Description

Vaillant 0020038679 Heat Exchanger Gasket Seal for Ecotec & Ecotec Plus Boilers

The Vaillant heat exchanger gasket seal 0020038679 helps create a secure seal between boiler components, so the heating system can operate safely and efficiently. Over time, seals can become worn or damaged, which may lead to leaks or reduced boiler performance. Therefore, replacing the gasket with this brand new part helps maintain proper sealing, supports reliable operation, and reduces the risk of water leakage inside the appliance.

Compatible Boilers

This part is compatible with the following boiler ranges:

Glowworm Betacom Series

• Betacom 2 24 – GC No. 47-019-16
• Betacom 2 28 – GC No. 47-019-17
• Betacom 24A – GC No. 47-019-13
• Betacom 28A – GC No. 47-019-14

Glowworm Easicom Series

• Easicom 24 – GC No. 47-019-18
• Easicom 28 – GC No. 47-019-19

Glowworm Energy Series

• Energy 35 Store – GC No. 47-019-37

Glowworm CXI Series

• 24CXI – GC No. 47-047-23
• 30CXI – GC No. 47-047-24
• 38CXI – GC No. 47-047-27

Glowworm HXI Series

• 12HXI – GC No. 41-047-73
• 15HXI – GC No. 41-047-74
• 18HXI – GC No. 41-047-63
• 24HXI – GC No. 41-047-69
• 30HXI – GC No. 41-047-64
• 38HXI – GC No. 41-047-71

Glowworm SXI Series

• 18SXI – GC No. 41-047-72
• 30SXI – GC No. 41-047-62

Glowworm Ultimate Series

• Ultimate 30 C – GC No. 47-019-20
• Ultimate 35 C – GC No. 47-019-21

Glowworm Ultracom 2 Series

• 12 SXI – GC No. 41-019-12
• 18 SXI – GC No. 41-019-13
• 24 CXI – GC No. 47-019-10
• 30 CXI – GC No. 47-019-11
• 30 SXI – GC No. 41-019-14
• 35 CXI – GC No. 47-019-12
• 35 Store – GC No. 47-019-15

Glowworm Ultracom Series

• 24 CX – GC No. 47-019-06
• 30 CX – GC No. 47-019-07
• 24CXI – GC No. 47-019-01
• 30CXI – GC No. 47-019-02
• 38CXI – GC No. 47-019-03
• 12 HXI – GC No. 41-019-01
• 15 HXI – GC No. 41-019-02
• 18 HXI – GC No. 41-019-03
• 24 HXI – GC No. 41-019-04
• 30HXI – GC No. 41-019-05
• 38 HXI – GC No. 41-019-06
• 18 SXI – GC No. 41-019-07
• 30 SXI – GC No. 41-019-08

Glowworm Ultrapower Series

• 100SXI – GC No. 41-019-09
• SXI 170 – GC No. 41-019-10

Other Glowworm Models

• BG 330 – GC No. 41-047-75
• Xtramax HE – GC No. 47-047-29

Vaillant Ecomax Series

• 613 VU126 E-C – GC No. 41-044-20
• 613/2 E VU126/2-C – GC No. 41-044-27
• 618 VU196 E-C – GC No. 41-044-21
• 618/2E VU186/2-C – GC No. 41-044-28
• 622 VU246 E-C – GC No. 41-044-22
• 622/2E VU226/2-C – GC No. 41-044-29
• 635 E VU356-C – GC No. 41-044-43
• 824/2E VUW246/2-C – GC No. 47-044-12
• 824E VUW246E-C – GC No. 47-044-07
• 828/2E VUW286/2-C – GC No. 47-044-17
• 828E VUW286E-C – GC No. 47-044-08
• 835E VUW356-C – GC No. 47-044-27

Vaillant EcoTEC Exclusive Series

• 832 VUW 32/4 – GC No. 47-044-37
• 835 VUW 356/5-7 – GC No. 47-044-66
• 838 VUW 386/4 – GC No. 47-044-38
• 843 VUW 436/5-7 – GC No. 47-044-67

Vaillant EcoTEC Plus Series

Compatible with multiple EcoTEC Plus models including:

• 415, 418, 428, 438
• 612, 615, 618, 624, 630, 637
• 824, 825, 831, 832, 835, 837, 838
• 937, 938

Vaillant EcoTEC Pro Series

Compatible with multiple EcoTEC Pro models including:

• Pro 22
• Pro 24
• Pro 28
• Pro 30

Vaillant Sustain Series

• Sustain 24 – GC No. 47-044-79
• Sustain 28 – GC No. 47-044-80
• Sustain 34 – GC No. 47-044-81

Other Vaillant Models

• Exclusive 627 VU 256/5-7
• EcoTEC Plus VU GB 446/5-5 H
• EcoTEC Plus VU GB 606/5-5 H
• EcoTEC VU 466/4-5
• EcoTEC VU GB 466/4-5 H

Why Choose This Product?

This brand new Vaillant gasket seal offers a reliable replacement for worn or damaged seals. It helps maintain proper sealing within the boiler, while also supporting safe and efficient heating performance.

Delivery and Return

Order before 1 PM for same-day dispatch with standard and next-day delivery options available. Returns are accepted within 30 days if the item remains unused and in original packaging. Always use a qualified engineer for installation.

Frequently Asked Questions

1. What does this gasket seal do?
This gasket creates a secure seal between boiler components, which helps prevent leaks and supports safe operation. A damaged seal can reduce boiler efficiency and lead to internal water leakage.

2. Is this part brand new?
Yes, this Vaillant heat exchanger gasket seal is supplied brand new. It is designed as a direct replacement for the original component.

3. Why should I replace a worn gasket seal?
A worn gasket may allow leaks or pressure loss inside the boiler. Replacing it helps maintain reliable heating performance and proper system sealing.

4. How do I check compatibility?
Always match part number 0020038679 with your existing component and boiler model. This helps ensure the correct replacement part is ordered.

5. Who should install this gasket seal?
A qualified heating engineer should install internal boiler components and seals. Professional installation helps support safe fitting and reliable operation.