南京智热节能科技有限公司

I. Gas-fired hot-air furnace It refers to an industrial heating device that uses combustible gas as fuel and generates clean hot air through combustion and heat exchange, widely employed in applications such as preheating raw materials, drying materials, and providing process heating.

In 2026, industry trends will center on two key pillars—energy conservation and emissions reduction, and energy efficiency improvement—with the overall market steadily advancing toward greater standardization and regulatory compliance. Nanjing ZhiRe Energy-Saving Technology Co., Ltd. Leveraging years of R&D expertise, in Brand Official Website https://www.njwec.com The platform continuously updates the latest industry news, providing users with professional insights. Technical Support Hotline:  +86 18021417801 (same number on WhatsApp).

1.1 Overview of the Overall Development of the Gas-fired Hot-Air Furnace Industry in 2026

In 2026, the gas-fired hot-air furnace market is expected to maintain a steady yet upward trajectory, with demand in downstream sectors such as drying, food processing, and building-materials production sustaining an annual growth rate of around 12%. Industry insiders generally agree that increasingly stringent environmental regulations are the primary driver behind the expansion of market demand.

1.2 Market Size Data for Gas-fired Hot-Air Furnaces in 2026

According to the 2026 Industry Heating Equipment Market Report, the domestic gas-fired hot-air furnace market is projected to exceed RMB 18 billion annually. Among these, the share of Class I energy-efficiency products has risen to 62%, an increase of 17 percentage points compared with 2025, while the penetration rate of low-NOx emission products has surpassed 75%.

1.3 Changes in Demand for Core Downstream Application Scenarios

From the perspective of downstream demand distribution, the agricultural‑product drying sector accounts for the largest share of gas‑fired hot‑air furnace demand, at 34%, followed by industrial coating and medicinal‑herb drying, with shares of 22% and 18%, respectively. Increasingly, buyers no longer focus solely on initial procurement costs; instead, they prioritize long‑term operating energy consumption and compliance with emission standards as key selection criteria.

                                               Gas-fired hot air furnace : efficient energy-saving and consumption reducing equipment  for industrial waste heat recovery

II. Latest Trends in the Iterative Development of Core Technologies for Gas-fired Hot-Air Furnaces

In 2026, technological advancements in gas-fired hot-air furnaces will primarily focus on two key areas: improving energy efficiency and optimizing emissions. Many technologies that were previously at the laboratory stage have now been scaled up and deployed, with their real-world performance thoroughly validated across numerous projects.

2.1 Progress in the widespread implementation of low-nitrogen combustion technology

The mainstream fully premixed surface combustion technology has now become widespread in gas-fired hot-air furnace products across the medium- and low-power ranges, with nitrogen oxide emissions stably maintained below 30 mg/m³, fully meeting the environmental emission standards of key domestic regions.

2.2 Directions for the Optimization and Upgrading of Waste Heat Recovery Systems

The new generation of gas-fired hot-air furnaces is typically equipped with a two-stage waste-heat recovery system. Up to maximum recyclability 650 Clean hot air above ℃, The flue gas temperature can be reduced to below 60°C, and the thermal efficiency is improved by more than 12% compared with conventional products. Customized models are equipped with an intelligent control module that automatically adjusts the combustion power in response to real-time heating demand, further reducing unnecessary energy consumption. Through precise PLC Programming, Temperature control accuracy can reach ± 1 °C, and it is equipped with multiple safety protections.

III. Comparative Analysis of Key Parameters for Current Market‑Leading Gas‑Fired Hot‑Air Furnaces

Based on the publicly available specifications of mainstream products on the market in 2026, we have compiled a comparative table of the key performance indicators for conventional gas-fired hot-air furnaces and next-generation energy-efficient models, enabling users to quickly identify the product best suited to their specific operating conditions.

