This is the beefy brother to the hugely-popular Flavel Arundel (the installer's favourite). The XL is rated as a 4.9kW, but has a firebox a fair bit larger - with a maximum capability of 8kW should you feed it enough fuel.
We tested the Arundel Xl during October 2019 and were very pleased indeed. Controllability is excellent - as good as it gets. The massive firebox means large logs are not an issue and the resulting heat output means that the XL punches well above its weight (it will run happily at 3kW-8kW so just choose how much wood to load).