Fireline FX4 Multi-Fuel Stove – Compact, Efficient & Eco-Friendly Heating
Big Performance in a Small Package
The Fireline FX4 Multi-Fuel Stove is the perfect balance of compact design and powerful performance, making it an excellent choice for smaller rooms that still demand exceptional warmth and efficiency. As the smallest output model in the Fireline range, the FX4 offers a nominal heat output of 4kW, with an adjustable range from 3kW to 6.3kW, ensuring comfortable and consistent heating throughout the colder months.
Brilliant Flame Views & Stylish Design
The FX4's curved glass door provides a stunning, unobstructed view of the flames, creating a cosy atmosphere in any home. Thanks to Fireline’s advanced airwash technology, the glass stays clean for a crystal-clear view, allowing you to enjoy the full effect of the flickering firelight. With a sleek, freestanding design, the FX4 fits effortlessly into both modern and traditional interiors, while an optional log store base adds convenience and style.
Cutting-Edge Efficiency & Eco Credentials

Designed with sustainability in mind, the FX4 features Fireline’s patented tertiary air system, which enhances combustion efficiency and minimises emissions. This multi-fuel stove is DEFRA Exempt, meaning it’s legal to use in smoke control areas, and meets the highest environmental standards with clearSkies Level 5 certification. Fully SIA Ecodesign Ready, the FX4 surpasses 2022 regulations, ensuring you get an environmentally responsible heating solution that’s built for the future.
Flexible Installation & Hassle-Free Operation
With a 5” flue outlet that can be installed at the top or rear, the FX4 offers flexible fitting options to suit different fireplaces and chimney setups. The user-friendly air control system allows for effortless adjustments, helping you fine-tune the heat output and burn rate to match your needs.
Key Features at a Glance:
✔ Nominal Output: 4kW (Range: 3kW – 6.3kW)
✔ High Efficiency: 81.8% for lower fuel consumption
✔ DEFRA Approved: Safe for use in smoke control areas
✔ clearSkies Level 5 Certified: Meets the highest eco standards
✔ SIA Ecodesign Ready: Future-proof, low-emission heating
✔ Freestanding Design: Fits neatly into most fireplaces or alcoves
✔ Optional Log Store Base: Extra storage and visual appeal
✔ Airwash System: Keeps the glass clear for a perfect flame view
✔ Tertiary Air System: Optimised combustion for maximum efficiency
✔ 5” Flue Outlet: Top or rear installation flexibility
✔ Multi-Fuel Versatility: Burns both wood and smokeless fuel
✔ Energy Rating: A+ – Superior performance and economy
✔ Log Length Capacity: Up to 300mm
For homeowners looking for a powerful yet space-saving stove, the Fireline FX4 Multi-Fuel Stove is the ultimate heating solution. Combining efficiency, style, and eco-conscious technology, it offers everything you need for a warm, inviting home without the bulk of a larger model.
Flue Location
Top or Rear
Construction
Steel Body with Cast Iron Door
Energy Labelling EEi Class
A+
Output rannge
3.0kW to 6.3kW
Max Log Length
300mm (11¾")
Warranty
7 Year Stove Body
*All dimensions are offered as a guide only and subject to change. These sizes are not to be used for any building preparation.
Estimated Delivery for this product is 7-10 Days*
We offer Free Delivery within Mainland UK on all our products.
Due to the size/weight of this product, it will be delivered on a pallet. Pallet deliveries will be brought to your front door (subject to access) and you will need to arrange adequate means to take your order into your home. Under normal circumstances this may take 2 people. You will be contacted prior to despatch to arrange a suitable delivery day. A signature will be required on all deliveries.
*Subject to stock at suppliers
Due to the continuing rise in costs for delivery to Highland areas, we have reluctantly concluded that having absorbed these costs for a long time
this is regrettably no longer possible and we have had to introduce a fee for delivery to certain Scottish postcodes. Customers that live in the affected
areas will be contacted when we process your order to be advised on specific extra charges and have the opportunity to confirm the order.