Stûv, a pioneering Belgian brand in domestic wood and pellet heating, announces the launch of the sP20-in, its first pellet insert. 

A major innovation that fills a gap in the market, offering an aesthetic, high-performance and environmentally responsible solution. The first product of its kind in this segment.

With 15 years of expertise in designing and marketing pellet stoves, and two models recognised at the Red Dot Awards (the sP10 in 2016 and the sP20-B in 2025), Stûv continues to develop cutting-edge, durable heating solutions. The sP20-in combines the advantages of pellet fuel (automation, ease of use and energy efficiency) with the authenticity of a wood fire: the flame and its radiant heat.

Designed to complement the existing range, the sP20-in responds to a clear demand from architects, specifiers and homeowners: the elegance of a wall-integrated fireplace, with the benefits of pellet heating.

"The market for pellet inserts is very limited. The sP20-in will open new horizons. It is possible to achieve results in terms of aesthetics, the pleasure of the flame, and thermal comfort equivalent to a fireplace — with all the advantages of pellet fuel."
Jean-François Sidler, Chief Executive Officer, Stûv

This solution is well suited to renovation projects. It preserves the charm of a wood fire while offering a heating system that is elegant, high-performing and easy to use. 

Its strengths also make it an ideal replacement for the s30-in, Stûv's best-selling wood stove launched 20 years ago. A natural transition for those who wish to modernise their interior without giving up the emotion of fire.

Key features of the sP20-in

• Soft, continuous flame produced by the flower burner (patented), with strong radiant heat
• Wide view of the fire through a continuous sightline (patented) that extends into the door.
• Clean architectural wall integration: no grille, invisible loading hatch and ash drawer, with customisable finishes. Standard surrounds or a floor-to-ceiling extension (a Stûv signature)
• Quiet operation thanks to natural convection and an upward pellet feed system (no dropping or vibration
• Smart heat management with programming and remote control via mobile app
• Automated ash removal and a large ash drawer for infrequent maintenance
• Front-loading made easy by an integrated hatch that remains cool to the touch
• Ducted convection option enabling heat distribution to multiple rooms
• Very low fine particle emissions: 12mg/Nm3.
• Excellent energy efficiency: 92%.
  

The sP20-in is also compatible with the Pellet Twin Set, a Stûv pellet bucket designed to match the aesthetic and ergonomics of this new insert.

The Stûv pellet range

• sP10: iconic model with a pivoting firebox, Red Dot Product Award 2016.
• P20-S: freestanding version launched in 2023.
  
• sP20-B: low version launched in 2025, Red Dot Product Award 2025.
  
• sP20-in: first pellet insert, launched in 2026.