Are AMPCO® systems UL Listed?
AMPCO VSI-II, IVSI-1, IVSI-2 and IVSI-4 are UL listed in the United States and Canada as Building Heating Appliance Chimneys for venting gas, liquid and solid fuel appliances at a temperature not exceeding 1000º F continuous, 1400º F Chimney for venting gas, liquid and solid fuel appliances at a temperature not exceeding 1400º F continuous and as Grease Ducts For Restaurant Cooking Appliances. Single wall VSI-I is UL listed as a Grease Duct For Restaurant Cooking Appliances and the materials and construction comply with most code requirements for chimney connectors and masonry chimney liners.
