| Domestic Wall-Hung Heating Boiler | Approximately 18–35 kW heat output | - Compact wall-mounted design
- Heating-only or combi-heating configuration
- Modulating gas burner and electronic ignition
- Sealed combustion and balanced flue options
| Usually designed for high seasonal efficiency; condensing models can recover latent heat from flue gas when operated with low return-water temperatures. | Urban apartments, villas, small residential buildings, and individual household heating systems | GB 25034-2020 for domestic gas-fired heating water boilers; applicable energy-efficiency requirements may also be relevant under GB 20665-2020 | Verify gas type, inlet pressure, electrical frequency, flue configuration, safety certification, and local installation rules. |
| Domestic Condensing Gas Boiler | Approximately 20–40 kW for residential models; larger modular systems are also available | - Stainless-steel or corrosion-resistant heat exchanger
- Low-temperature return-water operation
- Condensate drainage requirement
- Advanced combustion control
| Seasonal efficiency is commonly higher than that of conventional non-condensing designs, subject to return-water temperature, system design, and operating conditions. | New residential developments, low-temperature radiant heating, high-efficiency replacement projects, and energy-saving renovations | GB 25034-2020; energy-efficiency evaluation should be checked against the applicable product category and current regulatory requirements | Confirm condensate treatment, drainage compatibility, minimum modulation rate, spare parts, and operating performance at the destination climate. |
| Commercial Modular Gas Boiler | Typically 60–2,000 kW total system capacity through multiple modules | - Multiple boiler modules connected in parallel
- Staged or cascade control
- Flexible redundancy and partial-load operation
- Integrated pumps, controls, and safety devices may be available
| System efficiency varies with module loading, hydraulic design, controls, and flue arrangement; cascade systems improve turndown and redundancy. | Hotels, schools, hospitals, office buildings, apartment complexes, and district-level heating substations | GB 50041-2020 for boiler plant design; GB 13271-2014 may apply to atmospheric pollutant emissions from applicable boiler installations | Check hydraulic separation, cascade-control protocol, chimney design, maintenance access, and conformity with the importing country’s pressure-equipment rules. |
| Commercial Hot-Water Boiler | Approximately 0.35–10 MW thermal output | - Fire-tube or water-tube construction
- Hot-water heating rather than steam generation
- Burner management and automatic safety interlocks
- Suitable for closed-loop heating systems
| Performance depends on boiler construction, burner adjustment, water temperature, excess air, and heat-loss control. | Central heating systems, industrial parks, campuses, public buildings, agricultural facilities, and process hot-water systems | GB/T 10180-2017 for performance testing of industrial boilers; GB 50041-2020 for boiler-house design; GB 13271-2014 for applicable emissions requirements | Confirm design pressure, design temperature, inspection requirements, burner compatibility, water-treatment conditions, and emissions limits. |
| Steam Boiler Fired by Natural Gas | Approximately 0.5–20 t/h steam capacity for common industrial installations | - Fire-tube or water-tube steam generation
- Automatic burner and feedwater control
- Steam drum, safety valve, blowdown, and water-level protection
- Available in saturated-steam configurations
| Fuel consumption and efficiency depend on steam pressure, feedwater temperature, blowdown rate, stack temperature, and burner excess-air control. | Food processing, textile production, pharmaceutical manufacturing, chemical processing, laundries, and institutional kitchens | Applicable boiler safety supervision requirements, GB/T 10180-2017 for performance testing, GB 50041-2020 for boiler plant design, and GB 13271-2014 where applicable | Review pressure-vessel registration, inspection procedures, steam quality, water treatment, export documentation, and destination-country safety codes. |
| Low-NOx Natural Gas Boiler System | Available across domestic, commercial, and industrial capacity ranges | - Premixed or staged combustion technology
- Optimized burner geometry
- Flue-gas recirculation may be used on selected systems
- Designed to reduce nitrogen oxide formation
| NOx performance is affected by burner design, combustion temperature, oxygen concentration, gas composition, load, and measurement method. | Air-quality-control zones, dense urban areas, commercial heating projects, and industrial facilities with stricter emissions limits | GB 13271-2014 may apply to boiler emissions; local Chinese environmental authorities can impose requirements stricter than national limits | Obtain certified emissions test conditions, fuel specifications, monitoring method, altitude correction, and local environmental approval requirements. |
| Integrated Gas Boiler and Hot-Water System | Approximately 100 kW–5 MW, depending on configuration | - Boiler, pumps, controls, expansion equipment, and heat exchangers may be packaged together
- Suitable for domestic hot water and space heating
- Factory-tested skid or containerized arrangements available
| Overall system performance depends on boiler efficiency, circulation-pump power, storage losses, control strategy, and hot-water demand profile. | Hotels, hospitals, residential complexes, sports facilities, factories, and remote or rapidly installed energy centers | GB 50041-2020 and other applicable building, gas, electrical, fire-safety, pressure-equipment, and environmental requirements | Check package dimensions, lifting points, control interfaces, water quality, gas-train arrangement, commissioning support, and after-sales service capability. |
| Natural Gas Boiler for Industrial Process Heating | Approximately 1–30 MW or higher for engineered projects | - Customized thermal-fluid, hot-water, or steam configuration
- Burner selected for process temperature and load profile
- May include economizer, air preheater, or waste-heat recovery
- Designed for continuous or batch operation
| Performance is project-specific and should be confirmed through guaranteed fuel consumption, output, emissions, and turndown data. | Manufacturing plants, food and beverage production, chemical plants, electronics facilities, and industrial drying operations | Applicable requirements may include GB 13271-2014, GB/T 10180-2017, GB 50041-2020, pressure-equipment rules, and project-specific local environmental standards | Request a complete technical schedule covering fuel composition, operating envelope, control philosophy, safety interlocks, emissions guarantees, and commissioning tests. |