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KWB Classicfire 20, 30, 40, 50kW |
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With a burning time of up to 20 hours ideally combines the advantages of traditional wood heating with the comfort of modern heating systems. Suitable for single family homes and apartment buildings, as well as for agricultural buildings. Firewood with a maximum length of 55 cm, G100 wood chips as well as dry saw mill remnants can be burned. Water content of the fuel should not exceed 25%.  Current product catalogue >>
Reliable - robust design
- proven firing concept
- high-quality manufacturing
Convenient - high level of operating convenience when heating – large fill
area and large fill door - low ash and no mess in the furnace room
Economical - minimum consumption thanks to uniformly high level of efficiency
- regional fuel
- low emissions thanks to optimal burnout
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| | The KWB Classicfire can burn split logs with a maximum of 55 cm in length
and coarse wood chips |
| Special features | |
 | Large loading chamber
The spacious loading chamber with lower complete combustion is designed for split logs of up to 55 cm, but can also be stoked with coarse wood chips. It is lined with special metal plates in order to protect against corrosion. An extremely long burning period of up to 20 hours is possible without additional heating requirements thanks to the spacious dimensions of the firebox!
|  | Heat exchanger cleaning system and efficiency optimisation
The efficiency is optimised through the built-in special turbulators, because this provides perfect heat transmission. The KWB Classicfire is also fitted out with a heat exchanger cleaning system. The turbulators provide a constantly high degree of efficiency of up to 92% when regularly operating the cleaning lever.
|  | Full insulation
Comprehensive full insulation minimises radiation loss and therefore contributes to efficiency optimisation. Extraction of low-temperature carbonisation gas: Special extraction ensures that the low-temperature carbonisation gases produced cannot escape when the combustion chamber door is opened. |  | Turbulence combustion chamber
The high-temperature turbulence combustion chamber, which is arranged under the firebox and designed in fire clay, guarantees ideal combustion. The combustion air is supplied via separately controlled primary and secondary air valves and drawn in by means of a speed-regulated induced draft fan. The results are minimum emission values, extremely negligible production of ash and economical fuel consumption.
| | KWB lambda probe
The lambda probe on the one hand guarantees optimum air conduction with regard to high combustion quality also with fluctuating fuel qualities and on the other hand provides modulating performance control ranging from ember-bed maintenance to full load with optimum fuel utilisation.
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