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KF insulated chimneys

Negative pressure

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Insulated KF type chimneys are independent chimney systems. Made of acid-resistant steel, they discharge smoke from heating devices operating under negative pressure. They include 50 mm thick insulation which allows for installation outside a building.
Note: The protective film should be removed when installing chimney systems.

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Fuel

Gas Gas
Coal Coal
Oil Oil
Wood Wood
Pellets Pellets
*coal - min. material thickness 0,8 mm

Material Mat. thickness Work temp. Diameter range
Internal:

acid-resistant steel 1.4404

Insulation:

mineral wool, th. min 50 mm

External:

acid-resistant steel 1.4301

Designation mark:

EN 1856-1 T450 N1 W Vm L50080 G100

0,5 mm; 0,8 mm; 1,0 mm ≤450 °C 110 mm; 120 mm; 130 mm; 140 mm; 150 mm; 160 mm; 180 mm; 200 mm; 225 mm; 250 mm; 300 mm; 350 mm; 400 mm; 450 mm; 500 mm