Franek 12kW Non Boiler


The insert with high heating efficiency and characteristic way of space the radiators which enlarge heating surface of the insert.

Manual: Non Boilers


Maximum use of heat due to densely spaced radiators and the wall of the insert made of high quality cast iron with a thickness of 8 mm.
Combustion of fuel particles thanks to deflector, which extends the exhaust gas path.
Triple system of combustion chamber’s air venting: primary air – secondary air supplied under the grate through holes in a back
wall. Additionally clean glass system designed (air curtain).
Manual control over the combustion process carried out by ash tray regulator.
Air supplied from outside only thanks to built-in an external air inlet fi 125mm.
Large combustion chamber, which allows to load a large quantity of fuel without the need for frequent refills.
Reduced soot deposition through a system of pure glass (air curtain).
Movable, two-piece cast iron fumes outlet with the 360 regulation which can be directed upward or backward.
Movable two-piece cast iron grate.


Rated power (kW)  12
Heating surface
50-14.5 sqm
Flue diameter (mm)
Efficiency (%) ~
CO emission ( after 13% O2)
Exhaust gas temperature (°C)
Weight (Kg)
Max wood length (mm)
Range of rated power (kW)
Grey cast iron class 200
Fuel types
Seasonal hardwood (humidity max 20%), brown coal briquettes


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