Direct-flow Stainless Steel Hot Water Boiler
Rated Hot‑water:
0.35 - 2.8 MW
Effective Water Volume:
59 - 430 m³
Circulating Water:
30 - 240 m³/h
Application Industries:
Widely applied in hotels, hospitals, schools, commercial buildings, food and pharmaceutical industries for heating and hot water demand.
Technological Advantages:
Designed direct-flow 316Ti stainless steel fins tubing, strong resistance to condensate corrosion and scaling extends lifespan by 2-3 times, the modular boiler design.
Product Introduction
Direct-flow Stainless Steel Condensing Hot Water Boiler with Dual-Core Turbine Exchange Technology. The fully premixed direct-flow stainless steel condensing hot water boiler features dual-core turbine exchange technology, achieving 360-degree heat exchange with a wider heat exchange area, offering users adequate thermal conductivity and service life.
Core Advantages
- Stainless Steel 316Ti Fins Tubing: designed direct-flow stainless steel fins tubing.

- Highly Premixed Low-NOx Combustion Technology: Equipped with fully premixed combustion technology.

- High Performance: Strong resistance to condensate corrosion and scaling extends the boiler's lifespan by 2-3 times.

- Protection Devices: Features overvoltage and undervoltage protection.

- Scientific, Rational, and Compact Design: The modular boiler design allows for more flexible equipment layout.
Specifications
Item/Model DWRS-350 DWRS-700 DWRS-1050 DWRS-1400 DWRS-2100 DWRS-2800
Rated power (kW) 350 700 1050 1400 2100 2800
Rated supply and return water temperature (℃) 85/70 85/70 85/70 85/70 85/70 85/70
Heating area (㎡) 5000-7000 9000-14000 14000-20000 18000-28000 28000-40000 37000-56000
Effective water volume (m³) 59 85 195 215 390 430
Circulating water volume (m³/h) 30 60 90 120 180 240
Thermal efficiency (%) 103 103 103 103.5 103.5 103.5
Rated pressure (MPa) Atmospheric Atmospheric Atmospheric Atmospheric Atmospheric Atmospheric
Natural gas consumption (Nm³/h) 33.5 67 100.5 134 201 268
Power supply (V/Hz) 220/50 220/50 380/50 380/50 380/50 380/50
Supply and return water inlet (mm) DN65 DN100 DN125 DN150 DN125×2 DN150×2
Chimney φ (mm) 200 250 250 300 250×2 300×2
Flue gas temperature (℃) <60 <60 <60 <60 <60 <60
Noise dB(A) ≤40 ≤40 ≤40 ≤40 ≤40 ≤40
Nitrogen oxides (NOₓ) (mg/Nm³) <30 <30 <30 <30 <30 <30
Overall dimensions L (mm) 1810 2425 2500 2610 3000 3150
Overall dimensions W (mm) 985 1085 1235 1235 2235 2235
Overall dimensions H (mm) 1280 1460 1730 1780 1730 1780
Weight (kg) 700 1000 1200 1390 2300 2530

Notes: * The above parameters are for reference only, subject to actual product specifications.

Why Choose Us
International Certifications
ISO Quality Management System Certificate
EAC, CU-TR Certificate
EAC, CU-TR Certificate
EN/CE Certificate
ASME-S Certificate
ASME-U Certificate
ISO Environmental Management System Certificate
ISO Occupational Health and Safety Management System Certificate
Advanced Manufacturing
R&D Center

R&D Center

Fully automatic welding

Fully Automatic Welding

Fully automatic tube

Fully Automatic Tube

Steel plate rolling

Steel Plate Rolling

Tube bending

Tube Bending

CNC cutting

CNC Cutting

Large vertical lathe

Large Vertical Lathe

quenching treatment

Quenching Treatment

X-ray flaw detection

X-ray Flaw Detection

Trusted by Customers
XHJ Boiler have established Long-term cooperation with world‑renowned enterprises, and consistently gain high‑level trust and recognition from customers all over the world.
SAPPI

SAPPI

GAZPROM

GAZPROM

ADNOC

ADNOC

COCACOLA

COCACOLA

CDPC

CDPC

SINOPEC

SINOPEC

CNPC

CNPC

CHN ENERGY

CHN ENERGY

BYD

BYD

CP FOOD

CP FOOD

Factory Direct Supply

XHJ Boiler specializes in the R&D, production and sales of boilers, pressure vessels, heat exchange equipment and other related products. Supply customers with one-stop boiler and pressure vessel solutions and have won extensive recognition and positive reviews globally.

20 +
Experience
70 +
Countries
100 +
Engineers
5000 +
Projects

XHJ BOILER recommends Gas&Oil Direct-Flow Stainless Steel Hot Water Boiler Manufacturer to help you understand product manufacturing process, equipment features, and other details. Please visit www.xhjboiler.com and view related application cases, blog updates, and all products.

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