Boiler DEFRO GAMMA 30 kW Left/Right

SKU: F170N EAN: 2010000030226
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4 540,14 
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Defro GAMMA Series Pellet Boilers

The Defro GAMMA series boilers are modern, automated heating devices designed for wood pellets, combining high energy efficiency rated A+ with eco-friendly operation in accordance with Ecodesign standards. Offering a wide range of power options, the GAMMA boilers provide comfortable and economical heating for various applications.

Key Features of Defro GAMMA Boilers:

  • Automatic Pellet Combustion: The boiler operates fully automatically, using pellets or wood briquettes as recommended fuel, ensuring a high level of user convenience.
  • High Energy Efficiency (A+): An A+ energy class and seasonal energy efficiency for space heating of 79-81% guarantee economical fuel consumption.
  • Compliance with Ecodesign: The devices meet the stringent requirements of Commission Regulation (EU) 2015/1189 (Ecodesign) regarding low emissions of pollutants (PM, VOC, CO, NOx) during pellet combustion.
  • Wide Power Range (10-40 kW): The availability of models with rated power from 10 kW to 40 kW allows for precise matching of the boiler to the heating demand of buildings of various sizes.
  • Optimal Operation with Buffer Storage: Recommended cooperation with a properly sized hot water buffer storage tank (with a minimum capacity depending on the model) to ensure the most stable and efficient operation of the heating system.
  • Low Electricity Consumption: Boilers are characterized by low power consumption for their own needs, further reducing operating costs.

Who is This a Good Choice For?

The Defro GAMMA boilers are an excellent solution for single-family homeowners, as well as smaller commercial buildings or public utility facilities, seeking an efficient, eco-friendly, and automated pellet heating system. Their high energy class and compliance with standards make them an ideal choice for those who value savings, ease of use, and care for the natural environment.

Product Card – DEFRO GAMMA Boilers 10-40 kW

Technical Specification – DEFRO GAMMA Boilers (10-40 kW)

ParameterGAMMA 10GAMMA 15GAMMA 20GAMMA 25GAMMA 30GAMMA 40
Device Parameters
Model IdentifierGAMMA 10GAMMA 15GAMMA 20GAMMA 25GAMMA 30GAMMA 40
Fuel Feed MethodAutomatic fuel feed: it’s recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 200 lAutomatic fuel feed: it’s recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 300 lAutomatic fuel feed: it’s recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 400 lAutomatic fuel feed: it’s recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 500 lAutomatic fuel feed: it’s recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 600 lAutomatic fuel feed: it’s recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 800 l
Condensing BoilerNoNoNoNoNoNo
Co-generative Boiler for Solid FuelNoNoNoNoNoNo
Multi-functional BoilerNoNoNoNoNoNo
Parameters According to Regulation 2015/1187
Energy Efficiency ClassA+A+A+A+A+A+
Nominal Thermal Power (kW)101520253040
Energy Efficiency Index (EEI)119117118119118118
Seasonal Energy Efficiency for Room Heating (ηs) (%)807980818080
Fuel and Emissions Related to Seasonal Room Heating
Fuel(recommended / other suitable)
Logs, moisture ≤ 25 %No / NoNo / NoNo / NoNo / NoNo / NoNo / No
Wood Chips, moisture 15-35 %No / NoNo / NoNo / NoNo / NoNo / NoNo / No
Wood Chips, moisture > 35 %No / NoNo / NoNo / NoNo / NoNo / NoNo / No
Pressed Wood in the form of Pellets or BriquettesYes / NoYes / NoYes / NoYes / NoYes / NoYes / No
Sawdust, moisture ≤ 50 %No / NoNo / NoNo / NoNo / NoNo / NoNo / No
Other Wooden BiomassNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
Non-wood BiomassNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
Hard CoalNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
Lignite (including briquettes)No / NoNo / NoNo / NoNo / NoNo / NoNo / No
CokeNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
AnthraciteNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
Briquettes from Mixed Fossil FuelNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
Other Fossil FuelNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
Briquettes from a mixture (30-70 %) of Biomass and Fossil FuelNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
Other Mixture of Biomass and Fossil FuelNo / NoNo / NoNo / NoNo / NoNo / NoNo / No
PM Emission (mg/m³) – Recommended Fuel141515141415
OGC Emission (mg/m³) – Recommended Fuel171515161616
CO Emission (mg/m³) – Recommended Fuel262278279284283309
NOₓ Emission (mg/m³) – Recommended Fuel184186191198176184
Properties When Operating with Recommended Fuel Only
Generated Useful Heat
at nominal thermal power (Pn) (kW)10.215.319.825.030.138.8
at 30 % nominal thermal power (Pp) (kW)2.94.55.97.18.911.6
Operational Efficiency
at nominal thermal power (ηn) (%)85.384.784.985.184.684.6
at 30 % nominal thermal power (ηp) (%)85.683.684.384.884.383.8
for Solid Fuel Co-generative Boilers: Electrical Efficiency
at nominal thermal power (ηel,n) (%)n/an/an/an/an/an/a
Electrical Energy Consumption for Own Needs
at nominal thermal power (elmax) (kW)0.0750.0810.1010.1160.1260.132
at 30 % nominal thermal power (elmin) (kW)0.0260.0280.0320.0360.0380.041
Secondary devices for emission reduction, where applicablen/an/an/an/an/an/a
in standby mode (PSB) (kW)0.0020.0020.0020.0020.0020.002

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