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Gas Fires > Gas Fires for a Class 2 Chimney
Gas Fires for a Class 2 Chimney
Class 2 chimneys are designed for use with gas or electric appliances, but never solid fuel (wood, coal or smokeless fuels). These can be prefabricated structures which are built up through the house in sections and terminate at the roof with a metal flue terminal or ridge vent or can be installed using a conventional gas flue system but in an existing or prefabricated chimney stack. Class 2 chimneys are commonly classed by the diameter- 5-inch diameter or under usually implies the chimney is class 2, whereas a diameter of 7 inches or more will imply the chimney is class 1. There are always discrepancies and exceptions with these two chimney classes in relation to fitting a gas fire, so if you are in any doubt, consult Document J of Building Regulations or refer to the manufacturer’s installation instructions or alternatively, get in touch with one of our expert advisors and we will be happy to assist.
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