Eco inset 400

Product Information

Mourne Eco Inset 400 Wood-Burning & Multi-Fuel Stove

Compact Sophistication. Effortless Hearth Upgrades.

The Mourne Eco Inset 400 brings the rugged, enduring spirit of the Mourne Mountains into a highly compact, space-saving inset design. Specifically engineered to fit seamlessly into a standard British or Irish 16-inch fireplace opening, it allows you to replace a drafty, inefficient open fire without the need for extensive building work or structural alterations.

With its clean lines and flush-fit frame, the Inset 400 transforms your existing hearth into a sleek, contemporary focal point that radiates incredible warmth.

Key Features & Benefits

• Standard 16" Fireplace Fit: Specially proportioned to slot straight into traditional fire openings, making it the ultimate hassle-free solution for home renovations.
• Highly Efficient 5.0 kW Output: Delivers the perfect ambient heat for standard-sized family living rooms, snug spaces, or kitchens without overpowering the room.
• Multi-Fuel Versatility: Engineered to perform optimally whether you choose to burn seasoned wood logs or authorized smokeless solid fuels.
• EcoDesign Ready & DEFRA Approved: Built with advanced clean-burn technology. The tertiary air system reinjects pre-heated air into the top of the firebox to burn off smoke particles, earning an ErP A energy rating and full legal clearance for smoke-controlled zones.
• Advanced Airwash Glass Cleanliness: A continuous curtain of secondary air sweeps down across the viewing window, keeping soot and ash at bay so your view of the fire remains crystal clear.
• Premium Hybrid Build: Combines a rapid-convecting, heavy-gauge steel body with a robust, contemporary cast iron door for lasting heat retention.

Technical Specifications

Feature | SpecificationNominal Heat Output | 5.0 kW
Efficiency Rating | 75.0% – 80.0% (depending on fuel type)
Energy Rating | ErP A
Fuel Type | Multi-Fuel (Wood and Smokeless Fuels)
Flue Outlet / Diameter | Top / 125 mm (5")
Outside Air Connection | Yes (Optional Direct Air Kit Available)
Certifications | EcoDesign 2022 Ready, DEFRA Approved
Dimensions (Insert Box) | 550 mm (h) × 405 mm (w) × 345 mm (d)

Maximum Heat, Zero Wasted Space

While traditional open fires lose up to 80% of their heat straight up the chimney, the Mourne Eco Inset 400 completely reverses those numbers, capturing the energy and radiating it back into your room.

Because it sits flush within the wall, it frees up valuable floor space, making it perfect for smaller rooms or minimalist aesthetics. Complete with intuitive dual air controls and a tool-free internal maintenance setup, it offers modern luxury in an incredibly practical package.

Upgrading an old open fire?

Get in touch with our team today for a copy of the structural dimension guide or to check compatibility with your existing chimney liner.