Chesneys Alpine 4WS MK3 Wood Burning Stove
The Chesneys Alpine 4WS MK3 Wood Burning Stove combines compact proportions with impressive heating efficiency, making it an excellent choice for modern homes where performance and clean-burning technology matter just as much as appearance.
Designed for homeowners looking for an efficient and environmentally conscious heating solution, this stove delivers reliable warmth while maintaining a clean, understated design that works naturally in a wide range of interiors. Whether installed within a fireplace chamber, integrated into a contemporary feature wall, or used as part of a renovation project, the Alpine 4WS MK3 offers flexibility without dominating the room.
One of the standout features of this model is its exceptionally low emissions performance. The stove is DEFRA exempt for use in smoke control areas, allowing it to be used legally across major towns and cities throughout the UK. It also produces emissions significantly below the permitted level for comparable DEFRA-exempt models, helping homeowners reduce environmental impact while still enjoying the atmosphere and comfort of a real wood-burning fire.
Compact Design for Modern Living Spaces
The Alpine 4WS MK3 has been designed to fit comfortably into a variety of room layouts without sacrificing heating performance.
Its compact dimensions of 410mm wide, 586mm high, and 307mm deep make it particularly suitable for smaller fireplaces, modern living spaces, and properties where space efficiency is important. The clean lines and balanced proportions create a timeless appearance that complements both traditional and contemporary interiors.
Because of its versatile size, the stove can work equally well in a dedicated fireplace setting or within custom-designed installations where a more built-in appearance is preferred.
Efficient Heating Performance
Alongside its refined appearance, the Alpine 4WS MK3 delivers strong day-to-day heating efficiency.
With a nominal heat output of 4.4kW and a heat range between 2.5kW and 5kW, it provides comfortable warmth suitable for many living rooms, family spaces, and medium-sized areas. The output level is balanced to create a pleasant heating experience without overwhelming the room.
Its impressive net efficiency rating of 85.2% also means more of the energy generated from the fuel is converted into usable heat within the home. Higher efficiency can help reduce fuel consumption while maintaining effective heating performance throughout colder months.
Installation Flexibility
The stove has been designed with practical installation considerations in mind, allowing greater flexibility when integrating it into different room layouts.
Distance to combustible materials includes:
- Rear clearance: 100mm
- Side clearance: 200mm
These spacing requirements help installers plan safe and effective positioning while maintaining a clean final appearance.
The Alpine 4WS MK3 has a weight of 89kg, providing a solid and durable construction while remaining manageable within many installation scenarios.
For homeowners planning a new stove project, understanding the requirements of a professional stove installation can help ensure the appliance performs efficiently and safely. You can also learn more about the wood-burning stove installation process before selecting the final setup for your home.
A Practical Choice for Contemporary Homes
The Chesneys Alpine 4WS MK3 is particularly well suited to homeowners who want an efficient heating appliance with lower emissions and compact dimensions.
Its combination of DEFRA approval, high efficiency, controlled heat output, and understated design makes it a practical option for urban properties, renovated homes, and modern interiors where both performance and appearance are important considerations.
To find out more about what a professional installation involves, visit our installation process page. For full technical documentation directly from the manufacturer, visit the official CHESNEYS product pages for the Chesneys Alpine 4WS MK3 Wood Burning Stove.
Chesneys Alpine 4WS MK3 Wood Burning Stove — Technical Specifications
Core Specifications
The following specifications apply to the Chesneys Alpine 4WS MK3 wood burning stove.
| Specification | Detail |
|---|---|
| Nominal Output | 4.4 kW |
| Heat Range | 2.5 kW – 5.0 kW |
| Efficiency | 85.2% |
| Energy Efficiency Class | 85.2% NET Efficiency Rating |
| DEFRA Exempt | Yes |
| Emissions Performance | Produces emissions approximately one tenth of the level permitted for comparable DEFRA exempt stoves |
| Dimensions | See Dimensional Download Below |
Dimensions & Weights
| Specification | Alpine 4WS MK3 |
|---|---|
| Height | 58.6 cm |
| Width | 41.0 cm |
| Depth | 30.7 cm |
| Weight | 89 kg |
Safety Distances
| Distance to Combustibles | Detail |
|---|---|
| Rear | 10.0 cm |
| Side | 20.0 cm |







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