Fire chests are the perfect solution for creating open fires. The finished look can be customised to suit individual tastes with a variety of fireplace surrounds available on the market.
Schiedel Isokern fire chests complement the Isokern chimney systems, designed to create a complete system that avoids many of the variables that can lead to draught problems and smoky fireplaces.
The Magnum Fire Chest Range
The Magnum Fire Chest range is designed to maximise the burning efficiency of wood in an open fire. The specially shaped fire chamber promotes efficient burning of wood logs, achieving efficiencies from 41% to 45% depending on the model. The fire chest is tested to EN 13229 standards.
Firechests and Gathers Features
The Isokern fire chest range is made using lightweight, highly insulating pumice sourced from the Hekla Volcano in Iceland. The components interlock like a three-dimensional jigsaw to form a sturdy, robust fireplace recess and gather. The joints are sealed with lip glue jointing compound. Starting from a suitable foundation and constructional hearth, assembly of the complete fire chest and gather can be completed in less than an hour.
The range includes fire chests with fire openings from 500mm to 1250mm wide. Each fire chest is supplied on a pallet with detailed assembly instructions. The fire chest is load-bearing and can support up to 2600kg of chimney above, with the potential to exceed this weight using additional lintels.
Technical Specification
DAMPER A flue damper is available in the Magnum range of fire chests. In wood-burning installations, the flue damper can be closed to reduce excessive heat loss when the fireplace is not in use. This is reflected in the SAP calculation for Document L. The inclusion of the damper will halve the chimney ventilation rate in SAP calculations. It must not be installed with gas fires.
FLUE SIZING Each fire chest has been tested to establish the optimal flue size required for the best performance. The recommended flue size is shown in the range table. The minimum flue height required is 4.5m above the fireplace opening.
Components & Systems
Magnum Firechests
| Code | Model | Opening Width (mm) | Opening Height (mm) | Ext. Width (mm) | Ext. Height (mm) | Ext. Depth (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 130773 | 500 | 510 | 540 | 685 | 1540 | 440 | 390 |
| 129371 | 950 | 990 | 960 | 1090 | 1761 | 710 | 715 |
| 129568 | 1100 | 1130 | 960 | 1230 | 1761 | 710 | 790 |
| 129767 | 1200 | 1246 | 960 | 1346 | 1761 | 710 | 845 |
Inside Flue Diameter
- Magnum 500: 200mm
- Magnum 950 – 1200: 350mm
Manor Gathers
| Code | Model | Inside Flue Dia (mm) | Internal Width (mm) | Ext. Width (mm) | Ext. Height (mm) | Ext. Depth (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 133463 | 900 Centre Hole | 350 | 933 | 1086 | 525 | 640 | 140 |
| 135267 | 900 Offset Hole | 350 | 933 | 1086 | 525 | 640 | 140 |
| 135280 | 1150 Centre Hole | 350 | 1191 | 1350 | 930 | 640 | 268 |
| 135279 | 1150 Offset Hole | 350 | 1191 | 1350 | 930 | 640 | 268 |
Standard Firechest
| Code | Opening Width (mm) | Opening Height (mm) | Ext. Width (mm) | Ext. Height (mm) | Ext. Depth (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| 130820 | 690 | 660 | 850 | 660 | 450 | 100 |
Downloads
Brochure: 940002642-Isokern-Brochure-25-08-23
Installation Instructions: Magnum-instructions-17-04-23
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