Defro firewood plus 24 kW solid fuel boiler in compact shape

Defro Firewood Plus 24 kW – Efficient natural draft boiler for logs

Modern, space-saving design

The Defro Firewood Plus 24 kW natural draft boiler combines a compact construction with a contemporary design. Its slim dimensions allow for flexible installation even in confined boiler rooms. Thanks to the robust boiler body made of high-quality materials, you benefit from a long service life and high stability.

Electronic draft regulator and control comfort

The integrated electronic flue controller automatically adjusts the primary air supply to the combustion process, thus optimizing the efficiency of 92.3%. Upon request, the electronics also controls the boiler circuit pump and an optional induced draft fan.

The secondary air setting can be placed on either the left or right side of the boiler. This allows you to place the boiler close to a wall, creating more space for other heating components.

Safety and environmental compatibility

The factory-installed safety heat exchanger eliminates the need for a double thermal discharge safety device. The Defro Firewood Plus meets the requirements of the German Federal Emissions Regulation (BImSchV) Stage 2 and has a CE declaration of conformity. The built-in sight glass allows for convenient monitoring of the carburetor flame and ensures high operating comfort.

Assembly and commissioning

Nationwide installation and commissioning are carried out upon request by our qualified customer service team. Delivery by truck with a lifting platform right to the curb ensures stress-free transport. After installation and connection in the closed system, the boiler is immediately ready for use.

Advantages at a glance

The Defro Firewood Plus 24 kW impresses with a solid boiler body in a compact form, an electronic fire draught regulator instead of conventional mechanical air regulation and a built-in safety heat exchanger.

Further advantages include the integrated sight glass for flame control, the sustainable heat source based on logs and the possibility of combining the natural draft boiler with modern heat pumps.

Firewood Plus - Benefits

• solid boiler body in compact form,
• electronic draft regulator as mechanical combustion air control
• factory-installed safety heat exchanger
• easy access to the heat exchanger chamber behind the combustion chamber,
• Natural draft boilers as a sustainable, crisis-proof heat source,
• can be combined with heat pumps

Technical data

• Model: Firewood Plus 24
• Energy efficiency class: A+
• Nominal heat output: 24 kW
• Efficiency: 92.3%
• Tension requirement: 24 Pa
• CO content: 13.1%
• Prescribed fuel: logs (max. length 390 mm).
• Exhaust gas temperature: 154 °C
• Exhaust gas mass flow: 19 mg/m³
• Flue pipe connection: Ø 160 mm
• Height: 1460 mm
• Width: 655 mm
• Depth: 1035 mm
• Weight: 429 kg

Scope of delivery

• Defro Firewood 24 kW
  • built-in safety heat exchanger
  • electronic draft regulator
• Cleaning tool
• Assembly and operating instructions

Download:

• Brochure
• Assembly instructions
• Operating instructions