What are UltraViolet lights in kitchen hoods used for and what outcome can I expect when using them?
Ultraviolet Lights or UV-C lights are a type of bulb that has a very high intensity that allows it to break down organic compounds. UV has been applied in a variety of sterilization and water treatment applications for decades. The wavelength varies by application. In the case kitchen exhaust systems, UV-C light is used to […]
I’ve Seen Ventilated Ceilings for Kitchens in Europe. Can they be used in North America?
In a word yes, Ventilated Ceilings can be installed in North America, assuming it is listed for that purpose. Let’s talk about what a Ventilated Ceiling is. It is an alternative to the traditional canopy and island hoods seen in most installations in North America. Effectively, the Ventilated Ceiling System is the exhaust and supply […]
How can you have balancing dampers in a grease duct? I thought they were not allowed?
Here’s what NFPA 96 has to say about balancing dampers in commercial kitchen exhaust ducts. Chapter 9 Auxiliary Equipment 9.1 Dampers. 9.1.1 Dampers shall not be installed in exhaust ducts or exhaust duct systems. 9.1.2 Where specifically listed for such use or where required as part of a listed device or system, dampers in exhaust […]
Demand Control Ventilation Systems for Commercial Kitchens, how do they differ, how are they the same?
The number and type of Demand Control Ventilation (DCV) systems for commercial kitchens have grown significantly in recent years. This can be attributed to several factors, principally the adherence to ASHRAE 90.1 ventilation standard. This is the standard that affects design for commercial kitchens, and it states that on exhaust systems greater than 5000 cfm, […]