Combi 24-28KW Condensing Gas Boiler Stainless Steel Heat Exchanger Units

Product Introduction

24-28KW Stainless Steel Heat Exchanger Solutions for Home Heating and Hot Water Condensing Gas Boilers

Introduction & Key Advantages

What Is a Stainless Steel Condensing Heat Exchanger?

A stainless steel condensing heat exchanger captures the latent heat from water vapor in exhaust flue gases and transforms it into usable thermal energy through condensation technology.

With advanced heat recovery performance, it can deliver 107–109% thermal efficiency, while conventional heating systems generally provide only 85–95% efficiency.

Main advantages:

• Maximized heat recovery
• Improved energy-saving performance
• Reduced fuel usage
• More efficient heating operation

What Is a Gas Condensing Heat Exchanger?

A gas condensing heat exchanger adopts a full premix technology, which allows precise gas and air blending before combustion to achieve cleaner and more efficient burning.

Features include:

• Lower pollutant emissions
• Reliable heating stability
• Increased thermal efficiency

Where Is It Used?

Key Advantages

1. Much Higher Efficiency — Saves Money

· Thermal efficiency: 107–109% (vs. 85–95% for ordinary boilers)

· Less gas used for the same heat output

· End users pay less on their energy bills

2. Stainless Steel — Built to Last

· Made from stainless steel

· Handles acidic condensate (pH 3–5) with no problem

· No rust. No corrosion. No leaks.

· Expected service life: 15+ years

3. Low Emissions — Clean & Green

· Meets EU ErP Directive and all major global environmental standards

· Helps customers stay ahead of tightening regulations

4. Smart Design — Better Performance

· Spiral finned tube structure increases heat transfer surface by 40–60%

· Multi-pass water circuit design for stronger turbulence and better heat exchange

· Low water resistance — works with smaller pumps → saves electricity

5. Quiet & Stable

· Smooth flame, no pulsation

· Quiet operation — suitable for homes and hospitals

· No hot spots → no cracking, no breakdowns

6. OEM & Custom Service Available

· Standard sizes in stock for quick delivery

· Custom design & tooling to match your specific boiler model

· Full technical support: heat load calculation, product selection, testing

· Your brand logo can be applied (OEM/ODM welcome)

Why Choose Us?

You get the same quality. You keep more profit. You get better service.

Simple Comparison

Our Promise to You

We provide high-performance products and comprehensive support to help global customers achieve reliable and cost-effective solutions.

Our advantages:

• Advanced manufacturing technology — Equivalent technical solutions used by leading global suppliers
• Certified quality assurance — ISO certified manufacturing with consistent quality control
• Competitive pricing — Optimized production costs to create better business value
• Quick response and delivery — Shorter lead times for faster international shipments
• Professional service support — Full guidance covering product selection, installation advice, and after-sales assistance

FAQ

We are ready to be your trusted manufacturing partner for full premix condensing stainless steel heat exchangers.

Contact us today for:

· Product catalog and price list

· Custom design consultation

· Fast sample evaluation

· OEM/ODM cooperation discussion

Certificate

Product packaging