The MPM Wood Plus 14 is a modern wood gasification boiler with a nominal output of 14 kW for the efficient combustion of logs. It meets the requirements of Class 5 according to PN-EN 303-5:2021-09 as well as the Ecodesign Directive and achieves energy efficiency class A+.
Ideal for single-family homes and smaller commercial units with buffer storage operation.

Highlights/Advantages

⭐ Wood gasification technology – efficient, clean combustion of firewood
⭐ Energy efficiency class A+ (EEI 118) – reduced emissions and high efficiency
⭐ Class 5 according to PN-EN 303-5:2021-09 – meets current environmental requirements
⭐ Large filling chamber (~52 dm³) – comfortable burning time of up to approx. 5 hours
⭐ Operation possible in open or closed systems – flexibly deployable

MPM Wood Plus 14 wood gasification boiler

Area of ​​application & Target audience

The MPM Wood Plus 14 is a water-bearing wood gasification boiler with manual feeding for operation with logs (moisture content ≤ 25%). It is designed for open and closed heating systems and is particularly suitable for:

• Single-family homes

• smaller residential properties

• Workshops, commercial pavilions and service businesses

The maximum flow temperature is 90 °C at a permissible operating pressure of 1.5 bar.

The unit is designed for use exclusively with a buffer storage tank. According to the product data sheet, a buffer volume of at least 800 liters is required; 300–800 liters are technically recommended.

Everyday benefits

The wood gasification principle involves combustion in two separate chambers: First, the wood is degassed, then the resulting wood gases are combusted in a ceramic combustion chamber. This ensures:

• stable combustion

• high energy yield

• reduced emissions

• clean exhaust gas routing

The large loading chamber with a volume of approximately 52 dm³ allows for a burning time of up to approximately 5 hours with an average fuel consumption of approximately 3.5 kg/h.

Technology & equipment

The boiler consists of welded steel boiler sheet with 40 mm mineral wool insulation.

Key features:

• Metal-ceramic burner

• Movable cast iron grate

• Vertical convection channels with swirl unit

• Mechanical train control

• Thermometer in the upper boiler area

• Connection sleeves for flow and return (38.1 mm)

• DBV-1 valve connection

• exhaust connection at the rear

The required chimney draft is approximately 0.18–0.21 mbar.
Recommended return temperature: at least 55 °C.

Efficiency & Environment

The MPM Wood Plus 14 meets the requirements of EU Regulation 2015/1189 (Ecodesign) and achieves:

• Seasonal energy efficiency: 81%

• Energy efficiency class: A+

• Energy Efficiency Index (EEI): 118

• Efficiency at rated power: 83.7%

Emission values ​​for firewood ≤ 25% moisture content:

• Dust (PM): 13 mg/m³

• OGC: 16 mg/m³

• CO: 500 mg/m³

• NOx: 146 mg/m³

The boiler complies with class 5 according to PN-EN 303-5:2021-09 and bears the CE mark (2023).

compatibility & System integration

The wood gasification boiler is for:

• open heating systems according to PN-EN 12828

• closed systems with membrane expansion vessel

• thermal safety valve DBV-1

• Return flow boost (e.g. 3- or 4-way mixing valve)

A return temperature of ≥ 55 °C is mandatory to prevent corrosion and tar formation.

Technical data

Scope of delivery

• MPM Wood Plus 14 boiler

• User manual

• Warranty documents

Accessories/Recommendation (Cross-selling)

For compliant and long-lasting operation, we recommend:

• Buffer tank 800 liters or larger

• Thermal safety valve DBV-1

• Return temperature boost (thermostatic mixing valve 55 °C)

• Draft regulator for the chimney

• Acid-resistant stainless steel chimney

Suitable buffer tanks and safety groups can be found at:
https://gemashop.de

Assembly & Safety instructions

• Installation exclusively by a qualified specialist company

• Only use dry firewood (≤ 25% moisture)

• Return temperature at least 55 °C

• No operation without a buffer tank

• No burning of plastic, treated wood or liquid fuels

Improper operation will result in the loss of warranty.

FAQ

1. Which fuels are permitted?
Firewood with a residual moisture content of ≤ 25%. Other fuels are not permitted.

2. Is a buffer storage tank mandatory?
Yes. Operation is only permitted with a buffer tank. According to the product data sheet, at least 800 liters.

3. Can the boiler be operated in a closed system?
Yes, with a diaphragm expansion vessel, safety valve and thermal protection (e.g. DBV-1).

4. What energy efficiency class does the boiler have?
A+ with an EEI of 118.

5. What is the minimum return temperature required?
At least 55 °C to prevent corrosion and tar formation.

6. What are the chimney requirements?
Minimum cross-section 180 x 180 mm or Ø 178 mm, minimum height 7 m, required tension approx. 0.20 mbar.

Conclusion

The MPM Wood Plus 14 wood gasification boiler is a technically sophisticated solution for efficient heating with logs. With Class 5, Ecodesign compliance, and an A+ energy rating, it offers a sustainable and high-performance heating solution for modern heating systems with buffer storage.

Order now and modernize your heating technology efficiently.