ABSOLUT - Thermally Insulated Chimney Systems for Modern Architecture
Engineered for modern building standards
Modern building regulations (such as the German Building Energy Act - GEG) place high structural demands on house construction as well as industrial and commercial projects. Airtight building envelopes require precise thermal separation at every installation point.
The ABSOLUT chimney system delivers double planning security: First, its universal design accommodates liquid, gaseous, and solid biomass fuels (such as pellets, wood, or wood chips) in open-flue or room-sealed setups. Second, its compound block design and integrated insulation elements maintain structural thermal separation across building boundaries. We have summarized all the advantages of the chimney system for you:
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Optimized thermal insulation
A lightweight concrete casing block featuring integrated thermal insulation combined with a specialized separation block minimizes heat loss across the building shell and prevents thermal bridging.
A lightweight concrete casing block featuring integrated thermal insulation combined with a specialized separation block minimizes heat loss across the building shell and prevents thermal bridging.
Versatile functional performance
The ABSOLUT chimney system operates reliably across all fuel types—gaseous, liquid, and solid fuels like wood or pellets—in both open-flue and room-sealed configurations. Its streamlined assembly saves time, materials, and overall installation effort.
The ABSOLUT chimney system operates reliably across all fuel types—gaseous, liquid, and solid fuels like wood or pellets—in both open-flue and room-sealed configurations. Its streamlined assembly saves time, materials, and overall installation effort.
Certified W3G quality
Built from mineral-based components, the ABSOLUT system is fully W3G-certified. It complies with strict building standards: moisture resistance class W, corrosion resistance class 3, and soot fire resistance class G.
Built from mineral-based components, the ABSOLUT system is fully W3G-certified. It complies with strict building standards: moisture resistance class W, corrosion resistance class 3, and soot fire resistance class G.
Long-term technical reliability
Manufactured from high-grade ceramic and lightweight concrete, the ABSOLUT is engineered specifically for long-term operational safety in airtight structures. Built on decades of manufacturing expertise, it delivers lasting structural performance.
Manufactured from high-grade ceramic and lightweight concrete, the ABSOLUT is engineered specifically for long-term operational safety in airtight structures. Built on decades of manufacturing expertise, it delivers lasting structural performance.
Ready-made design base component
Expand your interior layout options with our chimney base featuring an integrated, flush-fitting designer door. Replacing traditional inspection hatches, this clean architectural solution integrates seamlessly into visible interior walls - offering an aesthetically refined option for modern homes built without a basement.
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Further interesting content
UNI PLUS
The classic UNI PLUS insulated chimney has a three-shell structure with rear ventilation, insulation board and fireclay inner pipe.
MULTI
A closed air flue system with ceramic inner pipe for the room air-independent operation of gas floor heating systems.
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Details & Services
Find out more about the details and services for the ABSOLUT chimney, such as the structure, detailed technical data or suitable services. You also have the option of downloading flyers or brochures about the product.
The system structure
The ABSOLUT system is based on a foundation built on site onto which a prefabricated base is attached. This contains the inspection/cleaning door and all other components. After a ceiling duct, the flue pipe connection is attached to connect the fireplace. The chimney is topped off with an outlet cone and an air inlet head plate.
Technical data
| Basic data (dimensions, weight & co.) | |
Wall thickness per diameter (internal) |
7 - 12 mm |
| Application | |
Flue gas temperature (dry) |
≤ 400 °C |
Material (Inner liner) |
Isostatic Ceramic |
Material (Insulation) |
Foamed concrete |
Material (Outer case) |
Lightweight concrete |
Thermal resistance by insulation thickness |
0,27 - 0,48 m²K/W |
| General product features | |
Operating |
Negative pressure (N) |
Room sealed |
Yes |
Occupation |
Multi, Single |
Suitable for passive house |
Yes |
Heating technology |
Condensing boiler technology, Low temperature technology, Conventional heating technology |
Suitable services
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