Combi Stainless Steel Main Thermal Heat Exchangers 24-28KW

Product Introduction

High Durability Stainless Steel Heat Exchangers 24-28KW Designed for Condensing Gas Boilers and Household Water Heating Applications

Introduction & Key Advantages

What Is a Stainless Steel Heat Optimization Exchanger for Condensing Boilers
A condensing heat exchanger extracts hidden thermal energy from flue gas water vapor and converts it into reusable heat.
Up to 107–109% thermal efficiency — much higher than standard heating systems (85–95%).
More efficient heat production. Reduced fuel use. Better savings.

What Is a Gas Condensing Heat Exchanger?
Gas and air are perfectly combined in a full premix combustion system before burning. This clean process delivers:
Minimal harmful gas emissions
Consistent and safe functionality
Improved thermal efficiency from equal fuel usage

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

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