Vertical serpentine tube structure enables large-scale, modular thermal oil heaters. Multiple energy-saving technologies achieve 94% thermal efficiency. Advanced staged combustion and flue gas recirculation technology achieves NOx below 50 mg/m³. Thermal Efficiency: 94% Design Pressure: 1.0–2.5 MPa Fluid Temperature Rise: 40°C–100°C Rated Flow: ≤1,500 m³/h NOx Emissions: ≤50 mg/Nm³ Main Applications: Large oil and gas processing plants, long-distance pipeline stations, offshore platforms