A round double-wall chimney system is designed to release the flue gases of the heating system in a natural way. It is suitable for gas, liquid and solid fuel stoves. The maximum flue gas temperature is 600 °C. Certified materials that are not harmful to human health are used to produce chimneys. The inlet pipe has a nominal size of 115 mm. The pipe is made of stainless steel (class 1.4404, thickness – 0.6 mm). Modular chimney set contents. High-quality Materials: Our modular chimney system DD-1 is made of certified materials that are not harmful to human health, including stainless steel (grade 1.4404) for the inner smokestack and mineral wool for insulation. Versatile Usage: This chimney system is suitable for gas, liquid, and solid fuel boilers and can handle combustion products with a maximum temperature of 600°C. It is designed for. Natural chimney draft and can be used for various heating units. Easy Assembly: The double-walled chimneys are easy to assemble, with the inner chimney pipes threaded together and the outer pipes fastened with stainless steel rivets. The installation process is clearly explained in the manual, including. Fire sealant for tight connections. Safety Measures: Our chimney system includes safety measures such as keeping safe distances from combustible materials, using insulating non-combustible materials in places of intersection with building structures, and installing a rubber roof seal to protect against moisture. The manual provides detailed instructions for these safety measures. Sauna Chimney Option: Our chimney system can also be used for sauna installations, with a specific hole size recommended for cutting in the roof. This makes it a versatile option for both residential and commercial settings. However, if the goods are out of stock and we are waiting for new stock to arrive, it may take us one to two weeks to replenish supplies. If you have any technical questions, feel free to ask, we will reply within 24 hours, except for weekends.