# Flue Adapter Jeremias 60/100→80/125 for Viessmann Boilers, model TWIN1821101080125

**URL:** https://aio.lv/en/product--jeremias-twin1821101080125--11827366
**Data updated:** 2026-03-09 11:17 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Jeremias
**Manufacturer code:** TWIN1821101080125
**EAN:** 5900856136746
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 73.99 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 61.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--jeremias-twin1821101080125--11827366

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Jeremias flue adapter 60/100→80/125 (model TWIN1821101080125) is designed to connect concentric flue systems of different diameters to Viessmann boilers. This metal adapter provides compatibility between a 60/100 mm and an 80/125 mm concentric chimney connection, enabling safe exhaust and air intake routing. Suitable for retrofit or installation where diameter transition is required.

## Long description

Jeremias flue adapter 60/100→80/125 (model TWIN1821101080125) is a metal transition piece designed to connect concentric flue systems of different diameters to Viessmann boilers. It provides a secure mechanical coupling between a 60/100 mm concentric pipe and an 80/125 mm concentric connection, allowing safe routing of combustion exhaust gases and fresh air intake in installations that require a diameter change. The adapter is suitable for retrofit work and new installations where compatibility between existing ducting and the boiler connection must be achieved.
Advantages
The adapter ensures a tight and durable mechanical transition between concentric flue sizes, reducing the risk of leaks and misalignment. Made of metal, it offers mechanical stability and resistance to the temperatures and conditions typically present in boiler flue systems. The component simplifies installation by providing a standardized connection interface, minimizing the need for custom fabrication when integrating differing concentric pipes.
Suitable for
Connecting a 60/100 mm concentric flue to an 80/125 mm concentric boiler connection
Retrofit projects where existing ducting must be adapted to Viessmann boilers
New installations that require a diameter transition in the flue line
Applications where a compact, factory-made transition is preferred over custom welding or fabrication
Key specifications
Function: concentric flue diameter transition piece
Input diameter: suitable for 60/100 mm concentric flue
Output diameter: suitable for 80/125 mm concentric flue
Material: metal construction designed for flue gas and air intake environments
Compatibility: intended for use with Viessmann boiler concentric connections
How to use
Install the adapter on the existing concentric flue pipe by sliding the 60/100 mm side onto the smaller concentric duct and engaging the 80/125 mm side with the boiler connection. Ensure both ends are fully seated and, where applicable, secure with the appropriate clamps or fixing hardware specified by the flue system manufacturer. Verify alignment to avoid stress on the boiler outlet and check for correct orientation so that exhaust and intake channels align with the concentric system. After mechanical installation, complete any required seal checks and follow local regulations for flue integrity testing before commissioning the boiler.
Usage recommendations
Use the adapter only with compatible concentric flue components and Viessmann boilers that accept an 80/125 mm concentric connection. Follow the boiler and flue system manufacturer instructions during installation, including recommended clamp types, sealing methods, and testing procedures. If in doubt, consult a qualified heating engineer to confirm correct fitment and compliance with local building and combustion appliance regulations.

## FAQ

### How much does the Jeremias flue adapter 60/100→80/125 for Viessmann cost, and is it available for purchase?

The price is 73.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 03.08.2026 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 Jeremias flue adapter 60/100→80/125 for Viessmann 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 Jeremias 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 Jeremias 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/11827366/67228615_large.webp