Austroflamm Fynn Xtra: Sleek Curved Glass and Lasting Heat Retention

Imagine cosy mornings where the fire has long gone out but the room is still warm. The Austroflamm Fynn Xtra creates lasting comfort while adding elegance to your living space.

June 26, 2025
By Reece Toscani
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Stove Spotlights

Efficiency Meets Contemporary Design

The Austroflamm Fynn Xtra wood stove is a sleek, modern heating solution designed to combine exceptional performance with understated style. Built by Austrian stove specialists Austroflamm, this model merges cutting-edge heating technology with minimalist design, making it equally at home in a modern city apartment or a cosy countryside cottage. For homeowners who demand both function and elegance, the Fynn Xtra ticks every box.

Long-Lasting Warmth with Xtra Heat Retention

One of the most impressive features of the Austroflamm Fynn Xtra is its Xtra Heat Retention system, a patented innovation unique to the brand. Unlike many conventional stoves that cool down rapidly once the fire dies, the Fynn Xtra can continue releasing warmth for up to 12 hours after the flames have gone out. This means you can light the fire in the evening and still enjoy a comfortable ambient heat the following morning, all while burning fewer logs. It’s an energy-saving feature that helps reduce fuel costs and makes wood heating far more practical for daily use.

Impressive Efficiency and Environmental Credentials

With a certified efficiency of up to 82%, the Fynn Xtra ensures that almost all the energy from each log is transferred into usable heat. High efficiency means less wood is required to achieve the same comfort levels, cutting down on consumption and emissions. For eco-conscious households, the Austroflamm Fynn Xtra provides a reassuring balance: the renewable, carbon-neutral benefits of wood combined with the clean-burn technology expected from a premium European stove.

By lowering particulate emissions and maximising energy use, it demonstrates how wood stoves can play a role in sustainable home heating.

Austroflamm Fynn Xtra Wood Stove

View & Buy on Redefining Woodburners

Design That Stands Out

The Fynn Xtra is available with a curved glass front, softening its contemporary profile and offering an even broader view of the flames. The steel body is finished in a refined stove-grey, an off black paint available on all Austroflamm stoves. For those who want to personalise their stove, Austroflamm also provides optional ceramic or coloured tile finishes, allowing you to match the stove to your interior scheme while adding extra heat retention capacity.

The Fynn Xtra’s design is unmistakably modern yet timeless, ensuring versatility whether installed in a sleek open-plan loft or a rustic cottage lounge. At just 520mm wide, it manages to be compact without feeling small, offering style and presence without dominating the room. Its panoramic glass door offers a wide, uninterrupted view of the flames, which thanks to the included Airwash system, which uses a stream of pre-heated air to prevent soot build-up on the glass. This keeps the view of the flames clear, minimising cleaning and maximising enjoyment, turning your fire into the centrepiece of any living space.

For full technical specifications, see our page on the Austroflamm Fynn Xtra over at Redefining Woodburners.

Efficiency: Up to 82%
Heat Output: 5–7 kW
Dimensions: H 1140mm x W 520mm x D 430mm
Weight: 200 kg
Flue Diameter: 150mm
Clearance to Combustibles: Rear 200mm, Sides 400mm
Fuel Type: Wood
Warranty: 5 years

Practical Heating Power

Despite its compact footprint, the Austroflamm Fynn Xtra offers a 5–7 kW output range, making it ideal for medium to large-sized living spaces. Its intuitive air controls make adjusting the burn simple, whether you’re after a gentle background heat or a roaring fire on a cold winter’s evening.

For those seeking even more performance, Austroflamm also offers an optional heat storage module. This enhancement extends the stove’s ability to release heat, further emphasising the brand’s focus on comfort and efficiency.

Why Choose the Austroflamm Fynn Xtra?

If you’re searching for a stove that combines advanced heating technology, elegant design, and eco-friendly credentials, the Austroflamm Fynn Xtra is a standout choice. Its heat retention system sets it apart from many other woodburners, delivering not just efficiency in the moment but comfort that lasts well into the night.

It’s more than just a heater—it’s a statement piece that adds value to your home, visually and practically. Whether your goal is to reduce reliance on fossil fuels, create a cosy focal point for family life, or invest in a durable heating solution, the Fynn Xtra delivers on all fronts.

Have you tried an Austroflamm stove before, or are you considering one for your home? Share your thoughts and experiences in the comments — we’d love to hear from you.