DuraFlex SW is a smooth wall flexible relining system for masonry chimney. DuraVent DuraFlex SW is for use with gas, wood pellet, oil and wood appliances and applications include fireplace inserts, furnaces, boilers and water heaters. Because of the smooth inner wall, DuraFlex SW provides for no output reduction allowing for full appliance efficiency. This also eliminates ridges that restrict flue gas flow and collect deposits facilitating cleaning and maintenance. DuraFlex SW is ideal for relining masonry chimney for wood and gas burning appliances.
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