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3. TW25
 
  

 

      ![TW25 zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_tw25.jpg)  

Multilayer concentric acid resistant system

# TW25

## Features

- wide range of applications
- moisture resistant
- suitable for pressurised operation when using seals
- universal system
- easy transition to a single skin system
- internal and external mounting
- freestanding chimneys
 
## Parameters

   Classification according to EN 1856 – 1:2009   Operating temperature up to 450 °C   Type of operation solid fuel appliances   Fuel solid fuels   Material stainless steel/​insulation/​stainless steel/​painted stainless steel   Average 150 — 250 mm   

 



 

 

Description

## Characteristics and advantages

 

 

Acid-resistant steel DK concentric system. Multilayer concentric system made of acid-resistant steel, moisture-proof, for vacuum operation. The ALMEVA Quadra TW25 acid-resistant steel chimney system is suitable for solid fuel appliances, especially fi replaces that operate under vacuum and must be connected to an external combustion air supply for combustion. The system is widely used in low energy and passive houses, and is also suitable for installation in older buildings with increased air supply requirements.



 

 

 

 

Components

## TW25 complete assembly

 

   1. Meidinger’s head   2. Outlet with suction   3. Passing through the roof   4. Transition piece for 2x insulated   5. Straight part   6. Control part   7. C profile 1000 mm   8. Elevator part   9. 90° elbow for suction   10. T‑piece for air supply   11. Straight part for suction   

 

      ![TW25_prvky](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_ocislovane_400x600_tw25_0.jpg)  



 

 

Downloads

## Documents

 

 [     

 Company profile  

 11.7 MB 

 

 ](https://almeva.swiss/sites/default/files/perm/document/almeva_company_profile_7_2024.pdf)