Double chimney inner diameter 150 mm, outer diameter 200 mm Rain cap (chimney top)
The one without anti-bird net is the second photo.
The one with the anti-bird net is the one in the first photo.
Double Chimney Seamless Welded Pipe with Thermal Insulation
It is a connection method using a twist lock system.
The inner tube is made of SUS316 with a thickness of 0.5mm, and the outer tube is made of SUS304 with a thickness of 0.5mm, and has excellent corrosion resistance.
Insulated with 25mm thick ceramic fiber.
It is a heat-resistant black painted product.
Connection can be made by tightening using a locking band dedicated to twist lock.
The single chimney will be the same as the socket connection product.