Firespray International has introduced a rectangular fire resistant grease duct system for commercial kitchens that does not have to be welded. The system is available in the United States and Canada and has been tested and evaluated to international standards. According to company officials, the product eliminates the need for costly and time-consuming welding. The grease duct is available in rectangular segments with bolted flanges for on-site assembly using specialized gaskets and sealants. The manufacturer also says that creating a grease duct joint typically takes 75 percent less time than a welded joint - about 15 minutes.

Firespray International, Flamebar House, South Road, Templefields, Harlow, Essex, England CM20 2AR; (540) 292-9521; www.firesprayusa.com.