Vaillant 0020231443 DN 100 Wall Seal | Genuine Replacement Spare Part
- SKU
- EDDVAILLANTSPARES66
Our Expert's Opinion
"Offers a neat, secure finish for flue penetrations through external walls, combining professional appearance with essential weather proofing."Vaillant 0020231443 DN 100 Seal
The Vaillant 0020231443 Wall Seal DN 100 is a high-quality, manufacturer-approved accessory designed for use with compatible Vaillant condensing boiler installations. When a flue passes through an external wall, a clean, weather-resistant finish is essential—not only for aesthetics but for system performance and long-term durability. This wall seal ensures the flue penetration is neatly covered, the surrounding wall aperture is closed off, and the external finish matches the boiler’s trim design. Moulded in a robust, UV-stable white material, this seal is engineered to withstand external environmental conditions such as rain, frost, sunlight and thermal cycling. The “DN 100” designation confirms the 100 mm diameter flue it is designed to accommodate, ensuring correct fit and compliance with flue manufacturer and boiler installer requirements. Using the correct wall seal helps prevent water ingress behind the flue pipe, reduces cold drafts that can affect boiler performance, and avoids misalignment or gaps that could degrade the installation appearance or function.
Vaillant provide a 1 year warranty on all genuine spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
This is a genuine Vaillant spare part supplied directly from the manufacturer. We ensure full compatibility, reliable performance and the highest quality standards.
| MPN | 20231443 |
|---|---|
| Product Code | EDDVAILLANTSPARES66 |
| Compatible With: Product Code (SKU) | ecoTEC Plus range (100mm flue); ecoTEC Pro range (100mm flue) |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Vaillant |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
Vaillant 0020231443 DN 100 Seal
The Vaillant 0020231443 Wall Seal DN 100 is a high-quality, manufacturer-approved accessory designed for use with compatible Vaillant condensing boiler installations. When a flue passes through an external wall, a clean, weather-resistant finish is essential—not only for aesthetics but for system performance and long-term durability. This wall seal ensures the flue penetration is neatly covered, the surrounding wall aperture is closed off, and the external finish matches the boiler’s trim design. Moulded in a robust, UV-stable white material, this seal is engineered to withstand external environmental conditions such as rain, frost, sunlight and thermal cycling. The “DN 100” designation confirms the 100 mm diameter flue it is designed to accommodate, ensuring correct fit and compliance with flue manufacturer and boiler installer requirements. Using the correct wall seal helps prevent water ingress behind the flue pipe, reduces cold drafts that can affect boiler performance, and avoids misalignment or gaps that could degrade the installation appearance or function.
Vaillant provide a 1 year warranty on all genuine spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
This is a genuine Vaillant spare part supplied directly from the manufacturer. We ensure full compatibility, reliable performance and the highest quality standards.
| MPN | 20231443 |
|---|---|
| Product Code | EDDVAILLANTSPARES66 |
| Compatible With: Product Code (SKU) | ecoTEC Plus range (100mm flue); ecoTEC Pro range (100mm flue) |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Vaillant |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
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