# Concentric Flue Connection Kit for Shaft 60/100 DN80 Vaillant 303920

**URL:** https://aio.lv/en/product--vaillant-303920--10456851
**Data updated:** 2026-03-07 15:19 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Vaillant
**Manufacturer code:** 303920
**EAN:** 4024074430606
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 219.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 181.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vaillant-303920--10456851

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Concentric flue connection kit by Vaillant, model 303920, designed for shaft installation with 60/100 concentric dimensions and DN80 interface. Provides a compact exhaust and air intake solution for compatible gas appliances, ensuring proper routing through building shafts. Suitable for professional installation where space-saving concentric venting is required.

## Long description

The Vaillant Concentric Flue Connection Kit for Shaft 60/100 DN80 is a purpose-designed venting accessory for compatible gas-fired appliances. Intended for shaft installations, the kit provides a concentric arrangement that combines exhaust evacuation and fresh-air intake within a single compact run. The system supports installation where a space-saving concentric flue is required and helps ensure correct routing of combustion gases through building shafts when installed by a qualified technician.
Advantages
The concentric design integrates supply air and flue gas exhaust in one compact unit, reducing the space needed inside ventilation shafts. Materials and dimensions are matched to Vaillant systems to provide a reliable connection for DN80 interfaces. The kit simplifies alignment and sealing in shaft installations and reduces the number of separate components compared with non-concentric solutions. When installed according to manufacturer guidelines, it supports safe flue gas discharge and consistent air supply for combustion.
Suitable for
 Concentric venting of compatible Vaillant gas appliances in vertical shaft installations
 Retrofitting or replacing existing shaft flue connections where DN80 interface is required
 Installations that require a compact exhaust and intake run within a building shaft
Key specifications
 Concentric flue configuration combining exhaust and air intake
 Designed for shaft installation with 60/100 concentric dimensions
 Connection interface suitable for DN80 flue systems
 Compact profile for installations with limited shaft space
 Intended for use with compatible gas-fired appliances requiring concentric venting
How to use
Install the concentric flue connection kit in accordance with local regulations and Vaillant installation instructions. Prepare the shaft opening to receive the concentric unit, ensure correct alignment of the DN80 interface with the appliance flue outlet, and create a secure, gas-tight connection using the specified seals and fasteners. Verify that the outer air intake and inner exhaust paths are unobstructed and that the unit is supported and fixed to prevent movement. Commission the appliance and perform leak and draft checks as required by safety standards.
Usage recommendations
Use only with appliances and components certified as compatible with concentric 60/100 shaft systems and DN80 interfaces. Installation should be performed by a qualified heating engineer or installer familiar with Vaillant flue requirements and local building codes. Regular inspection and maintenance of the flue path are recommended to ensure safe operation.

## FAQ

### How much does the Concentric Flue Connection Kit Vaillant 303920 cost, and is it available for purchase?

The price is 219.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 64 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 07.07.2026 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 Concentric Flue Connection Kit Vaillant 303920 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

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