A commercial kitchen produces much more heat, grease, smoke, and steam than a residential kitchen. Managing all of that requires more than simply installing a fan above the cooking equipment. A properly designed commercial range hood and exhaust hood system helps remove airborne contaminants, control kitchen temperatures, and support a safer and more comfortable working environment.
Choosing a restaurant hood system can also be complicated. Hood size, cooking equipment, exhaust capacity, makeup air, fire suppression, and local code requirements can all influence which system is appropriate for a particular kitchen.
Whether you're opening a new restaurant, replacing an existing restaurant exhaust hood, or building out a food truck or concession operation, understanding the major components of commercial kitchen ventilation can make selecting equipment easier.
What Is a Commercial Range Hood?
A commercial range hood is a ventilation hood installed above cooking equipment to capture heat, smoke, grease, steam, and other airborne contaminants generated during cooking.
Unlike most residential range hoods, commercial kitchen hoods are designed around the demands of high-volume cooking environments. They are commonly installed above equipment such as:
- Commercial ranges
- Fryers
- Griddles
- Charbroilers
- Ovens
- Woks
- Steam equipment
- Dishwashing equipment
The hood itself is only one component of a complete restaurant hood ventilation system. Depending on the application, the system may also include ductwork, an exhaust fan, makeup air equipment, hood filters, controls, and fire suppression.
Type I vs. Type II Commercial Kitchen Hoods
One of the first decisions when selecting a restaurant hood is determining whether the application requires a Type I or Type II hood.
Type I Hoods
Type I commercial hoods are designed for cooking processes that generate grease-laden vapors in addition to heat and smoke.
They are commonly used above:
- Fryers
- Charbroilers
- Griddles
- Commercial ranges
- Woks
- Other grease-producing cooking equipment
Because grease can accumulate inside the hood and ductwork, Type I systems generally incorporate commercial hood filters and may require an approved fire suppression system.
For restaurants doing significant frying, grilling, or sautéing, a Type I hood is typically the relevant category to investigate.
Type II Hoods
Type II hoods are intended primarily to remove heat, steam, condensation, and odors rather than grease-laden vapors.
They may be used for certain ovens, steam-producing equipment, dishwashers, or other applications where grease exhaust is not the primary concern.
The appropriate hood type depends on the equipment underneath it and applicable building, mechanical, and fire codes. Always confirm requirements with the appropriate local authorities and qualified professionals before purchasing or installing a hood system.
What Is Included in a Commercial Exhaust Hood System?
A complete commercial exhaust hood system can contain several components working together.
Exhaust Hood
The hood captures contaminants as they rise from the cooking surface. Hood dimensions and configuration should be selected according to the equipment being installed beneath it.
Exhaust Fan
The commercial kitchen hood exhaust fan moves captured air through the ventilation system and discharges it outside the building.
Selecting the appropriate exhaust capacity is important. Too little airflow can allow heat, smoke, or grease to escape into the kitchen, while the entire ventilation system must be properly balanced for the space.
Hood Filters
In grease-producing applications, filters help capture grease particles before they enter the ductwork.
Because filters accumulate grease during normal operation, commercial kitchen hood filters should be inspected and cleaned regularly and replaced when necessary.
Makeup Air
When a restaurant exhaust system removes large volumes of air from a building, replacement air needs to enter the space.
A makeup air system introduces replacement air to help balance the building and support the performance of the exhaust system.
Many complete restaurant hood packages combine the hood, exhaust equipment, and makeup air components into one coordinated system.
Fire Suppression
Cooking equipment that produces grease-laden vapors may also require an approved fire suppression system.
A restaurant hood system with fire suppression is designed to respond to fires occurring around protected cooking equipment and the hood area.
Depending on the system and application, buyers may encounter commercial kitchen hoods designed for integration with systems such as ANSUL fire suppression equipment.
How Do You Determine the Right Commercial Hood Size?
There isn't one standard commercial hood size that works for every restaurant.
Start by looking at the total dimensions and arrangement of the cooking equipment that will sit beneath the hood. The hood generally needs sufficient coverage beyond the cooking equipment to effectively capture rising heat and contaminants.
Other considerations can include:
- Type of cooking equipment
- Heat output
- Grease production
- Equipment configuration
- Hood mounting height
- Required exhaust airflow
- Makeup air requirements
- Available ceiling and wall space
- Duct routing
- Local mechanical and fire codes
Commercial restaurant hoods are available in numerous lengths, allowing kitchens to build ventilation around their cooking line rather than forcing the cooking line to fit a single hood size.
