Product Description ACR Tenbury T550 5KW Woodburning Insert with a removable convection outer box makes for straightforward installation with the option of a 3 or 4 sided frame to suit your setting. The Tenbury T550 can handle logs up to 40cm long or smokeless fuels. A powerful airwash helps to keep the glass clear to give a stunning view of the fire. As a DEFRA exempt appliance, the T550 can be used to burn wood even in smoke controlled areas. Specifications Height 585mm Width 620mm Depth 344mm Output Range 5kw nominal (min 3Kw / max 7Kw) Efficiency 75.4% gross / 82.9% net Hearth Requirement Constructional hearth required (hearth temp above 100 degrees) Weight 75kg Flue Diameter 125mm Smoke Exempt? Yes – approved by DEFRA for woodburning in smoke controlled areas Log Length 40cm EEI classification for ecolabelling 2018 A