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 Details
SKU
TSTV-CMFI-BWMM-NWM7I
Brand
Woolly Mammoth Stoves
Style
Modern
Type
Inset Stove
Fuel Type
Multi Fuel
Heat Output
6.9 kW
EcoDesign Ready
Yes
Stove Efficiency
75.8%
Weight
89.9 kg
External Dimentions
H571 x W640 x D410 mm
Max. Log Length
425 mm
Flue Outlet Location
Top / Rear
Flue Outlet Diameter
5" (125 mm)
Primary Air
Yes
Secondary Air
Yes
Tertiary Air
Yes
Colour
Black
Manufacturer: Woolly Mammoth Stoves
Woolly Mammoth stoves are of our own design and branding. They take into account the years of experience we have in knowing what our customers want in relation to design, reliability and affordability. As a consequence of tremendous popularity and sales, we are able to offer the stoves at a highly competitive price in relation to other stoves of a similar size, appearance and output.
The Woolly Mammoth brand was designed by our in-house specialists specifically for the domestic market with qualified professionals here in the UK overseeing the development of every feature and aspect. Each Woolly Mammoth stove undergoes a full 20 point check before passing quality control to ensure that every model leaves in premium condition.
Stove Options
Stove Glass Accidental Damage Cover
Replacing damaged stove glass is something most stove owners will be familiar with, be it by closing the door on a protruding log, over-tightening the glass retaining clips or the natural heat expansion of the door, chances are you have had to purchase replacement glass for your wood burning stove at least once.
By adding Glowing Embers' Accidental Damage Cover, you have peace of mind that the potentially costly process of cutting and shipping a replacement glass is covered for when those accidental breakages occur.
Terms & Conditions
Glass Protection covers you for cracked or smashed stove glass for the period of time that you select. We cover you for accidental breakage for any reason for the length of time you selected but doesn't cover for any consequential loss or installation costs. Installation is usually an easy process, and our team can talk you through it. To claim against this protection, simply send us an email prior to the expiration date (either 1 or two years from the purchase date, depending upon which option you pick) with a photo clearly showing your stove with the broken glass. We may require measurements or a template from you to cut the replacement glass accurately and your provision of this when required is conditional on our fulfilment of this protection. The protection covers you for one replacement only within the set period, additional breakages (outside of breakage on delivery which will be covered free of charge) will fall outside of this protection. This only covers flat glass cut by Glowing Embers and does not cover curved or printed glass.
Stove Fitting Kit
5" (125mm) Fitting Kit
Essential components for any stove installation into an existing chimney, this Fitting Kit for stoves with a 5" (125mm) diameter outlet collar includes an 800mm x 400mm Register Plate (Chimney Closure Plate), 5" Reducing Plate and a 1000mm length of leading brand Vitreous Enamelled Stove Pipe in 5" internal diameter.
Sited above the stove, the metal Register Plate sits on - or can be screwed up to - the 4 supplied brackets and features a pre-cut central hole (reduced to 5" diameter when used with the provided Reducing Plate) for the Stove Pipe to pass through, into the chimney cavity. This plate is easily cut to your required size and not only prevents debris or insulating granules from falling down the chimney, but also deflects heat rising from the stove into the room. The 1000mm length of leading brand Vitreous Enamelled Stove Pipe has a reduced male connection which must be fitted inside the outlet collar of the stove and sealed with our Vitcas or Kos Fire Cements, Envirograf Silicone Sealant or Heat Resistant Stove Rope. The traditional finish of our Stove Pipes not only perfectly match the body of the stove but can also withstand the heat from the burner without blemishing the finish of the flue.
6" (150mm) Fitting Kit
Essential components for any stove installation into an existing chimney, this Fitting Kit for stoves with a 6" (150mm) diameter outlet collar includes an 800mm x 400mm Register Plate (Chimney Closure Plate) and a 1000mm length of leading brand Vitreous Enamelled Stove Pipe in 6" internal diameter.
Sited above the stove, the metal Register Plate sits on - or can be screwed up to - the 4 supplied brackets and features a pre-cut 6" central hole for the Stove Pipe to pass through, into the chimney cavity. This plate is easily cut to your required size and not only prevents debris or insulating granules from falling down the chimney, but also deflects heat rising from the stove into the room. The 1000mm length of leading brand Vitreous Enamelled Stove Pipe has a reduced male connection which must be fitted inside the outlet collar of the stove and sealed with our Vitcas or Kos Fire Cements, Envirograf Silicone Sealant or Heat Resistant Stove Rope. The traditional finish of our Stove Pipes not only perfectly match the body of the stove but can also withstand the heat from the burner without blemishing the finish of the flue.
7" (175mm) Fitting Kit
Essential components for any stove installation into an existing chimney, this Fitting Kit for stoves with a 7" (175mm) diameter outlet collar includes a 1200mm x 600mm Register Plate (Chimney Closure Plate) and a 1000mm length of leading brand Vitreous Enamelled Stove Pipe in 7" internal diameter.
