A Guide to Commercial Kitchen Hood Systems

Importance of Hood Cleaning Systems

Regular kitchen hood cleaning is essential for maintaining a safe and efficient kitchen environment. In commercial kitchens, significant amounts of grease and smoke accumulate in the exhaust system. If not regularly cleaned, this buildup can increase the risk of fires, potentially causing severe damage and endangering lives. Additionally, a dirty exhaust system can compromise air quality, negatively impacting employees’ health and violating health codes.

What Makes a Kitchen Hood System?

A commercial kitchen hood system typically consists of a canopy, suction fan, and filters. The canopy captures smoke, steam, grease, and odors, while the suction fan pulls in polluted air to be filtered. This setup helps keep the kitchen clean and minimizes the spread of harmful carbon monoxide. Proper ventilation also plays a vital role in reducing heat and smoke during fires, enhancing overall kitchen safety.

What Makes a Kitchen Hood System?

A typical commercial kitchen hood system consists of several key components:

  1. Exhaust Hood: The visible component above cooking equipment, capturing grease, smoke, and heat.
  2. Grease Duct: Channels grease and contaminants from the hood to the exterior of the building.
  3. Exhaust Fan: Creates suction to remove air, grease, and odors from the kitchen.
  4. Filters: Capture grease particles and contaminants before they enter the ductwork.
  5. Make-Up Air System: Provides fresh air to replace the air removed by the exhaust fan.

Commercial Hood Systems Installation and Costs


Installing a commercial hood system involves several key steps:

  1. Planning: Determine the best location for the hood, considering the kitchen layout and local building codes.
  2. Mounting: Secure the hood to the ceiling or wall, ensuring it is properly aligned over cooking equipment.
  3. Ductwork: Install ducts to vent air outside, keeping ducts as short and straight as possible for efficiency.
  4. Electrical Connections: Connect the hood to the power supply, including lighting and fan controls.
  5. Testing: Ensure the system operates correctly, checking for proper airflow and safety compliance.


The cost of installing a commercial kitchen hood system ranges from $200 to $1,000, depending on the type and features. Larger, more complex systems typically cost more and take longer to install.

Do’s and Don’ts of Kitchen Hood Installation


  • Choose a mounted hood for spacious kitchens.
  • Opt for accessible devices or touch screens for ease of use.
  • Vent vertically through the roof for better efficiency.
  • Maintain proper clearance between the hood and cooking surfaces.
  • Use metal HVAC ducting or galvanized steel when possible.
  • Seal exterior openings with caulking and use HVAC tape for vent joints.
  • Clean ducts regularly to ensure effective airflow.


  • Avoid undersized hoods that don’t cover the cooking area.
  • Steer clear of low-cost, ineffective filters.
  • Do not use flexible ducts, as they create airflow friction.
  • Never terminate the hood system in a confined space.
  • Avoid using screens on roof jacks or wall caps.

Using Omni Supply Products

Omni Supply offers a range of high-quality products designed to enhance the efficiency and safety of your kitchen hood system. Their solutions include durable filters, efficient ductwork components, and advanced cleaning tools. Incorporating Omni Supply products ensures your kitchen operates at peak performance, reducing maintenance costs and improving air quality.

Commercial Hood System Maintenance

Cleaning Frequencies

  • Monthly: Kitchens using solid fuel (e.g., wood, charcoal) should clean hoods monthly.
  • Quarterly: High-intensity operations without solid fuel need quarterly cleanings.
  • Semi-Annually: Medium-volume kitchens should clean hoods semi-annually.
  • Annually: Low-volume operations, such as seasonal businesses, require annual cleanings.

Maintenance Tips

  • Fans: Regularly disinfect and clean mechanical fans to remove grease buildup.
  • Filters: Clean or replace filters to prevent dirt from obstructing airflow.
  • Ductwork: Periodically clean ducts to maintain system efficiency and safety.

Maintaining a clean and efficient kitchen hood system is crucial for the safety, health, and performance of any commercial kitchen. By following best practices for installation, using quality products from Omni Supply, and adhering to regular cleaning schedules, kitchen operators can ensure their exhaust systems remain in optimal condition.

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