Highlights
MF (formerly METALOTERM MF) is a modular, double-walled and pre-insulated flue gas system and exhaust air system made of stainless steel with a special internal lip seal. It can be used universally at low and high temperatures with and without condensation in negative and positive pressure. MF is therefore suitable for a wide range of applications such as condensing boilers, low temperature and solid fuel fireplaces and is soot fire resistant. We have summarized all the advantages of the flue gas pipe for you:
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Further interesting content
ME - The single-walled exhaust flue system
A modular exhaust air & gas flue system made of stainless steel. It is suitable for refurbishments, ventilation, condensing boilers, etc.
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US - High temperatures & neg. pressure
The stainless steel US air/flue gas system is ideal for high flue gas temperatures in negative pressure operation for room-sealed gas fires.
Details & Services
Find out more about the details and services for the MF gas flue system, such as the design, detailed technical data or suitable services. You also have the option of downloading flyers or brochures about the product.
The system structure
The MF system is mounted on the wall or on the floor. This includes the inspection door/cleaning door and all other components. After the wall duct to the respective heating system, the flue gas system is crowned by an outlet cone.
Technical data
| Basic data (dimensions, weight & co.) | |
Wall thickness per diameter (internal) |
0,4 - 0,6 mm |
Insulation thickness per diameter |
25 - 50 mm |
Wall thickness per diameter (outside) |
0,4 - 0,5 mm |
| Application | |
Flue gas temperature (dry) |
≤ 600 °C |
Operating temperature under negative pressure |
≤ 600 °C |
Operating temperature under positive pressure |
≤ 200 °C |
Short firing temperature under positive pressure |
≤ 200 °C |
Short firing temperature under negative pressure |
≤ 600 °C |
Operating pressure |
≤ 5000 Pa |
Material (Inner liner) |
AISI 316L-EN 1.4404 |
Material (Insulation) |
Mineral fibre |
Material (Outer case) |
AISI 304-EN 1.4301 |
Thermal resistance by insulation thickness |
0,37 - 0,56 m²K/W |
| General product features | |
Operating |
Negative pressure (N), Humid, Dry, Positive pressure (P-H) |
Room sealed |
No |
Occupation |
Single, Multi |
Suitable for passive house |
No |
Heating technology |
Low temperature technology, High pressure 5000 Pa, Condensing boiler technology, Conventional heating technology |
Suitable services
At Schiedel, service is more than just a friendly voice on the phone. Service is an essential part of the Schiedel total package. In addition to product quality, safety, reliability and innovative strength as well as a good price-performance ratio, customer satisfaction is significantly influenced by our service. We offer the following services for the MF chimney:
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Frequently Asked Questions - FAQ
In our FAQs you will find the most important answers to Schiedel products and their application.
Technical advice & customer center
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For professionals
Are you a building contractor, architect or chimney sweep - a true professional? Then you've come to the right place. Enclosed you will find all relevant detailed information such as all relevant downloads (PDF files) for the product or our 3D CAD/BIM database.
Downloads (.pdf, .xlsx & Co.)
CAD/BIM database
Our online database gives you access to over 4,000 drawings for our stainless steel, ceramic and chimney systems. Register now and download.