Sited above the stove, the metal Plain Register Plate sits on - or can be screwed up to - the 4 supplied brackets and simply requires a 7" hole cutting in it for the Stove Pipe to pass through, into the chimney cavity. This plate is easily cut to your required size and not only prevents debris or insulating granules from falling down the chimney, but also deflects heat rising from the stove into the room. The 1000mm length of leading brand Vitreous Enamelled Stove Pipe has a reduced male connection which must be fitted inside the outlet collar of the stove and sealed with our Vitcas or Kos Fire Cements, Envirograf Silicone Sealant or Heat Resistant Stove Rope. The traditional finish of our Stove Pipes not only perfectly match the body of the stove but can also withstand the heat from the burner without blemishing the finish of the flue.
8" (200mm) Fitting Kit
Essential components for any stove installation into an existing chimney, this Fitting Kit for stoves with an 8" (200mm) diameter outlet collar includes a 1200mm x 600mm Register Plate (Chimney Closure Plate) and a 1000mm length of leading brand Vitreous Enamelled Stove Pipe in 8" internal diameter.
Sited above the stove, the metal Plain Register Plate sits on - or can be screwed up to - the 4 supplied brackets and simply requires an 8" hole cutting in it for the Stove Pipe to pass through, into the chimney cavity. This plate is easily cut to your required size and not only prevents debris or insulating granules from falling down the chimney, but also deflects heat rising from the stove into the room. The 1000mm length of leading brand Vitreous Enamelled Stove Pipe has a reduced male connection which must be fitted inside the outlet collar of the stove and sealed with our Vitcas or Kos Fire Cements, Envirograf Silicone Sealant or Heat Resistant Stove Rope. The traditional finish of our Stove Pipes not only perfectly match the body of the stove but can also withstand the heat from the burner without blemishing the finish of the flue.
Flexible Chimney Liner Kit
5" (125mm) Flexible Chimney Liner Kit
Simply select your required length of Flexible Chimney Liner to complete your stove installation into an existing chimney with our essential Chimney Liner Install Kit.
This kit includes the Adapter to connect to 5" diameter Stove Pipe, your choice of 6-12m of 5" Helix twin-skinned, 316 grade, stainless Flexible Chimney Liner (suitable for use with all solid fuels, gas and oil and comes with a lifetime of the appliance warranty), a stainless Hanging Cowl with Bird Guard Mesh for chimney pots and a building regulation required Chimney Notice Plate.
6" (150mm) Flexible Chimney Liner Kit
Simply select your required length of Flexible Chimney Liner to complete your stove installation into an existing chimney with our essential Chimney Liner Install Kit.
This kit includes the Adapter to connect to 6" diameter Stove Pipe, your choice of 6-12m of 6" Helix twin-skinned, 316 grade, stainless Flexible Chimney Liner (suitable for use with all solid fuels, gas and oil and comes with a lifetime of the appliance warranty), a stainless Hanging Cowl with Bird Guard Mesh for chimney pots and a building regulation required Chimney Notice Plate.
8" (200mm) Flexible Chimney Liner Kit
Simply select your required length of Flexible Chimney Liner to complete your stove installation into an existing chimney with our essential Chimney Liner Install Kit.
This kit includes the Adapter to connect to 8" diameter Stove Pipe, your choice of 6-12m of 8" Helix twin-skinned, 316 grade, stainless Flexible Chimney Liner (suitable for use with all solid fuels, gas and oil and comes with a lifetime of the appliance warranty), a stainless Hanging Cowl with Bird Guard Mesh for chimney pots and a building regulation required Chimney Notice Plate.
Stove Essential Extras
Carbon Monoxide (CO) Alarm
Legal requirement for all stove installations, add an easy to fit CO Alarm to your order so you're ready for a safe stove installation. Free standing or wall mounted (see our Carbon Monoxide (CO) guide for correct placement), this alarm comes supplied with batteries for a minimum seven years continuous operation and meets the requirements of Building Regulations Approved Document J.
Stove Pipe Thermometer
Add our simple to read Stove Pipe Thermometer to your order and start operating your stove at its optimum performance from day one. Intended for fixing to the first length of single wall stove pipe, this thermometer accurately displays the burning temperature in both °C and °F as well as illustrating temperature zones for best operation, too hot and too low.
500g Fire Cement
Ideal for a variety of applications, Fire Cement is an essential extra for all stoves as it is required for sealing stove pipe, outlet collar and Flex Adapter connections as well as around Register Plates to prevent loss of gases and heat from the system. This ready mixed black Fire Cement creates smoke tight seals once fully cured.
Double Socket Adapter
An essential for any European model of stove, you simply won't be able to connect your flue pipe without our Double Socket Adapter. Designed to secure over the stove's outlet collar (which will be a male spigot), the Adapter converts it to a female socket to allow your Stove Pipe or Twin Wall Adapter to connect securely and safely.
(Acorn) Black Stove Companion Set
Don't forget to add a Companion Set to your order as you'll wish you have one when first lighting the stove! This 530mm tall, traditionally designed set is finished in black and features all the essential fireside tools you need suspended above a sturdy base - Tongs for positioning logs inside the firebox, a shovel and brush for cleanly removing ash and a poker to stoke the fire.
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