The Stûv 21/85 DF Double Sided Inset Wood Burning Stove is a mid-size see-through fire designed to divide two spaces while maintaining a broad view of the flames from both sides. It combines retractable glass on both faces with strong heat output and multiple installation possibilities.
The 21/85 DF offers a larger and more substantial fire view than the 75 model, while still being easier to integrate than the 95 or 125 versions. With the glass raised, it creates an open-fire feel. With the glass lowered, it becomes a sealed stove with strong airtightness and controlled combustion. The pivoting door gives access for cleaning and maintenance, and the design keeps the mechanism out of sight even when the glass is open.
In performance terms, the 21/85 DF offers a rated output of 22.6 kW, an optimal range of 11.0 to 27.9 kW, 75.8% efficiency at rated power and an energy efficiency class of A. It accepts 60 cm logs, weighs 236 kg, and uses a 250 mm flue outlet. It also supports outside air connection, optional barbecue use and ready-to-fit double-sided cladding systems such as DF2 and DF7.
Key Features:
- Double sided inset wood burning stove
- Retractable glass on both sides
- See-through fire design
- Open or closed fire use
- Rated output 22.6 kW
- Operating range 11.0 to 27.9 kW
- 75.8% efficiency
- Energy efficiency class A
- Accepts logs up to 60 cm
- Outside air connection
- Optional barbecue
- Optional DF claddings
Expert Insight
The 21/85 DF is often a strong balance point in the double-sided range because it gives a noticeably broader fire than the 75 without reaching the greater structural demands of the 95 or 125. That can make it especially useful for mainstream architectural room-divider projects.
Suitability
The Stûv 21/85 DF Double Sided Inset Wood Burning Stove is well suited to open-plan homes, room-dividing fireplace features and projects where a double-sided retractable fire should feel substantial without becoming oversized.
Installation / Technical Notes
This model weighs 236 kg, accepts 60 cm logs, uses a 250 mm flue, and requires a minimum combustion air section of 200 cm². Minimum insulation thickness is not specified at rear, 15 cm at the sides, 0 cm above and 11 cm below.
Frames, Claddings And Front Panel Examples:
Front Panel Colour Options
19 heat resistant powder coated front panel colours to choose from including a rust option.
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