Woolly Mammoth 7i – 6.9kw Multifuel Inset Stove With 4 Sided Frame (PRE ORDER LAUNCHING LATE NOV ’25)

THIS STOVE IS PRE ORDER ONLY – This stove will not be available until late November for dispatch)

The Woolly Mammoth 7i Inset Stove is a powerful and efficient heating solution, expertly engineered for modern living. Designed to fit seamlessly into your existing fireplace opening, this 6.9kW multifuel inset stove delivers the perfect blend of contemporary styling, robust construction, and exceptional heating performance.

Built from premium steel and featuring a large glass viewing window, the 7i provides a beautiful, uninterrupted view of the flames, bringing warmth and atmosphere to your home. Its advanced triple air control system—including primary, secondary (airwash), and tertiary air intakes—offers precise combustion control, cleaner burning, and increased efficiency whether you’re burning seasoned wood or smokeless solid fuels such as anthracite or eco briquettes.

Fully compliant with Eco Design 2022 and DEFRA Smoke Exempt standards, the Woolly Mammoth 7i is designed for clean, environmentally responsible burning—even in Smoke Control Areas. With an inset design and sleek 4-sided frame, this stove delivers a flush, minimalist look that’s ideal for both traditional fireplaces and contemporary interiors.

Every Woolly Mammoth stove is backed by the industry-leading 5-Year Mammoth Warranty PLUS, providing extended coverage on the body, door, and even the glass for complete peace of mind.

Key Features

• 6.9kW Nominal Heat Output (Wood) / 6.8kW (Anthracite): Powerful yet controllable heat output suitable for medium to large-sized rooms, ensuring optimal warmth and comfort.
• High Efficiency – up to 78.5%: Engineered for outstanding performance, the Woolly Mammoth 7i offers 75.8% efficiency when burning wood and 78.5% with anthracite, maximising heat while reducing fuel consumption.
• Multifuel Capability: Burn a range of approved fuels including seasoned logs, smokeless anthracite, eco logs, and briquettes for versatile and efficient heating options.
• EcoDesign 2022: Fully compliant with the latest clean-burning regulations.
• Inset Design with 4-Sided Frame: A stylish, space-saving installation that fits flush within your fireplace opening, creating a sleek and seamless finish.
• Triple Air Control System: Independently adjustable primary, secondary (airwash), and tertiary air inlets ensure precise control over combustion, improved efficiency, and cleaner glass.
• Airwash Glass Cleaning System: Keeps the viewing glass clear by channelling a continuous flow of preheated air across its inner surface, reducing soot and residue build-up.
• Ceramic Brick & Vermiculite Firebox Lining: Retains heat and protects the stove body for longer-lasting performance and improved fuel efficiency.
• Cool Hearth Compatible (12mm Hearth Approved): Safe for installation on a 12mm non-combustible decorative hearth, eliminating the need for a full constructional base.
• Top Flue Outlet Connection: Features a top-mounted flue outlet for easy integration with both new and existing chimney systems (minimum flue height 4.5m).
• Low Emission Performance: Exceptionally low carbon monoxide output — 0.06% (wood) and 0.10% (anthracite) at 13% O₂, for a cleaner, safer burn.
• Durable Steel Construction: Precision-engineered steel body ensures excellent heat transfer, long-term reliability, and a refined, modern appearance.
• Safe & Simple Operation: Fitted with easy-access controls, removable ash pan, and a grate system for straightforward cleaning and refuelling.
• Safety Features: Requires a permanent air supply and carbon monoxide alarm (1–3m from appliance). Must not be used with an extractor fan in the same room.
• Chimney System Compatibility: Suitable for lined masonry chimneys or factory-made insulated flues meeting BS EN 15287-1:2007 and T450 N2 S D3 standards.
• 5-Year Mammoth Warranty PLUS: Comprehensive coverage on the stove body, door, and viewing glass, protecting against manufacturing defects for five years when installed in compliance with building regulations.

Technical Data

• Fuel: Multifuel
• Nominal Heat Output: 6.9kW
• Energy Efficiency Rating: A
• ECO Ready: Yes
• Total Efficiency: 75.8%
• External Height: 571mm
• External Width: 640mm
• External Depth: 410mm
• Max Log Length: 425mm
• Outlet Diameter: 125mm
• Outlet Diameter: 5″
• Primary Air: Yes
• Secondary Air: Yes
• Tertiary Air: Yes
• Outlet Location: Top/Rear
• Weight: 89.9kg