Kratki K12 6 kW is a good choice for users looking for a compact wood burning stove with a solid cast iron construction, high efficiency and a modern appearance. The combination of air regulation, an afterburning system and the option of an external air supply makes it a practical solution for efficient home heating.
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Minimalism that heats smarter.
If you are building a new home or want to optimise the heating in an existing one, the Kratki K12 is the model that combines the timeless durability of cast iron with 21st-century technology.
With its tall, slim profile it takes up minimal space, and the clean design lines fit equally well into modern and classic interiors.

The K12 is designed specifically for modern energy-efficient, passive and airtight buildings.
Thanks to the separate external air channel (Ø100 mm), combustion proceeds in a controlled way without "stealing" air from the room — making the stove compatible with mechanical ventilation with heat recovery (MVHR) systems.
The solid cast iron construction retains heat for a long time and continues to radiate warmth even after the fire has gone out.
The flue gas afterburning system allows more efficient use of the fuel's energy, with part of the heat being absorbed before the gases leave the appliance through the flue.
The ergonomic perforated handle stays cooler to the touch, the adjustable feet ensure stability even on an uneven floor, and the top flue outlet makes installation easier.

| Characteristics | |
| Weight (kg) | 102.0000 |
| Dimension Depth (mm) | 403 |
| Dimension Width (mm) | 388 |
| Dimension Height (mm) | 866 |
| Nominal thermal power (kW) | 6 |
| Approximate heating surface (m²) | 45-60 |
| Energy efficiency class | A+ |
| Flue (mm) | 130 |
| Efficiency (%) | 82.5 |
| Approximate heating capacity (m³) | 110 - 130 |
| Colour | Black |
| Material | Cast iron |
| Heating type | Natural Convection |
| Maximum length of the firewood logs (mm) | 350 |
| Combustion chamber dimensions (Height, Width, Depth), mm | 380 x 210 x 300 |