Core
It’s the Schiedel quality you trust, optimised for efficiency and value in every standard application.
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Gas, Oil, Wood & Multi-Fuel
Contemporary & traditional appliances
Pellet stoves
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Easy Installation Designed with the installer in mind
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Simple Push Fit Design With easy locking mechanism
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Clean and Smooth Appearance Locking bands give a smooth finish
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Smooth Design With limited ridges
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Matt Black Finish Throughout the installation
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Excellent Finish To match most appliances
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High Temperature Rated Suitable for low and high kW stove systems
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Chimney Continuously Insulated Safe from bottom to top
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Low Distance to Combustibles With excellent insulation
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No Thermal Bridging or Hot Spots High quality manufacturing process
| Liner thickness (internal) | 0.4mm |
| Liner material | High grade stainless steel liner 316 liner |
| Outer case thickness | 0.5mm |
| Outer case finish | 304 stainless steel - painted black (RAL 9005) |
| Insulation thickness per diameter (kg/m) | 5.8 kg/m - 8.4 kg/m |
| Outer case thickness |
0.5mm |
| Flue gas temp (Dry) | < 450 celsius |
| Liner material | High grade stainless steel liner 316 liner |
| Weight per diameter (kg/m) | 5.8 kg/m - 8.4 kg/m |
| Insulation type | High density, rockwool insulation |
| Thermal expansion | 18mm |
| Max. length free standing | 2.0m above the last support |
| Max, support spacing (lateral support) | 3.0m |
| Average thermal resistance (200 celsius) | 0.37m2 k/W |
| Diameter internal | 100,130,150 |
| Diameter external | 150,180,200 |
| System Chimney | ||
|---|---|---|
| Core Twin Wall is CE certified to EN 1856-1:2009 with designations: | ||
| Model | Dimensions | Designation String |
| Tested fully enclosed in a non-combustible shaft; floor penetration fully ventilated with ventilated fire-stop plates. With unprotected floors. | DN (100 – 150) | T450 N1 W V2 L50050 G60 (Painted) T450 N1 D V3 L50050 G60 (Painted) |
| Tested fully enclosed in a non-combustible shaft; floor penetration fully ventilated with ventilated fire-stop plates. With protected floors - 10mm non-combustible boarding. | DN (100 – 150) | T450 N1 W V2 L50050 G50 (Painted) T450 N1 D V3 L50050 G50 (Painted) |
| Certifications and standards | ||
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| Filename | Format | ||
|---|---|---|---|
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Core Twin Wall Brochure March 2026 | Click to download | |
|
core tw installation instructions | Click to download |
