Jøtul I 620 FRL Wood Burning Stove

Jøtul I 620 FRL Three-Sided Wood Burning Fireplace Insert — A Panoramic View of the Flames

There are fireplace inserts, and then there is the Jøtul I 620 FRL three-sided wood burning fireplace insert. Glass covers the front, the right side, and the left side of the firebox, wrapping the flames in a panoramic display that you can enjoy from almost any angle in the room. Add a bright firebox lined in white vermiculite and white enamelled cast iron, and the result is a fireplace that looks exceptional whether it burns at full output or quietly ticks over on a mild afternoon. Jøtul casts every component in Norway to the highest standard, and that quality shows in every detail.

Three-Sided Glass — What FRL Means for Your Room

The FRL suffix tells you exactly what you get. Front, right, and left glass panels wrap around the firebox, so the flames become visible from three directions at once. Because of this, the I 620 FRL feels closer to an open fireplace experience than almost any other insert on the market — vivid, generous, and genuinely enveloping. It works particularly well in rooms where seating wraps around the fireplace, or in open-plan spaces where the fire needs to read well from multiple positions.

Furthermore, for those who need a different setup, the I 620 series also comes in front-only (F), front and left (FL), and front and right (FR) versions. As a result, you can choose the glazing direction that works best for your specific room layout rather than adapting the room around the insert.

A Bright Firebox That Makes the Flames Come Alive

Most fireplace inserts use dark combustion chambers that absorb rather than reflect light. The I 620 FRL takes a different approach entirely. Jøtul lined the firebox with white vermiculite burn plates and white enamelled cast iron, so the flames burn against a bright, light background instead of disappearing into a dark recess. As a result, the fire looks more vivid and alive than standard inserts can manage — a noticeably different and more dramatic effect that makes the I 620 FRL worth considering on aesthetics alone.

Moreover, this bright interior means the insert looks welcoming and attractive even when the fire is not burning — a small but meaningful quality given how much time most fireplaces spend unlit during the day.

Burns Cleanly and Efficiently — Even at Low Output

The I 620 FRL delivers a nominal output of 9.0kW and heats spaces of up to 171m², so it suits larger living rooms and open-plan areas that need a powerful, sustained heat source. Importantly, Jøtul designed this insert to burn at an optimal level even when you run it at low output. Because of this, a gentle background fire stays clean and efficient rather than smouldering the way lesser inserts tend to at lower settings — a genuine practical advantage over the course of a long heating season.

In terms of emissions, the I 620 FRL performs strongly. Dust particle emissions come in at just 11 mg/Nm³ — an outstanding figure for a wood burning insert of this output. Clean Burn technology keeps combustion thorough throughout every session, and intuitive symbols on the air vents make controlling the burn straightforward for anyone. On top of that, the insert supports closed combustion and includes an external air intake, so it works reliably even in modern, well-sealed homes where indoor air supply might otherwise be a concern.

Easy to Install, Versatile Enough for Old and New Fireplaces

Jøtul designed the I 620 FRL to suit both traditional open fireplace renovations and more contemporary new build fireplace designs. Because of this dual suitability, it opens up well to a broader range of installation scenarios than many three-sided inserts allow. A slim, removable decorative frame comes as standard, giving you a clean, polished transition between the insert face and the surrounding wall or fireplace surround without needing additional finishing work.

The firebox takes logs up to 60cm in length, which gives you good flexibility when sourcing and cutting firewood. The flue exits from the top only, so confirm this works with your chimney configuration early in the planning process — that way, your installer can proceed without delays. To find out more about what a professional installation involves from start to finish, visit our installation process page. For full technical documentation directly from the manufacturer, visit the official Jøtul I 620 FRL product page.