Premium 24-28KW Stainless Steel Condensing Heat Exchanger Unit for Residential Boilers

Vaillant Main Stainless Steel Heat Exchangers 24-28KW

Product Introduction

 Premium Stainless Steel Heat Exchangers 24-28KW with Long Service Life for Condensing Gas Boilers and Household Heating Applications

Introduction & Key Advantages

What Is a Stainless Steel Industrial Grade Heat Exchanger for Condensing Gas Boilers
    A condensing heat exchanger extracts latent heat from water vapor in hot exhaust gases and converts it into additional heating energy.
    Up to 107–109% thermal efficiency — much higher than standard systems (85–95%).
    Improved heat recovery. Less fuel consumption. Better cost savings.

What Is a Gas Condensing Heat Exchanger?
Full premix technology ensures complete gas and air blending before combustion. This clean-burning method offers:
  Very low emissions

  Reliable system operation
  Higher thermal efficiency using the same fuel amount

Where Is It Used?

Key Advantages

1. Advanced Energy Saving Performance — Cost Effective Operation

· Delivers high thermal efficiency of 107–109% for condensing boiler applications
· Compared with ordinary boilers offering 85–95% efficiency, it reduces fuel consumption significantly
· Helps customers lower energy bills through improved heating efficiency

2. Strong Stainless Steel Structure — Built for Durability

· Constructed from durable stainless steel alloy
· Designed to operate safely in acidic condensate environments
· Prevents common problems such as rust, corrosion, and leakage
· Provides dependable performance with a 15+ year service expectation

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

 Same technology as leading manufacturers
 Same quality standards — ISO certified production
 Better price — improved profit margins
 Faster delivery — no long overseas waits
 Full support — from selection to after-sales

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