Accumulative Chimney Ring up to 1300 °C
1300 °C | Bulk density: 2.35 kg/dm³ | For flue gas heat accumulation
Accumulative chimney rings for fireplace inserts and stoves
LAC accumulative chimney rings are circular refractory castable modules designed to absorb heat from flue gases and gradually release it into the room.
They are intended for fireplace inserts and stoves with a top flue outlet and are suitable for installations with a deflector.
- Maximum temperature: 1300 °C
- Compressive strength: 105 MPa
- Bulk density: 2.35 kg/dm³
- Outer diameter: 340 mm
- Height of each ring: 110 mm
- Reduction rings available for flue pipe diameters of 150, 160, 180 and 200 mm
Installation and use
The rings can be used with fireplace inserts and stoves from different manufacturers, provided the appliance has a top flue outlet and the installation conditions allow their use.
The rings must not be exposed to direct heat from the combustion chamber. Before installation, verify with the fireplace insert or stove manufacturer whether the rings can be placed directly on the appliance or whether a separate self-supporting structure is required.
Recommended configuration
A complete set consists of a bottom reduction ring, at least two middle rings and a top reduction ring.
The minimum configuration consists of four rings: one top reduction ring, two middle rings and one bottom reduction ring.
For greater heat accumulation, a set of 6–8 rings is typically used.
The rings are assembled dry, without mortar. Rope seals between the rings and around the flue pipe are available separately.
Technical specifications
All variants have an outer diameter of 340 mm and a height of 110 mm. The required reduction ring is selected according to the flue pipe diameter.
| Product code | Variant | Inner diameter | Outer diameter | Height | Weight |
|---|---|---|---|---|---|
| 01041792 | Middle ring | For Ø150 / Ø160 / Ø180 / Ø200 configurations | 340 mm | 110 mm | 16.5 kg |
| 01066270 | Top reduction ring Ø150 | 155 mm | 340 mm | 110 mm | 16.7 kg |
| 01066271 | Bottom reduction ring Ø150 | 155 mm | 340 mm | 110 mm | 17.6 kg |
| 01041789 | Top reduction ring Ø160 | 165 mm | 340 mm | 110 mm | 16.3 kg |
| 01041786 | Bottom reduction ring Ø160 | 165 mm | 340 mm | 110 mm | 17.3 kg |
| 01041790 | Top reduction ring Ø180 | 185 mm | 340 mm | 110 mm | 16.0 kg |
| 01041787 | Bottom reduction ring Ø180 | 185 mm | 340 mm | 110 mm | 17.0 kg |
| 01041791 | Top reduction ring Ø200 | 205 mm | 340 mm | 110 mm | 14.9 kg |
| 01041788 | Bottom reduction ring Ø200 | 205 mm | 340 mm | 110 mm | 15.9 kg |
Contact us and our specialists will help you select the appropriate diameter and ring configuration for your application.
Additional parameters
| Category: | Accumulation |
|---|---|
| Warranty: | 2 years |
You need a furnace solution that delivers consistent results, long service life and reliable performance in your process. LAC furnaces are designed for laboratory and industrial applications, from material testing and heat treatment to demanding production processes. With a focus on temperature uniformity, durability and process stability, they help you achieve repeatable results and reduce operational risks.
| Manufacturing company : | LAC, s.r.o. |
|---|---|
| Address : | Topolová 933 667 01 Židlochovice Czech Republic |
| E-mail : | sales@lac.cz |