Commercial kitchen exhaust hoods are an integral part of any commercial kitchen, providing ventilation and protection for staff and customers from smoke and odours produced during cooking. They are an important part of any kitchen’s safety infrastructure and are available in a variety of styles, sizes, and materials. In this guide, we’ll cover the types of commercial kitchen exhaust hoods, the requirements for their installation, and the technical specifications that should be taken into consideration when purchasing one.
Type 1 hoods are designed to trap and remove grease, smoke, and other particles produced by equipment such as fryers, broilers, ranges, and tilt skillets. They must be custom-built to cover all of the equipment, regularly cleaned to prevent grease buildup, and professionally installed.
Type 2 hoods are for use over heat- and steam-producing equipment such as dishwashers, steam tables, and some ovens. They are not designed for use over grease-producing equipment, and can be used to remove condensation and steam, heat, and odors. Professional installation is also required.
When choosing a commercial kitchen exhaust hood, it is important to consider the technical specifications of the hood:
Fire suppression is an important safety requirement for commercial kitchen exhaust hoods. The system must cover the entire surface area of the hood and all cooking equipment below. In addition, the system must be tested and inspected regularly by a qualified technician and installed in accordance with manufacturer’s instructions and local codes and regulations. Maintenance of the system includes replacing the nozzles and other components and checking the pressure and flow rate.
Make-up air is necessary to ensure that the exhaust hood is able to draw sufficient air away from the cooking area. The make-up air rate should be 10% of the total airflow rate of the exhaust hood and distributed evenly throughout the kitchen. The air should be filtered to remove any grease and other debris and provided through an independent system that is not connected to the hood’s exhaust system.
At ContekPro, all our modular prefabricated kitchens are delivered with a pre-installed exhaust hood based on local and client requirements. Fire-suppression and make-up air are included.