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SKC-CM chimney system


It is designed for open combustion chamber boilers fired with solid, liquid and gaseous fuels where the flue gas temperature is not higher than T 600 (600ºC). The system uses new outer walls and ceramic flue liners meeting the highest requirements of the applicable European standards.

It is a three-layer system, which is a combination of a ceramic pipe, mineral wool insulation and outer wall of PK or PKW hollow block, operating under negative pressure. The operation is carried out both in dry mode (without condensation of water vapour) and in wet mode (with condensation of water vapour).


CJ BLOK® SKC-CM chimney system meets the requirements of PN-EN 13063-1 T 600 N1 D 3 G20 and PN EN 13063-2 T400 N1 W 2 O20, confirmed by Factory Production Control Certificates No. 1020-CPR-030040624 and No. 1020-CPR-030040625, and we offer it in sections: Ø140, Ø160, Ø180, Ø200, Ø250. 


Advantages of the SKC-CM chimney system:

  • You can connect it to any type of boiler for solid fuels (coal, wood, eco peas, briquette, peat), liquid fuels (fuel oil, paraffin) and gas fuels (natural gas, propane butane).
  • Changing the type of energy source, does not require additional chimney modifications.
  • Soot fire resistant G(20).
  • High acid resistance.
  • Fire safety, thanks to excellent fire resistance class (from external to external) EI-90; LA90.
  • Used for all types of open combustion furnaces, including low-temperature boilers with a flue gas outlet temperature of 40ºC.
  • Safe discharge of liquefied aggressive combustion residues.
  • The highest class of WA vapor permeability.
  • Smooth walls of ceramic liners minimize friction during movement and ensure better draught.
  • Easy to clean and resistant to mechanical stress.
  • Easy and quick assembly thanks to the use of modern, lightweight LECA hollow blocks and thin-layer adhesive mortar.
  • High thermal resistance R38÷R45.
  • Very good ventilation of the insulation.
  • Low weight, high strength, high thermal resistance and versatile use of the chimney outer wall (Mn) (Mi).
  • Excellent thermal and insulation properties λ=0.055-0.08 W/(m-K).

System review

Condensate trap
Compensation sleeve
Bottom ventilation grille
Cleanout door
Top ventilation grille
Adhesive sealant