Firebull S18 45 kW / 900 m³ - Hot Air Stove

The FIREBULL S18 wood-burning convection stove is the flagship of the FIREBULL range and represents the most powerful model in the lineup. With an output of 18–45 kW and a heating capacity of up to 900 m³, it is the ideal solution for heating large spaces such as hangars, community halls, warehouses, production facilities, or extensive workshops. These stoves are designed for maximum efficiency and longevity, making them an excellent choice for intensive operation.

Key Features of the FIREBULL S18 Wood-Burning Stove

• Highest Output in the Range: The most powerful hot-air stove in the FIREBULL series can heat spaces up to 900 m³, making it an ideal choice for industrial and commercial use.
• Spacious Combustion Chamber: Allows for loading logs up to 108 cm in length, extending burn time and minimizing the need for frequent operation.
• Perfect Combustion: The stove is equipped with front and rear primary air intakes and a secondary intake below the baffle. All intakes are regulated via dampers, allowing for optimized combustion and output adjustment according to current needs.
• Convenient Operation: With appropriately selected dry roundwood matching the maximum length for this stove type, the unit can maintain heat and burn for up to 12 hours without interruption or stoking.
• Large Firebox Viewing Window: The glass door provides a stunning view of the flames, helping to create a pleasant atmosphere even in vast spaces.
• Simple Maintenance: FIREBULL S18 stoves are designed to require minimal maintenance—ash removal is typically needed only about once a month.

The robust tubular design of the Canadian Bullerjan type ensures a long lifespan and durability even under demanding operation. The FIREBULL S18 is the ideal solution for anyone seeking a reliable, easy-to-operate, and extremely powerful heat source for heating large commercial and industrial buildings. For more information about Firebull stoves, visit our "About Firebull Stoves" page.

Important Technical Specifications

• Nominal Heat Output: 18 – 45 kW
• Heated Space: 360 – 900 m³
• Energy Efficiency: 80.7%
• Efficiency Class: A
• Fuel Consumption: 11.5 kg/h
• Max. Log Length (Optimal): 108 cm (90 cm)
• Flue Diameter (Rear Outlet): 180 mm
• Standards: EN 13240:2001, ECODESIGN 2022, BImSchV Stage 2

Frequently Asked Questions

What is the warranty for the Firebull S18 stove?

Firebull S18 hot-air stoves come with a three-year warranty period, ensuring their long service life and performance.

Does the three-year warranty also cover the door glass?

The warranty does not cover the door glass, as it is considered a consumable material that can be mechanically damaged during normal use.

What is the lifespan of the Firebull S18 stove?

Firebull S18 stoves feature a lifespan of up to 20 years when operated according to instructions. Overloading, such as heating the unit until it glows red, can negatively affect its lifespan. Adhering to the maximum output ensures trouble-free operation for many years.

Does the Firebull S18 stove comply with current standards, and if so, which ones?

Yes, the Firebull S18 stove complies with all necessary standards, including EN 13240:2001, ECODESIGN 2022, and the German BImSchV Stage 2 standard. These standards confirm its ecological operation, high efficiency, and low emissions, making it the perfect choice for extensive industrial or commercial spaces.

Can I use the Firebull S18 stove as a primary heating source?

Yes, the most powerful model, the Firebull S18, can be used as a primary heating source. Due to its high output, it is ideal for large spaces, though care must be taken to select the correct model relative to the volume of the space you wish to heat.

What is the heating capacity of the Firebull S18 stove?

FIREBULL S18 stoves have a heating capacity of up to 900 m³, which is ideal for heating extensive areas such as production halls and warehouses.

What fuel is suitable for the Firebull S18 stove?

The Firebull S18 convection stove allows for the combustion of wood logs or briquettes up to 108 cm in length, while the ideal fuel length for maximum efficiency is 90 cm.

How long does the Firebull S18 stove burn on a single full load?

When using dry, unsplit wood logs of the optimal 90 cm length (maximum 108 cm) and setting the air dampers to low-power combustion, the Firebull S18 stove can maintain a fire for up to 4 hours without the need for further stoking.

How long will the Firebull S18 stove burn from the last full load until it completely cools down?

The Firebull S18 hot-air stove can burn for up to 12 hours after the last load of dry, unsplit roundwood with a maximum length of 108 cm. This performance is achievable with the air dampers correctly set to minimum combustion and after operating for at least 8 hours, allowing sufficient hot embers to accumulate in the firebox. Once completely cooled, however, the fire must be restarted, for example, using matches.

How often must ash be removed from the Firebull S18 stove?

Ash from the Firebull S18 stove is removed approximately once or twice a month. These stoves are designed without a grate or ash pan, meaning the fire is built directly on the bottom (tubes) of the stove. After the fire dies down and cools, a new fire is started on a layer of ash. Ash should be removed once it reaches the lower part of the loading door. A shovel, metal bucket, or ash vacuum cleaner can be used for this purpose. The ash is repeatedly re-combusted, resulting in minimal waste, and it also protects the bottom of the stove from the heat.

Links

Installation and Operating Manual for Firebull Hot Air Wood Stoves

Downloads

Firebull S18 - Energy label "A+"