Double-layer Insulation Chimney

The High-Performance Standard: The Double-layer Insulation Chimney
The Double-layer Insulation Chimney from Tengshida is an advanced, factory-built system designed to provide the highest levels of safety and thermal efficiency for modern venting applications. This engineered solution features a stainless steel inner flue, a high-density insulating layer, and a durable outer casing, creating a complete system that is essential for compliance and performance in commercial and industrial settings.

The Critical Advantages of an Insulated System

A Double-layer Insulation Chimney is not just a pipe; it is a high-performance system that delivers a series of tangible benefits crucial for safety and efficiency.

Maximum Safety Through Reduced Clearances: The primary purpose of the insulated design is safety. The high-performance insulation layer drastically reduces the temperature of the outer casing, allowing the chimney to be installed safely with minimal clearance to combustible building materials. This is a mandatory requirement for any flue passing through walls, floors, or roof assemblies.

Enhanced Performance and Efficiency: By keeping the flue gas hot, the insulation promotes stronger natural draft and minimizes the formation of corrosive acidic condensate. This results in more efficient appliance operation, reduced soot buildup, and a significantly longer service life for the entire venting system.

Enhanced Performance and Efficiency: By keeping the flue gas hot, the insulation promotes stronger natural draft and minimizes the formation of corrosive acidic condensate. This results in more efficient appliance operation, reduced soot buildup, and a significantly longer service life for the entire venting system.

Complete System Integrity and Reliability: Our Double-layer Insulation Chimney systems are engineered and fabricated as a complete, integrated package. The inner and outer layers are designed to expand and contract independently, preventing thermal stress, while precision-locking bands ensure a secure, leak-proof seal at every joint.

Compliance with Modern Building and Fire Codes: The use of a tested and listed double-wall, insulated chimney system is a fundamental requirement of modern building codes (like NFPA 211) for nearly all commercial and industrial installations. Choosing our system ensures your project will pass inspection and meet all necessary safety standards.

Precision Engineering for a Perfect System
Our process is focused on creating a flawless, high-integrity system. We begin by selecting the appropriate inner wall material (typically 316L stainless steel for its superior corrosion resistance) and a high-temperature ceramic fiber or mineral wool insulation. In our 100,000-square-meter facility, these components are assembled into modular sections with meticulous attention to detail, ensuring perfect alignment and seal integrity. The result is a factory-built system that offers a level of quality and performance that site-built chimneys cannot match.

Thermal power plant

Chemical plant

Steel/metallurgical plant

Oil refinery

Cement plant

Paper mill

List of processing and manufacturing equipment

Tengshida (Hebei) Environmental Engineering Co., Ltd. operates a specialized manufacturing facility in Hengshui, Hebei, dedicated to producing high-performance industrial environmental equipment. Established in 2015, our expansive 100,000-square-meter site serves as the production base for our core products, including self-supporting, tower, and stainless steel chimneys. With a registered capital of 100 million RMB and a highly skilled workforce, we have the capacity and technical foundation to manage large-scale industrial projects from fabrication to completion, ensuring every product meets our strict quality standards.

Tenshida, as a leading technology company in the chimney industry, has professional technical strength and after-sales service, focusing on providing customers with system solutions in the chimney field; the company regards quality as life, implements a high-standard quality management system, and provides customers with high-quality products and services; Tenshida's products are used in chemical plants, incineration plants, oil refineries and other products every year. The performance and technical strength of Tenshida's products are constantly verified and praised.

● Products: full-environment product system, one-stop product system supply, passed safety appraisal.

● Technology: Technical research provides more scientific solutions for reinforcement projects and comprehensively guarantees structural safety.

● Application: Tenshida's products are used in a large number of structural projects every year, with a variety of cases.

● Credit: National high-tech enterprise, successfully applied for more than 17 special cases, ISO9001 quality management system certification.

● Certificates such as environmental protection enterprises in the province, honest enterprises, and excellent enterprises in the city.

1. When is a Double-layer Insulation Chimney required?
It is required by code in almost all situations where the chimney passes through occupied spaces or near any combustible materials. This includes passing through walls, ceilings, and enclosed attic or roof spaces. It is the standard for safe, compliant venting in commercial buildings, industrial facilities, and multi-story residential properties.

2. What type of insulation is used in your chimneys?
We use high-density, high-temperature insulation specifically designed for chimney systems. This is typically a ceramic fiber or mineral wool blanket that is non-combustible and can withstand continuous operating temperatures of 1000°F (540°C) or higher, depending on the system's rating.

3. Does this type of chimney require a separate support structure?
The support requirements depend on the chimney's size, height, and location. Smaller systems can often be supported directly by the appliance or with simple wall brackets. Taller, freestanding industrial systems will require an engineered support structure, which we can also design and fabricate as part of a complete package.
 

You can contact us in the following ways:

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Mail：steelchimney.tengshida@gmail.com

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