You might like to read more in depth information about The Clean Air Act of 1956 and 1968.
A Defra Exempt stove has passed a lab test where its emissions are measured at its rated output and at a reduced rate. This is to help reduce air pollution in towns and cities that are Smoke Control Areas. A Defra Exempt stove can generally be used to burn wood in a Smoke Control Area - it actually depends what fuel the lab test was carried out with but this is nearly always firewood.
It is worth noting that the Ecodesign legislation, in effect since 2022, establishes emissions limits that are arguably even stricter than those set for Defra Exemption. However, the framework does not include the low output test. We may well see the introduction of an additional low output test for stoves that can be used in Smoke Control Areas after 2022.
The 6100 come in 4 different formats. The 6140 is the smallest model and the firebox will of course be the same on all 4 models.
The 6143 has a taller log store under the stove making the height 950mm.
The 9 Air is the model to choose if you have a well sealed house and need to fit a direct air supply.
The Skanterm Emotion S can be rotated on its log store by 120º, has a huge panoramic window spanning most of the front face of the stove which has a unique eye shape. A 4kW, 82.3% efficient woodburner, the Skanterm Emotion S functions as well as it looks.
The Skantherm Emotion M is an eye-shaped contemporary stove with a large window stretching nearly the full width of the stove. At 7kW the Emotion M is a designer stove suited to heating a medium/large room.
Here we have the Future Fires Panoramic FX1 which is an oval stove with very wide window. At 8 kW this stove is suited to the medium sized room and the shape and very wide window will make an impression on any room.