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

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

24-28KW combi condensing gas boiler

stainless steel heat exchanger boiler

condensing gas boiler with warranty

Place of Origin:

China

Brand Name:

UP

Certification:

CE ISO

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Product Details
Designtype:
Shell And Tube
Surfacetreatment:
Electropolished
Installationtype:
Horizontal
Flowarrangement:
Counterflow
Type:
Shell And Tube
Operatingtemperature:
Up To 200°C
Highlight:

24-28KW combi condensing gas boiler

,

stainless steel heat exchanger boiler

,

condensing gas boiler with warranty

Payment & Shipping Terms
Minimum Order Quantity
1
Packaging Details
Standard seaworthy package
Delivery Time
30days
Payment Terms
T/T
Product Description

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 Condensing Stainless Steel Heat Exchanger?

A condensing stainless steel heat exchanger is designed to recover the hidden heat energy contained in flue gas vapor. During operation, it cools the vapor and converts it into liquid condensate, allowing additional heat recovery and improving overall heating efficiency.

It can achieve 107–109% thermal efficiency, compared with traditional heating systems that typically operate at 85–95% efficiency.

Key benefits include:

  • Improved energy utilization
  • Reduced fuel consumption
  • Lower operating costs
  • Enhanced heating system efficiency


Where Is It Used?

Application

Examples

Home Heating

wall-hanging boilers,

floor-standing boilers

Hot Water

Instant water heaters, combi boilers

Commercial Buildings

Hotels, hospitals, schools, offices

Industrial

Process heating, waste heat recovery

Pool Heating

Commercial swimming pools, spa systems


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

Emission

Our Product

Ordinary Boiler

NOx

≤ 30 mg/kWh

80–200 mg/kWh

CO

≤ 10 mg/kWh

50–150 mg/kWh

· 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?

Factor

Us

Quality

Same level — 20+ years of expertise

Price

Competitive — better margin for you

Lead Time

Fast production — shorter wait

Communication

Direct & fast — no language barriers

Customization

Flexible & responsive

Support

Dedicated technical team

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


Simple Comparison

Feature

Our Condensing Heat Exchanger

Ordinary Copper Tube

Efficiency

107–108%

92–96%

Life Span

15+ years

8–12 years

Condensate Resistance

 Excellent

× Corrodes

Weight (same power)

 Light

Heavy

NOx Emissions

 Very Low

× High

Maintenance Cost

 Low

Medium-High


Our Promise to You

We are committed to providing reliable heat exchanger solutions with the same advanced technology, strict quality control, and professional service standards as leading manufacturers worldwide.

Our commitments include:

  • Same advanced technology — Using proven technologies comparable to top industry manufacturers
  • Same quality standards — Manufactured under ISO certified production processes with strict quality inspection
  • Better cost advantage — Competitive pricing to help customers improve profit margins
  • Faster delivery service — Efficient production and logistics to avoid long overseas waiting times
  • Complete customer support — Professional assistance from product selection to after-sales service


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

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Product packaging

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