Jotul I 400 Harmony Fireplace Insert
The Jotul I 400 Harmony is a modern fireplace insert that combines clean Scandinavian styling with strong everyday performance. As part of Jotul’s I 400 series, this medium-sized insert features foldable glass doors and a large viewing window, giving you an excellent view of the burning logs. As a result, it is a superb choice for homeowners who want a built-in fire with a refined look and a strong flame picture.
Jotul builds the I 400 Harmony to bring both style and practicality to the room. The large glass area creates a warm and welcoming focal point, while the light coloured burn plates make the firebox look brighter and more attractive, even when the fire is not lit. In addition, the top draught helps keep the glass cleaner during use, so the view of the flames stays clearer for longer.
Why choose the Jotul I 400 Harmony?
The Jotul I 400 Harmony delivers a nominal heat output of 6.0kW and achieves 78% efficiency, so it suits a wide range of living spaces. It can heat areas of up to 129m², while clean burn technology, closed combustion, and external air intake capability help it offer efficient and controlled performance. Therefore, it gives you both strong heating and the practical features expected from a premium fireplace insert.
Another key advantage is flexibility. The Jotul I 400 Harmony can also be installed as a cassette in an open fireplace when used with a mounting kit accessory. Consequently, it can be an excellent option for fireplace renovation work as well as more conventional insert installations.
Designed for fireplace renovation and everyday use
The Jotul I 400 Harmony offers a great balance of visual appeal and practical performance. Because of its foldable glass doors and large viewing area, it creates a more open and elegant look than many traditional inserts. At the same time, its solid construction and efficient combustion make it a reliable heating appliance for daily use. Whether you are updating an older fireplace or planning a fresh inset installation, it offers an excellent combination of strong heat, clear flame views, and timeless Scandinavian design.
If you would like more information direct from the manufacturer, you can view the Jotul I 400 Harmony on Jotul’s website.
If you need help planning your project, you can also read more about our stove installation process here.
Specifications
| Height | 492 mm |
| Width | 640 mm |
| Depth | 516 mm |
| Weight | 125 kg |
| Log size | up to 40 cm |
| Flue outlet | Ø 150 mm |
| Flue exit options | Top |
| Nom output | 6.0 kW |
| Efficiency | 78% |
| Heating capacity | up to 129 m² |
| CO Emission | 0.07% |
| Dust Product Emission | 26 mg/Nm³ |
| NOx Emission | 85 mg/Nm³ |
| OGC Emission | 48 mg/Nm³ |
| Closed combustion | Yes |
| Clean burn | Yes |
| External air intake | Yes |
