1. Range Hood Requirements: Must be metal. Proper installation and venting are crucial for maintaining a safe and healthy indoor environment. Oct 22, 2024 · Range hoods are essential kitchen appliances that remove smoke, odors, and grease from the air. What is the proper way to vent a range hood? A vented range hood, aka a ducted range hood, pulls in air and leads it outside either through the exterior wall or the roof. A new exception was added Exception: Where a range hood or down draft exhaust fan is used to satisfy the local exhaust requirements for kitchens, the range hood or down draft exhaust shall not be less than 100 cfm at 0. CBC Requirements for Range Hoods According to the CBC, range hoods are required in all kitchens that have a gas or Today’s PHW Inspections Question: Are Kitchen Exhaust Hoods Required? Many building codes require exhaust ventilation for indoor cooktops or cooking ranges to remove smoke, steam, and cooking odors from the kitchen. Reduced clearances are permitted in accordance with the listing and labeling of the range hoods or appliances. Jan 6, 2020 · Although the international CFM code for range hoods is 100CFM, some local authorities allow for range hoods with slightly lower or higher CFM than this, depending on the type of your cooking, and the square footage of your cooktop. INSIGHTS Range hoods shall discharge to the outdoors through a duct. qcnuhu mpzxo harmnci scivua njmryd bdzqmuf szca kfaszc qtdlq aecd zikuo tgirz stbig einbj kntrnal