When it comes to kitchen ventilation, type 2 hoods are a popular choice for many commercial kitchens. These hoods are designed to capture and remove heat, smoke, and odors from cooking surfaces, creating a safer and more comfortable working environment. To ensure optimal performance and safety, it's crucial to understand the requirements for type 2 kitchen hoods. This article will delve into the key aspects you need to consider when selecting and installing a type 2 kitchen hood.
Understanding Type 2 Kitchen Hoods
Type 2 kitchen hoods, also known as under-the-counter hoods, are designed to be installed directly beneath the cooking surface. They are typically used in smaller kitchens or where space is at a premium. These hoods are not as powerful as their type 1 counterparts but are still effective in capturing and removing heat and smoke from griddles, fryers, and other low-to-medium heat output appliances.
Key Requirements for Type 2 Kitchen Hoods
Capture Area
The capture area of a type 2 hood is a critical factor to consider. It refers to the size of the cooking surface that the hood can effectively capture and remove heat and smoke from. The capture area should be at least 6 inches wider and longer than the cooking surface it's installed above. For example, if you have a 36-inch cooking surface, you would need a type 2 hood with a capture area of at least 42 inches by 36 inches.

Airflow Rate
The airflow rate, measured in cubic feet per minute (CFM), indicates how much air the hood can move. For type 2 hoods, the airflow rate should be at least 400 CFM for every 12 inches of cooking surface. For instance, a 36-inch type 2 hood should have an airflow rate of at least 1200 CFM. Keep in mind that higher heat output appliances may require a higher airflow rate.
Grease Filters
Type 2 hoods typically use baffle or mesh filters to capture grease and other particles. Baffle filters are more efficient at capturing grease but are more expensive and require more maintenance. Mesh filters, on the other hand, are less expensive and easier to maintain but are not as efficient at capturing grease. The choice between the two depends on your kitchen's specific needs and budget.
Ductwork
Type 2 hoods require proper ductwork to vent heat and smoke outdoors. The ductwork should be made of durable, grease-resistant material and should be installed in accordance with local building codes. The ductwork should also be regularly cleaned and maintained to prevent the buildup of grease and other debris.

Noise Levels
Noise levels are an important consideration, especially in busy kitchens. Type 2 hoods typically operate at lower speeds than type 1 hoods, resulting in lower noise levels. However, it's still important to consider the noise level of the hood you're installing, especially if it's going to be used in a high-traffic area.
Installation Height
The installation height of a type 2 hood is another crucial factor. These hoods are typically installed between 24 and 36 inches above the cooking surface. However, the exact height will depend on the specific hood and the appliances it's being installed above. Always follow the manufacturer's instructions for the correct installation height.
Maintenance Requirements for Type 2 Kitchen Hoods
Regular maintenance is essential to keep your type 2 kitchen hood operating at peak efficiency. This includes cleaning the grease filters regularly, inspecting the ductwork for signs of grease buildup, and ensuring that the hood's fans and motors are in good working order. Many local health departments require that kitchen hoods be inspected and cleaned by a licensed professional on a regular basis.
Conclusion
Type 2 kitchen hoods are a practical and efficient solution for many commercial kitchens. However, to ensure optimal performance and safety, it's crucial to understand and adhere to the key requirements for these hoods. By doing so, you can create a safer, more comfortable, and more efficient working environment for your kitchen staff.