The DuraTech chimney system uses a double-wall chimney that is insulated by a layer of ceramic refractory blanket. The inner wall is 0.020" stainless steel and the outer wall is of 0.02" galvalume. This UL listed design permits a 2" clearance to combustibles and results in a pipe with an 8" inner diameter and a 10" outer diameter. The sections are available in six lengths and fasten with secure twist-lock connections. A limited lifetime warranty applies.
Features
Double-wall chimney pipe for wood, oil, coal, and gas appliances
.021" galvalume outer wall and .020" stainless steel inner
wall
Insulated by a layer of ceramic refractory blanket
Secure twist-lock connections
2" clearance to combustibles
8" inner diameter with a 10" outer diameter
Available in six lengths
Limited lifetime warranty
UL Listed
Manufacturer: DuraTech Part Number: 9602GA UPC: 662492292204
This particular chimney pipe comes in lengths of 6", 12", 18", 24", 36", and 48". The options are available on the item page under the "Choose Length:" heading just above the "Add to Cart" button.
By morris from Canon city, Colorado on November 7, 2011
What is the differences between the following three 1. galvanized steel 2. galvalume 3. stainless steel?
By Tyler M. - Fireplace Specialist on November 7, 2011
Answer:
Galvanized and galvalume are the same and will be susceptible to rust and corrosion if exposed to the weather. Stainless steel will not rust or corrode and therefore is strongly recommended for any use where your pipe will be exposed. However, you may paint galvanized with a heat-resistant, rust-resistant paint if you must use it outdoors.