Product Specification

Baxi 5122147 new Heat Exchanger 4 combi gas boiler spare parts spares

Baxi 5122147 new  4 Element Heat Exchanger

The Baxi 5122147 new  4 Element Heat Exchanger is a high-quality replacement for worn or damaged primary heat exchangers fitted to a wide range of Baxi, Potterton and Main boilers. It transfers heat efficiently from the burner to the central heating system, ensuring reliable heating and hot water performance.

Rather than replacing your entire boiler, this professionally refurbished heat exchanger provides a cost-effective solution. Furthermore, every unit is thoroughly cleaned, inspected and pressure tested before dispatch. Consequently, you receive a reliable replacement at a fraction of the cost of buying new.

This part fits the following boilers

Compatible Boilers

Baxi Duo Tec HE Series

• Duo Tec 24 HE A (After Serial BTG0815 Issue 9) — GC 47-075-35
• Duo Tec 28 HE A (After Serial CAC0929 Issue 9) — GC 47-075-36

Baxi Duo Tec Combi ErP Series

• Duo Tec 24 Combi ErP AC — 47-075-96 AC
• Duo Tec 24 Combi ErP BC — 47-075-96 BC
• Duo Tec 24 Combi ErP CC — 47-075-96 CC
• Duo Tec 24 Combi ErP DC — 47-075-96 DC
• Duo Tec 28 Combi ErP AC — 47-075-97 AC
• Duo Tec 28 Combi ErP BC — 47-075-97 BC
• Duo Tec 28 Combi ErP CC — 47-075-97 CC
• Duo Tec 28 Combi ErP DC — 47-075-97 DC

Baxi HE System Series

• 15 HE System — 41-075-52
• 18 HE System — 41-075-53
• 24 HE System (After Serial BTF0932) — 41-075-47

Baxi Megaflo HE Series

• Megaflo 15 HE A — 41-075-55
• Megaflo 18 HE A — 41-075-56
• Megaflo 24 HE A — 41-075-57

Baxi System ErP Series

• 15 System ErP AC — 41-470-18 AC
• 15 System ErP BC — 41-470-18 BC
• 15 System ErP CC — 41-470-18 CC
• 18 System ErP AC — 41-470-19 AC
• 18 System ErP BC — 41-470-19 BC
• 18 System ErP CC — 41-470-17 CC
• 24 System ErP AC — 41-470-20 AC
• 24 System ErP BC — 41-470-20 BC
• 24 System ErP CC — 41-470-20 CC

Baxi Platinum Series

• Platinum Combi 24 HE — 47-075-27
• Platinum Combi 24 HE A — 47-075-31
• Platinum Combi 28 HE — 47-075-28
• Platinum Combi 28 HE A — 47-075-32

Baxi Combi ErP Series

• 24 Combi ErP AC — 47-077-04 AC
• 24 Combi ErP BC — 47-077-04 BC
• 24 Combi ErP CC — 47-077-04 CC
• 24 Combi ErP DC — 47-077-04 DC
• 24 Combi ErP EC — 47-077-04 EC
• 28 Combi ErP AC — 47-077-05 AC
• 28 Combi ErP BC — 47-077-05 BC
• 28 Combi ErP CC — 47-077-05 CC
• 28 Combi ErP DC — 47-077-05 DC
• 28 Combi ErP EC — 47-077-05 EC

Potterton Gold Series

• Gold 24 HE A Combi — 47-393-18
• Gold 28 HE A Combi — 47-393-19

Gold 24 Combi ErP

• AC — 47-393-43
• BC/CC — 47-393-43 BC
• DC — 47-393-43 DC
• EC — 47-393-43 EC

Gold 28 Combi ErP

• AC — 47-393-44
• BC/CC — 47-393-44 BC
• DC — 47-393-44 DC
• EC — 47-393-44 EC

Gold 28 Combi ErP LPG

• AC — 47-393-45

Main Boilers

Part number 5122147 is also fitted to selected Main boilers using the same manufacturer part number.

Meets EU ErP Directive and all major global environmental standards

· Helps customers stay ahead of tightening regulations

Advanced Structural Design for Improved Heat Transfer Performance

· Spiral finned tube technology expands the heat exchange area by 40–60%, improving thermal transfer efficiency

· Multi-pass water flow channel design creates stronger turbulence, enhancing heat exchange performance and temperature stability

· Low flow resistance design reduces pump energy consumption and helps heating systems operate with smaller circulation pumps

 Quiet Operation and Reliable System Stability

· Optimized heat exchange structure ensures smooth combustion performance with reduced flame fluctuation

· Low noise operation makes it suitable for residential heating systems, apartments, hotels, and healthcare facilities

· Uniform heat distribution eliminates overheating areas, reducing the risk of cracking, deformation, and system failure

Flexible OEM and Customized Manufacturing Services

· Standard stainless steel heat exchanger models are available for fast production and quick delivery

· Customized designs, tooling, and specifications can be developed according to different boiler models and application requirements

· Professional technical support is provided, including heat load calculation, product selection guidance, and performance testing

· OEM and ODM services are available with customized branding, including logo marking and product packaging solutions

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

FAQ & Professional Support

We are committed to becoming your reliable manufacturing partner for full premix condensing stainless steel heat exchangers, providing high efficiency, durable quality, and customized solutions for global boiler manufacturers and heating system suppliers.

With advanced production technology and professional engineering support, we help customers develop reliable heat exchanger solutions that meet different boiler applications and market requirements.

Contact Us Today For:

· Complete product catalogs, technical specifications, and competitive price lists

· Professional custom design consultation based on your boiler system requirements

· Fast sample production and evaluation services for product verification

· Flexible OEM and ODM cooperation opportunities with customized solutions

· Technical assistance including product selection, performance optimization, and application support

Build a Long-Term Partnership With Our Stainless Steel Heat Exchanger Factory

Whether you need standard heat exchanger models or customized solutions for new boiler projects, our experienced team provides reliable manufacturing support, quality assurance, and efficient service to help your business grow in global markets

Certificate

Product packaging