Description
Vaillant 065113 Heat Exchanger (145mm) Fits Ecomax 613, 618, 824 Series
The Vaillant 145mm Heat Exchanger (Part Number: 065113) is a genuine OEM component specifically designed for a range of Ecomax condensing system and combi boilers. This durable and compact heat exchanger is engineered to restore efficient heating and hot water function in legacy systems.
Ideal for maintaining older Vaillant models still in use, this 145mm unit fits both first-generation and /2E versions of the Ecomax range.
✅ Compatible Boiler Models & GC Numbers:
🔧 Condensing System Boilers:
Ecomax 613 VU126 E-C (2000–2001) – GC No: 41-044-20
Ecomax 613/2E VU126/2-C (2001–2007) – GC No: 41-044-27
Ecomax 618 VU196 E-C (2000–2001) – GC No: 41-044-21
🔧 Combi Boilers:
Ecomax 824E VUW 246E-C (1999–2001) – GC No: 47-044-07
Ecomax 824/2E VUW 246/2-C (2001–2007) – GC No: 47-044-12
Please note: Before placing your order you must check your part matches the Manufacturer Part Number stated above.
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     Prices: Please note all prices are inclusive of VAT.
At Heating and catering parts,
We certainly strive to provide the best possible customer experience. Consequently, we understand that sometimes a product may not meet your expectations or requirements. That is why we offer a comprehensive 30-day return policy to ensure your satisfaction. Please read our full Return Policy
We appreciate you buying from our store. Usually, If your order is received by 1:00 p.m. EST (Monday–Friday), we will ship the item the same day. You can count on us to deliver quickly and safely. In other words, we take pride in our prompt and trustworthy service and will do everything we can to ensure the safe arrival of your package.
Please note that weekends are not included in our next-day delivery guarantee. Delivery for orders placed on Fridays (the next day) is on the following Monday. At the same time select the Saturday delivery option at checkout if you’d like your purchases delivered on a weekend day.
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Frequently Asked Questions
1. Which Vaillant boilers is the 065113 heat exchanger compatible with?
The 145mm heat exchanger fits several Vaillant Ecomax models. Condensing system boilers include Ecomax 613 VU126 E-C, Ecomax 613/2E VU126/2-C, and Ecomax 618 VU196 E-C. Combi boilers include Ecomax 824E VUW 246E-C and Ecomax 824/2E VUW 246/2-C. Always check your boiler’s manufacturer part number before purchase.
2. Is this a genuine Vaillant part?
Yes, the 065113 heat exchanger is a genuine OEM Vaillant component, specifically engineered to maintain the performance and reliability of Ecomax boilers.
3. What is the purpose of this heat exchanger?
The heat exchanger transfers heat from the boiler’s combustion process to the water circulating through the system. This ensures efficient heating and hot water supply for your home or property.
4. Can this part be used in older Ecomax boilers?
Yes, it is compatible with both first-generation and /2E versions of the Ecomax 613, 618, and 824 series, making it ideal for maintaining older boilers still in use.
5. How do I know if this heat exchanger is the correct replacement part?
Always check the manufacturer part number (065113) against the part currently installed in your boiler. Verifying the GC number and model ensures correct fitment and avoids compatibility issues.
