This Stovax Stockton 8 is a space-saving Slimline version, which is 75mm less in depth than the standard model. This means, in many cases, building work will not be required to deepen a fireplace opening. Although shallower, the Stockton 8 Slimline, will still take logs up to 400mm long. The Stovax Stockton 8 Slimline comes as a double door model and is opened and closed with a cast iron tool which locates over the keystone catch, and then rotates to open or close the doors. This dedicated woodburning model burns wood with a great 78% efficiency.