DuraTech® LDC 10in. - 24in.

DuraTech LDC is a versatile chimney system, available in diameters from 10" to 24", and expertly designed for a variety of high-temperature applications. With UL 103 (Type HT for smaller diameters) and CAN/ULC-604 listings, and featuring 1" Thermal Tech insulation for a safe 2" clearance to combustibles, DuraTech LDC offers superior performance and peace of mind for your factory-built fireplaces, large masonry fireplaces, and boilers.

10" to 16"

The 10”-16” diameters are listed to UL 103 Type HT. That means our 10”-16” chimney system is perfectly suited for hightemperature appliances, making it ideal for factory-built fireplaces, large masonry fireplaces, and boilers.

18" to 24"

The 18”-24” diameters are listed in the US to UL 103. In Canada, the 10”-24” diameters are listed to CAN/ULC-604. The DuraTech LDC may also be used on specific factory-built fireplaces listed to CAN/ULC-610 & UL 127.

DuraTech LDC features:

Available in 10” - 24”diameters
1” Thermal Tech insulation blanket
Outer Wall available in 430 Stainless Steel (.027”) or Galvalume (.029”) [US only]
Inner Wall is 430 stainless steel (.027”)
2” clearance to combustibles

US Listings:

UL 103 Type HT in 10”-16” diameters
UL 103 in 18”-24” diameters

Canada Listing:

CAN/ULC-604 in 10” - 24” diameters

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