HWAM 4640 Wood Burning Stove

Danish Design, Natural Stone Cladding & Strong Everyday Heat

The HWAM 4640 stove brings HWAM’s wide-glass 4600-series design together with the option of natural stone cladding, for a stove that feels like a genuine material statement rather than just a steel appliance. As a result, it suits homeowners who want warmth, texture, and a broad flame picture combined in one design. Its wide glass door keeps the fire firmly centre stage, whichever cladding is chosen.

This model suits homes where texture and material matter as much as form. Consequently, it works particularly well in interiors built around natural materials, stone, timber, or warm neutral palettes, where the cladding can echo the wider scheme.

Homeowners can choose the HWAM 4640 stove with a Classic or Modern door, in either steel or natural stone cladding. In addition, HWAM® SmartControl™ is available on this model, offering a higher heat output than HWAM® Autopilot™ alone.

Classic Or Modern Door Styles On The HWAM 4640

The HWAM 4640 stove comes with two distinct door styles, so homeowners can choose the look that best suits their interior.

• Classic (4640c) – a traditional framed door, adding a touch of familiar detailing to the stove’s front
• Modern (4640m) – a cleaner, more glass-fronted door for a pared-back, contemporary look

Homeowners can order either door style in black or grey steel, before choosing whether to add a cladding finish.

Steel Or Natural Stone Cladding

The standout feature of the HWAM 4640 is the choice of cladding, which changes both the look and the feel of the stove entirely.

• Steel – black or grey steel, for the cleanest and lightest option in the range
• Soapstone cladding – a dense, heat-retentive stone with a soft, tactile grey-green finish
• Natural stone cladding, Tobacco – a warm, deep brown stone finish
• Natural stone cladding, Dark Galaxy – a darker, richly textured stone finish
• Natural stone cladding, Moca Cream – a lighter, warm-toned stone finish
• Terrastone Clay cladding – an earthy, clay-toned stone finish

Because natural stone retains heat well, clad versions of the HWAM 4640 continue radiating warmth gently after the fire has died down. This makes the stove feel comfortably warm for longer, even once active combustion has finished. Every cladding option shares the same underlying stove and heating performance, so the decision is entirely about material and finish.

A Wide, Confident Flame Picture

However the HWAM 4640 stove is finished, its wide glass door keeps the fire at the centre of the room.

The extra-wide glass section, shared across the whole HWAM 4600 series, broadens the view of the flame considerably. Meanwhile, the option of stone cladding gives the stove a more substantial, grounded presence, without losing the clean Scandinavian lines underneath.

Strong Everyday Heating Performance

The HWAM 4640 stove delivers a strong, dependable heat output for everyday use.

With HWAM® Autopilot™, the stove offers a nominal heat output of 7.0kW, rising to 8.0kW with HWAM® SmartControl™. As a result, homeowners who choose SmartControl gain both automated combustion management and a genuine step up in heating capacity.

Autopilot & SmartControl Technology

Combustion management sits at the heart of how the HWAM 4640 stove performs.

As standard, HWAM® Autopilot™ automatically regulates the air supply as the fire burns, so homeowners rarely need to make manual adjustments. For those who want an even more hands-off approach, HWAM® SmartControl™ is also available on this model. This electronic system monitors combustion automatically, delivers a higher heat output, and, through a companion app, lets homeowners set a room temperature and receive guidance on refuelling.

Built For Modern, Smoke-Conscious Homes

Clean-burning performance matters increasingly to homeowners, particularly those in smoke control areas.

The HWAM 4640 stove meets current DEFRA and EcoDesign expectations for wood burning appliances, so homeowners can feel confident they’re choosing a stove suited to modern regulatory standards. Combined with HWAM’s established combustion technology, it offers a considered way to enjoy a genuine wood fire responsibly.

HWAM 4640 stove Installation Compatibility

The HWAM 4640 stove fits a range of practical installation scenarios.

An optional external air connection lets installers draw combustion air from outside the property, which proves especially useful in newer, well-insulated, or particularly airtight homes. Furthermore, because cladding adds noticeably to the stove’s overall weight and required clearances, floor loading and room dimensions should always be checked as part of the installation survey, particularly with heavier stone finishes.

A Stylish And Adaptable Heating Solution

Altogether, the HWAM 4640 stove combines Danish design, a wide-glass flame view, Classic or Modern door styles, steel or natural stone cladding, strong everyday heating, and the option of HWAM® Autopilot™ or HWAM® SmartControl™ combustion management. Ultimately, it offers a finish suited to modern, smoke-conscious homes.

To find out what a professional installation involves, visit our installation process page, or browse our wider wood burning stove collection for similar models. For full manufacturer detail, homeowners can also explore the official HWAM stove collection.

HWAM 4640 stove Technical Specifications