The Stûv 6-in 56×50 Wood Burning Insert is a compact built-in wood insert designed to combine a broad view of the fire with efficient everyday heating in a format that fits easily into many existing fireplaces. It offers a practical step up from the smallest 46×55 model, with greater log length capacity and a stronger nominal output while still remaining relatively compact.
The insert uses the same Stûv 6 design language as the rest of the family, with a curved combustion chamber profile that supports natural airflow and improves the visual width of the flame picture. Built from steel and cast iron, it is designed for both durability and performance, while the integrated convection system avoids the need for visible grilles or ducting in many standard installations. Optional external air connection can be taken from below or behind, and smoke can be discharged either obliquely or vertically.
In performance terms, the 56×50 delivers a 5.9 kW nominal output, with an output range of 4 to 8 kW, 79% efficiency and an energy efficiency class of A. It accepts 33 cm logs in a vertical position, weighs 80 kg, and uses a 130 mm flue outlet with a 100 mm outside air inlet. An optional fan is available, which increases flexibility for installations where assisted convection is preferred.
Key Features:
- Built-in wood burning insert
- Compact inset format
- Wide flame view
- Steel and cast iron construction
- Integrated convection
- Optional fan
- Optional direct external air inlet
- Oblique or vertical smoke outlet
- 5.9 kW nominal output
- Output range 4 to 8 kW
- 79% efficiency
- Energy efficiency class A
- Accepts 33 cm logs
- Optional finishing frames
- Installation box concept
Stûv 6-in Frame Options:
The Stûv 6-in inset wood burning fire is available with four frame styles to suit different fireplace designs and installation requirements. Options include a flush-mounted slim frame, thin flush frame, 4-sided applied frame, and 3-sided applied frame, allowing a neat and tailored finish around your Stûv 6-in wood burning insert.
Expert Insight
The 56×50 is a useful crossover model because it still suits fairly compact openings, but gives more flexibility than the 46×55 through its larger firebox and optional fan support. That often makes it a strong fit for customers upgrading a standard-sized fireplace without moving into the broader 66 cm formats.
Its vertical log orientation also helps maintain a narrower firebox footprint while still creating a strong flame effect.
Suitability
The Stûv 6-in 56×50 Wood Burning Insert is well suited to standard fireplace upgrades, smaller living rooms and homes where a compact inset wood burner is wanted with a good balance of size, flame view and usable output.
Installation / Technical Notes
This model weighs 80 kg, accepts 33 cm logs, uses a 130 mm flue outlet, 150 mm hot air outlets, and a 100 mm outside air inlet. Minimum insulation thickness is 4 cm at the back, 8.5 cm at the sides, 10 cm above and 5 cm below.
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