HWAM 4520 Wood Burning Stove
Danish Design, Choice Of Base Height & Intelligent Combustion Control
The HWAM 4520 Log burning stove pairs elegant Scandinavian design with genuine installation flexibility, making it a popular choice for homeowners who want a stove that fits their room exactly as they picture it. Compact yet full of presence, it suits both contemporary and more traditional interiors.
This model is built for homeowners who value choice as much as performance, whether that means raising the firebox for a stronger visual impact or keeping the stove low and understated. It’s equally suited to a first-time stove installation or a considered upgrade within an existing fireplace opening.
The HWAM 4520 is available on a low base or a high base, giving homeowners control over how prominent the stove becomes within the room. It also comes with a choice of Classic or Modern door styles, in black or grey steel finishes, so the stove can be tailored to match existing decor.
Base Height & Design Flexibility
Choosing between a low or high base changes the entire character of the stove within a room.
- Low base – a subtle, grounded look that sits comfortably in smaller or more traditional rooms
- High base – raises the firebox to eye level, creating a stronger focal point and easier viewing of the flame from a seated position
Both base options share the same combustion technology and heating performance, so the decision comes down to how the stove is intended to sit within the room, rather than any difference in output.
Classic Or Modern Door Styles
The HWAM 4520 is offered with two distinct door styles, allowing homeowners to choose the look that best suits their interior.
The Classic door has a more traditional framed appearance, adding a touch of familiar detailing to the stove’s front. The Modern door, by contrast, offers a cleaner, more glass-fronted finish for a pared-back, contemporary look. Both styles are available in black or grey steel.
A Confident Flame Picture
However it’s configured, the HWAM 4520 is designed to put the fire itself centre stage.
A generous glass door provides a clear, uninterrupted view of the flame, while the slim surrounding frame keeps the overall appearance understated. Raising the stove on a high base further improves sightlines to the fire, particularly in rooms with seating set back from the hearth.
Everyday Heating Performance
The HWAM 4520 is designed to provide dependable, everyday warmth for small and medium-sized living spaces.
With a nominal heat output of approximately 4.9kW, it offers a comfortable level of heat without overwhelming the room. Convection design helps spread that warmth evenly, supporting a steady, consistent temperature rather than concentrated heat close to the appliance.
HWAM 4520 Stove Autopilot & SmartControl Technology
Combustion management sits at the heart of how the HWAM 4520 performs.
As standard, the stove is fitted with HWAM® Autopilot™, a mechanical air-control system that automatically regulates the air supply as the fire burns, reducing the need for constant manual adjustment. For homeowners who want a more hands-off approach, HWAM® SmartControl™ is also available on selected configurations, offering electronic combustion monitoring alongside a companion app for setting room temperature and receiving guidance on refuelling.
Built For Modern, Smoke-Conscious Homes
Clean-burning performance is increasingly important to homeowners, particularly those in smoke control areas.
The HWAM 4520 reflects current DEFRA and EcoDesign expectations for Log burning stoves, giving homeowners confidence that they’re choosing an appliance suited to modern regulatory standards. Paired with HWAM’s established combustion technology, it offers a considered way to enjoy a genuine wood fire responsibly.
HWAM 4520 Stove Installation Compatibility
The HWAM 4520 has been designed to fit a range of practical installation scenarios.
An optional external air connection allows combustion air to be drawn from outside the property, which can be useful in newer, well-insulated, or particularly airtight homes. The choice of low or high base also gives installers flexibility when working around existing hearths, fireplace openings, or room proportions.
A Stylish And Adaptable Heating Solution
Altogether, the HWAM 4520 Log burning stove combines Danish design, the choice of a low or high base, Classic or Modern door styles, dependable everyday heating, and the option of HWAM® Autopilot™ or HWAM® SmartControl™ combustion management, all within 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 Log burning stove collection for similar models. For full manufacturer detail, homeowners can also explore the official HWAM stove collection.
HWAM 4520 Stove Technical Specifications
| Specification | Low Base – Classic | Low Base – Modern | High Base – Classic | High Base – Modern |
|---|---|---|---|---|
| Performance & efficiency | ||||
| Nominal heat output | 4.9 kW | 4.9 kW | 4.9 kW | 4.9 kW |
| Energy efficiency class – HWAM® Autopilot™ | A+ | A+ | A+ | A+ |
| Energy efficiency class – HWAM® SmartControl™ | A+ | A+ | A+ | A+ |
| Efficiency – HWAM® Autopilot™ | 82.0% | 82.0% | 82.0% | 82.0% |
| Efficiency – HWAM® SmartControl™ | 81.0% | 81.0% | 81.0% | 81.0% |
| Recommended chimney draught | 12 Pa | 12 Pa | 12 Pa | 12 Pa |
| Fuel | Wood | Wood | Wood | Wood |
| Combustion control | ||||
| HWAM® Autopilot™ (standard) | Yes | Yes | Yes | Yes |
| HWAM® SmartControl™ (optional) | Yes | Yes | Yes | Yes |
| Dimensions (cm) | ||||
| Height | 93.0 | 93.0 | 104.0 | 104.0 |
| Width | 50.0 | 50.0 | 50.0 | 50.0 |
| Depth | 40.6 | 40.6 | 40.6 | 40.6 |
| Combustion chamber | 35.8 | 35.8 | 35.8 | 35.8 |
| Weight & flue | ||||
| Weight (steel, c/m door) | 100 kg | 100 kg | 102 kg | 102 kg |
| Flue / smoke outlet | 6″ | 6″ | 6″ | 6″ |
| Flue outlet position | Top | Top | Top | Top |
| Height to top outlet (from floor) | 89.8cm | 89.8cm | 100.8cm | 100.8cm |
| Combustion air (fresh-air kit – optional) | ||||
| Rear connection (Ø100 mm) | Yes | Yes | Yes | Yes |
| Base connection (Ø100 mm) | Yes | Yes | Yes | Yes |
| Minimum clearances to combustible materials (cm) | ||||
| Behind | 10 | 10 | 10 | 10 |
| Side | 59 | 59 | 35 | 35 |
| Sides, in front of the stove | 59 | 59 | 35 | 35 |
| In front | 120 | 120 | 120 | 120 |
| Corner (45°) | 57 | 57 | 31 | 31 |
| Floor / hearth | – | – | 28.5 | 28.5 |
| Approvals & compliance | ||||
| DEFRA Exempt | Yes | Yes | Yes | Yes |
| EcoDesign compliant | Yes | Yes | Yes | Yes |
| EN 13240 | Yes | Yes | Yes | Yes |
| DIBt | Yes | Yes | Yes | Yes |
| Standards | NS 3058/3059 · LRV · BImSchV Stufe 2 · RLU · HKI | NS 3058/3059 · LRV · BImSchV Stufe 2 · RLU · HKI | NS 3058/3059 · LRV · BImSchV Stufe 2 · RLU · HKI | NS 3058/3059 · LRV · BImSchV Stufe 2 · RLU · HKI |
| Finishes available | Black, Grey | Black, Grey | Black, Grey | Black, Grey |
Figures sourced directly from HWAM’s technical data for the 4520 range. Door style (Classic framed vs Modern glass-fronted) affects appearance only — dimensions, clearances, and performance are identical between door styles at a given base height. Clearances apply to both insulated and uninsulated flue gas pipe installations.















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