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Rojek KTP family 20-
The most favourable fuel of present and future is wood. The existing boilers based on pyrolysis produced in a big quantity have even some shortcomings preventing them from wider use.
The new boiler model with patented construction of combined combustion offers quite new possibilities in wood heating. The boilers using pyrolytic combustion for increased efficiency will surpass the range of boilers on our market including those made of cast iron with their foreseen service life and provided warranty time.
New boilers have following exceptional features:
3 years warranty , foreseen service life up to 30 years.
Combination of a unique construction and high effective pyrolytic process with common burning out enables to burn not only biomass but also saw dust and wet wood. The interchange of fuels is possible almost immediately.
The boiler output can be adjusted and its service capacity reduced by 40% without any additional devices.
The already mentioned and patented construction for combustion is able to suppress the adverse influence of tar substances being formed during imperfect combustion, for instance of wet wood.
Due to the new boiler construction it is possible to connect it directly to the heating circuit without any additional devices which considerably reduces the real purchase price of the heating system.
The recommended temperature of return water is only above 40°C because it goes through the pipe grate near the fire place where it gets the temperature higher than the condensation level.
The new boiler model is in fact a warm water boiler. All its parts coming to contact with heat due to combustion are doubled and filled with water. For this reason no heavy and problem fire clay or ceramic insert is necessary, as usual in the most boilers.

Type |
KTP 20 |
KTP 25 |
KTP 30 |
KTP 40 |
KTP 49 |
Output power |
20 kW |
25 kW |
30 kW |
40 kW |
49 kW |
Dimensions |
600 x 640 x |
600 x 750 x |
600 x 850 x |
750 x 860 x |
750 x 1000 x |
Smokepipe- |
160 mm |
160 mm |
160 mm |
200 mm |
220 mm |
Lenght of fire place |
326 mm |
426 mm |
526 mm |
526 mm |
626 mm |