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Alfa S

Pellet stove with natural convection
  • Convection
  • Thermal power: 2,1 - 6,5 kW
  • Heats up to: 155 m3 (about 57 m2 )
  • Burn time: 10 - 32 h
Coating and colour:

Technical specifications

Nominal power (kW) 2,1 - 6,5
Heat input power (kW) 2,3 - 7,2
Size H x L x P (cm) 106 x 39 x 59
Net weight (Kg) 148,5
Pellet fuel consumption per hour min/max (Kg/h) 0,5 - 1,5
Efficiency (min/max) 90,5 - 92,7
Flue exit pipe (ø mm) 80 (Superiore, Laterale con kit)
Tank capacity (Kg) 15
Burn time - min/max (h) 10 - 32
Installed power (W) 21
Energy class A+
Measures and data are indicative. The parent company reserves the right to make changes to its products at any time, without notice, for either technical or commercial reasons.


  • Ash Tray

    Comfortable and easy removable drawer to collect the ashes burnt.

  • Clear

    An additional air channel, creates an air cushion between the flame and the glass -ceramic, guaranteeing its sharpness for several operating hours.

  • Firex

    The special combustion chamber made of Firex 600/700, a vermiculitebased material, resulting from the research and development conducted by Ravelli.

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  • Hermetic

    The system takes the air necessary for combustion directly from outside without drawing cold air into the room.

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  • Pellet Pilot

    Directly linked to the work of the K Probe, Pellet Pilot is an innovative pellet feeding system based on the maximum and minimum output of the machine, to avoid waste and maintain.

  • RDCS

    Ravelli Double Cleaning System Double Cleaning System of the Intelligent brazier, the machine performs an automatic two-stage self-cleaning process. The first uses excess oxygen, while the second cleans the rear section.

  • Cast iron heat exchanger

    An efficient temperature exchange process means a perfectly heated home. The exchangers accumulate heat, optimising the exchange with the environment and for long periods.

  • Smart Firepot

    Self-cleaning precision casting brazier for better cleaning that maximizes energy efficiency.

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  • K probe

    It detects the temperature of the flame in the combustion chamber and allows a more rapid and reliable control during the phase of switching on and off, during the automatic restart.

  • Total Kontrol

    Total Kontrol is the combination between Ravelli Double Cleaning System and the K probe to generate a better efficiency and functionality.

  • Touch Remote

    Remote control for switching on, and off, and adjusting the heater from distance and from different rooms than the one where the appliance is located.

  • Ceramic Ignitor

    It guarantees a fast ignition time as it reaches high temperatures very quickly. It is also characterized by a great energy efficiency and reliability over time if compared to a traditional resistor, being highly resistant to thermal stress and corrosion.


Self-cleaning firepot – Hermetic stove – Cast iron top – Steel painted sides – Cast iron heat exchange surface – Upper and side flue exit as standard – Touch remote

Zero philosophy

Zero Philosophy is the philosophy of well-being that distinguishes our latest generation products, to create a world around you that naturally accompanies your habits.

For us, Zero Philosophy means making your daily life more comfortable and putting you at the center of our attention: that is Zero daily maintenance, Zero noise, Zero dispersion, Zero waste.

Zero Philosophy, infinite tranquility.

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This product meets the criteria for eco-compatible design and complies with the energy efficiency and particulate emissions requirements established by the European Ecodesign 2022 Regulation for domestic biomass appliances.