ACR Tenbury T400 ECO-BG Multi-Fuel Inset Stove

The ACR T400 ECO-BG 5kW Inset Multifuel Stove is a contemporary inset stove designed to fit neatly into a standard 16-inch fireplace opening, combining clean modern styling with practical, efficient heating performance. With its refined black glass door and choice of 3-sided or 4-sided frame, it offers a more design-led finish than a standard inset stove while still being highly suited to everyday British homes. A major part of the T400 ECO-BG’s appeal is its balanced mix of style and fit. Designed specifically for the standard 16-inch fireplace opening, it provides a straightforward way to modernise an existing hearth without major structural work. The sleek black glass door gives the stove a more premium and contemporary appearance, while the choice of frame style allows the final look to be tailored to the fireplace setting. The result is an inset stove that can easily turn a plain opening into a striking focal point. The large viewing window gives a generous view of the flames, and this is supported by a high-performance airwash system that helps keep the glass clearer for longer. The T400 ECO-BG is a multifuel stove, allowing it to burn logs up to 25 cm as well as approved smokeless fuels, giving greater flexibility depending on household needs and local fuel preferences. It is also DEFRA exempt, allowing wood to be burned in smoke controlled areas with confidence. In performance terms, the stove provides a 5 kW nominal output, with an output range of 2.5 kW to 6.5 kW. It achieves 74.7% gross efficiency and 82.1% net efficiency, carries an A energy rating, weighs 60 kg, and uses a 125 mm flue diameter. A constructional hearth is required, as hearth temperatures exceed 100 degrees in operation. The stove also comes with a 10 year warranty on the castings, excluding consumable items. Key Features: Contemporary inset multifuel stove Fits standard 16-inch fireplace opening 5 kW nominal output Output range 2.5 to 6.5 kW Black glass door Choice of 3-sided or 4-sided frame Burns wood and smokeless fuels Takes logs up to 25 cm High-performance airwash system DEFRA exempt Suitable for smoke controlled areas A energy rating 125 mm flue diameter Compact inset design 10 year warranty on castings Expert Insight The T400 ECO-BG stands out because it combines the practical installation benefits of the standard T400 ECO platform with a more design-focused finish. The black glass door and frame options make it a much stronger visual choice for contemporary fireplace projects where appearance matters just as much as fit. Because it still fits a standard 16-inch opening, it remains very useful for UK fireplace upgrades where space is limited and structural changes are best kept to a minimum. Suitability The ACR T400 ECO-BG 5kW Inset Multifuel Stove is well suited to modern living rooms, fireplace renovations, standard 16-inch fireplace openings, and homes wanting a contemporary inset multifuel stove suitable for smoke controlled areas. Installation / Technical Notes The stove measures 588 mm high, 473 mm wide and 334 mm deep, with a weight of 60 kg. It uses a 125 mm flue and requires a constructional hearth because hearth temperatures exceed 100 degrees. It is DEFRA exempt for wood burning in smoke controlled areas and can also burn approved smokeless fuels.