Recommendation Of High Efficiency Natural Gas Boiler

We recommend 4 series of high-efficiency natural gas boilers for you, with thermal efficiency up to 107% (low calorific value). Steam output 1 – 100t/hr.

1. Integrated Condensing Steam Boiler

1.1 Capacity & Efficiency

• Steam output: 2–20 t/h.

• Thermal efficiency: 100.7–103.7 % (on LHV basis).

1.2 Advantages & Problems Solved

• Recovers latent heat from flue gas, boosting efficiency by >10 % and cutting fuel costs.

• Flue outlets at ~90 °C reduce NOₓ/SOₓ emissions and environmental impact.

• Burner‑and‑body integration shrinks footprint and simplifies maintenance.

1.3 Core Technologies

• Three‑pass combustion with economizer + air preheater for staged heat extraction.

• Closed condensate recovery reuses condensate heat.

• Built‑in burner in condenser: micro‑positive‑pressure combustion ensures stable heat transfer.

1.4 Ideal Scenarios

• Process steam in chemical, pharmaceutical, and textile plants.

• Building services: hotels, hospitals, clinics, university sterilization.

2. H6 Commercial Gas Hot‑Water Boiler

2.1 Capacity & Efficiency

• Output: 0.7–2.8 MW.

• Thermal efficiency: 97.2–106 %.

2.2 Advantages & Problems Solved

• Ultra‑high heat transfer: winged heat‑exchange tubes boost area by 5×.

• Compact footprint: 40 % smaller than conventional fire‑tube designs.

• Plug‑and‑play: only water, gas, chimney and power connections needed.

• Low NOₓ via full‑premix and end‑condensation technologies.

2.3 Core Technologies

• Full‑premixed combustion for complete fuel utilization and stable flame.

• Crossing wing‑shaped tubes for maximized convective heat transfer.

• Intelligent welding & NC cutting for precision manufacturing.

2.4 Ideal Scenarios

• Space heating in hotels, shopping centers, schools and office towers.

3. T7 Vacuum Hot‑Water Boiler

3.1 Capacity & Efficiency

• Output: 2.8–70.0 MW.

• Thermal efficiency: ≥105.5 % under vacuum operation.

3.2 Advantages & Problems Solved

• Negative‑pressure operation (<0 bar) prevents leaks and explosion risk.

• Corrosion‑free: de‑aerated pure water eliminates scale and rust.

• Small footprint via wing‑condensing & integrated vacuum components.

• Modular sequencing: automatic boiler count and load sharing.

• Low NOₓ and clean emissions.

3.3 Core Technologies

• Deep‑matched combustion & heat‑transfer: no compromise between burner and exchanger.

• Auto‑vacuum maintenance to sustain optimal negative pressure.

• Counter‑flow condensing economizer recovers vapor’s latent heat.

• PLC‑based sequencing for intelligent modular operation.

3.4 Ideal Scenarios

• District and campus heating, hospitals requiring both hot water and steam, large commercial complexes.

4. SZS Gas/Oil‑Fired Water‑Tube Steam Boiler

4.1 Capacity & Efficiency

• Steam capacity: 10–50 t/h (customizable up to 110 t/h).

• Thermal efficiency: 100–104 % (condensing waste‑heat recovery).

4.2 Advantages & Problems Solved

• Cascade waste‑heat recovery: multi‑stage economizer + tail condenser reduces flue >100 °C → <100 °C.

• High‑quality steam for precision processes.

• Rapid field assembly from skid modules—cuts installation to days.

• Wide fuel flexibility: natural gas, LPG, coke‑oven gas, heavy oil, biomass gas, etc.

4.3 Core Technologies

• Double‑drum D‑shape with membrane‑wall panels for strength and thermal efficiency.

• Integrated economizer & air‑preheater network.

• FGR (flue‑gas recirculation) to suppress NOₓ.

• Modular skid design for plug‑and‑play erection steam boiler.

4.4 Ideal Scenarios

• Heavy‑duty process steam in chemical plants, pulp & paper, textiles, food & beverage, and pharmaceutical lines.

• Central power & heating stations for industrial parks and district energy.

By matching each boiler’s capacity and efficiency to the thermal demands and environmental goals of different facilities, one can ensure both fuel cost savings and emissions compliance—all while tapping into advanced condensing, premix‑combustion, vacuum‑pressure, and waste‑heat recovery technologies.

Learn more about high-efficiency boilers and quotes