Do Commercial Range Hoods Need Fire Suppression?
Not every commercial hood application has identical fire suppression requirements.
However, commercial cooking operations that produce grease-laden vapors commonly require an approved hood and fire suppression configuration.
A commercial vent hood with fire suppression may be particularly useful for operators looking for a more complete system rather than purchasing every ventilation and fire-protection component separately.
Requirements can vary based on cooking equipment, building configuration, jurisdiction, and local fire codes. Restaurant owners should confirm requirements with their local authority having jurisdiction and qualified installers before ordering equipment.
What About Ventless Commercial Hoods?
Traditional commercial hoods typically exhaust air from the kitchen to the exterior of the building. In some locations, however, installing conventional ductwork can be difficult or impractical.
A ventless commercial hood may provide another option for compatible cooking applications.
Ventless systems use filtration and other technologies to treat cooking exhaust without requiring the same conventional exterior duct configuration. They can be useful in certain locations where installing traditional ductwork would be difficult.
However, "ventless" does not mean that every cooking appliance can simply be placed underneath one. Equipment compatibility, fire suppression, filtration requirements, and local approvals still need to be considered.
Restaurant Hoods for Food Trucks and Concession Trailers
Ventilation becomes especially important when commercial cooking equipment is packed into the limited space of a food truck or concession trailer.
A food truck vent hood must handle cooking exhaust while fitting within a much smaller environment than a conventional restaurant kitchen.
Food truck and concession hood systems may combine several important components, including:
- Exhaust hood
- Exhaust fan
- Grease filters
- Duct components
- Fire suppression provisions
- Makeup air components
Because mobile kitchens have unique space and installation constraints, operators should choose a hood system specifically designed for food truck or concession applications rather than adapting equipment intended for a traditional restaurant.
Don't Overlook Commercial Hood Filters
Filters may not be the most expensive part of a restaurant hood system, but they play an important role in its ongoing operation.
Commercial hood filters capture grease and other particles before they travel farther into the exhaust system. Over time, grease buildup can restrict airflow and create additional maintenance and fire concerns.
Restaurant operators should establish a regular inspection and cleaning schedule based on cooking volume and the type of equipment being used.
When replacing filters, make sure the replacement matches the required dimensions and specifications of the existing hood system.
How Much Does a Commercial Hood System Cost?
The answer depends heavily on what the kitchen actually needs.
A basic hood by itself is very different from purchasing a complete system containing an exhaust fan, makeup air equipment, controls, curbs, and fire suppression components.
Factors affecting commercial kitchen hood prices can include:
- Hood length
- Hood type
- Exhaust capacity
- Makeup air requirements
- Fire suppression
- Fan configuration
- Installation requirements
- Ductwork
- Building layout
Restaurant owners comparing systems should therefore look beyond the initial hood price and determine which components are included.
A more complete hood package may have a higher initial equipment cost while reducing the number of separate components that need to be sourced for the installation.
Choosing the Right Restaurant Hood System
Before purchasing a commercial range hood, identify the cooking equipment that will be installed beneath it and determine the ventilation requirements of the entire cooking line.
Consider these questions:
- What cooking equipment will be underneath the hood?
- Does the equipment produce grease-laden vapors?
- Is a Type I or Type II hood required?
- How long does the hood need to be?
- What exhaust capacity is required?
- Will the kitchen require makeup air?
- Is fire suppression required?
- Does the system include an exhaust fan and other necessary components?
- Can conventional ductwork be installed?
- What do local mechanical and fire codes require?
Answering these questions before ordering can help narrow down the available restaurant kitchen hood systems and avoid purchasing components that don't match the kitchen's needs.
Shop Commercial Range Hoods and Exhaust Hood Systems
A properly selected restaurant vent hood is an important part of building a functional commercial kitchen. From basic exhaust hoods to complete restaurant hood systems with makeup air and fire suppression options, the right configuration depends on your cooking equipment, kitchen layout, and installation requirements.
USA Equipment Direct carries commercial hoods for restaurants, food trucks, concession trailers, and other foodservice operations, along with hood filters and ventilation components.
Explore USA Equipment Direct's commercial hood selection to compare hood sizes, exhaust configurations, ventless options, food truck systems, filters, and complete ventilation packages for your kitchen.