IV. Compliance‑Based Selection, Installation, and Operational Procedures for Gas‑Fired Hot‑Air Furnaces

Proper selection, installation, and operation are the fundamental prerequisites for ensuring the long-term, stable performance of gas-fired hot-air furnaces. Users can follow the standardized procedures below to complete the entire process and mitigate safety risks.

1. Conduct on-site surveys to confirm heating demand, required hot-air temperature, and available installation space, and collect comprehensive operating-condition data.

2. Match the gas-fired hot-air furnace model to the corresponding power rating and emission class, giving priority to products that meet Level 1 energy efficiency standards.

3. In accordance with the Urban Gas Design Safety Code, complete the installation of gas pipelines and the secure mounting of equipment, and implement appropriate fire‑prevention and isolation measures.

4. After completing the no‑load test and conducting a full‑system leak test, proceed to the next testing phase only upon confirmation that there are no potential gas leakage hazards.

5. Conduct load‑bearing commissioning to optimize combustion parameters, adjusting hot‑air temperature, pressure, and other key indicators to fall within the operating‑condition‑required range.

6. Upon delivery and commissioning, concurrently conduct safety training for operators and clearly define the key precautions for daily operations.

4.1 Key Points of Preliminary Operational Condition Surveying

During the survey phase, in addition to compiling basic heating‑related parameters, it is also necessary to verify the surrounding gas supply pressure, power‑supply stability, and the routing of the flue‑gas exhaust system, thereby preventing installation‑stage issues that could render the project unfeasible. Users with specific requirements may… Visit the Nanjing ZhiRe brand official website to contact us. Our technicians will come to your location to conduct a free on-site assessment. For technical support, please call  +86 18021417801 (same number on WhatsApp).

Gas Gas Plate Heat Exchanger

Gas Liquid Plate Heat Exchanger

4.2 Installation, Commissioning, and Acceptance Specifications Description

During the acceptance phase following installation of the gas-fired hot-air furnace, it is essential to rigorously verify the stability of combustion conditions, compliance with flue-gas emission standards, and uniformity of the outlet air temperature. Only after all parameters meet the specified requirements should the acceptance be signed off; do not proceed with commissioning in haste.

V. Opportunities and Challenges Facing the Development of the Gas-fired Hot-Air Furnace Industry

In 2026, the gas-fired hot-air furnace industry will be in a transformative phase of high-quality development, benefiting from policy-driven growth incentives while also confronting challenges in certain core technological areas that require further breakthroughs.

5.1 Industry Development Benefits Brought by the Dual-Carbon Policy

The industrial energy‑saving retrofit subsidy policies rolled out across various regions provide financial incentives for the procurement of gas‑fired hot‑air furnaces to replace highly polluting coal‑fired heating equipment, significantly reducing downstream users’ retrofit investment costs and further boosting demand in the sector.

5.2 Breakthrough Directions for Independent and Controllable Core Components

Previously, the core combustion controllers for certain high-end gas-fired hot-air furnaces relied on imports. By 2026, the domestic localization rate of related components has already risen to over 85%, and as the technology continues to mature, there remains further room for downward pressure on the overall equipment cost.

VI. Practical Tips for Daily Operation and Maintenance of Gas-fired Hot-Air Furnaces to Reduce Costs and Improve Efficiency

Proper daily operations and maintenance not only extend the service life of gas-fired hot-air furnaces but also reduce long-term energy consumption, thereby further improving the equipment’s return on investment.

6.1 Key Considerations for Routine Inspections

Routine inspections should focus on the sealing condition of gas valves, carbon buildup on burners, and the thickness of ash deposits on heat-exchange surfaces. A thorough cleaning should be performed every three months to prevent increased energy consumption caused by reduced heat-exchange efficiency.

6.2 Fault Prediction and Emergency Response Procedures

If, during operation, the gas-fired hot-air furnace experiences a drop in hot-air temperature or an abnormal flue-gas color, immediately stop the equipment and identify the root cause of the issue. Do not operate the unit with faults for extended periods to prevent potential safety hazards.