# Exhaust Extension Pipe Vaillant DN80/125 1 m model 303203

**URL:** https://aio.lv/en/product--vaillant-303203--11827198
**Data updated:** 2026-03-09 11:16 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Vaillant
**Manufacturer code:** 303203
**EAN:** 4024074343395
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 98.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 81.81 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vaillant-303203--11827198

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Vaillant exhaust extension pipe DN80/125, 1 meter length, model 303203. Designed as an extension element for Vaillant flue and ventilation systems with nominal diameters DN80 and DN125. Used to lengthen exhaust runs, adapt flue routing, and connect modular chimney components. Suitable for residential boiler and water heater installations requiring compatible DN80/125 fittings.

## Long description

Vaillant Exhaust Extension Pipe DN80/125, 1 m (model 303203) is an extension element for flue and ventilation systems with nominal diameters DN80 and DN125. The 1-metre straight section is intended to lengthen exhaust runs, adapt routing and connect compatible modular chimney components in residential boiler and water heater installations. The product is designed for use with systems that accept DN80/125 fittings and provides a standardized connection for safe evacuation of combustion gases when installed according to manufacturer guidance.
Advantages
The extension pipe provides a single-piece, uniform cross-section to maintain proper gas flow in DN80/125 systems. Its 1 m length offers flexibility when adapting flue layouts without requiring custom cutting or on-site fabrication. The component is compatible with modular chimney and ventilation parts that share the same nominal diameters, enabling straightforward assembly and secure mechanical connections. Materials and dimensions conform to the expectations for residential heating exhaust components, ensuring predictable fit and function when integrated into appropriate systems.
Suitable for
 Extending exhaust runs on residential boilers and water heaters with DN80/125 connections
 Adapting flue routing to avoid obstacles or match installation geometry
 Connecting modular chimney components in venting systems with matching nominal diameters
 Replacement of a worn or missing straight section within an existing DN80/125 flue assembly
Key specifications
 Nominal diameters: DN80 and DN125 compatible connection
 Length: 1 metre (straight section)
 Function: exhaust extension for ventilation and flue systems
 Intended application: residential boiler and water heater installations
How to use
Install the extension pipe as part of the flue system by aligning the DN80/125 ends with compatible adjoining components and engaging the designed mechanical connections or seals. Ensure that joints are secured according to system requirements and local codes, maintaining correct slope and clearance for safe condensate and gas discharge where applicable. Verify that the assembled length, routing and support comply with the heating appliance manufacturer's installation instructions before commissioning the system.
Usage recommendations
Use the extension only with compatible DN80/125 components and follow all installation instructions and local regulations. Inspect joints after installation for airtightness and secure support to prevent sagging or stress on connections. When in doubt, consult a qualified heating technician or refer to the appliance manufacturer's guidance.

## FAQ

### How much does the Vaillant DN80/125 Exhaust Extension Pipe 1 m 303203 cost, and is it available for purchase?

The price is 98.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 08.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Vaillant DN80/125 Exhaust Extension Pipe 1 m 303203 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Vaillant products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Vaillant service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11827198/67228497_large.webp