Palazzetti Wilma Idro+Aria, 18kW

Pellet boiler stove for central heating of spaces up to 140m2. Filled with over a decade of research and development that makes it an efficient and ecological solution for your home.

As low as €4,287.00 €3,572.50
Availability: In stock

The Wilma is part of the Ecofire series of pellet stoves by one of Italy's most well known and trusted manufacturers - Palazzetti. This boiler model is suitable for central heating of a home and has all basic devices already installed, such as a circulator pump, expansion vessel, safety valves and manometer. It also has an extra fan for direct heating of the room in which it is placed.


  • Model with boiler for central heating and a hot air fan.
  • Made of steel with ceramic tiles lining.
  • Balanced door with self-balancing hinges - easy opening and closing.
  • Ceramic glass that can withstand 800°C and an air wash system that prevents blackening. This is achieved using adjustable deflectors that optimise the airflow.
  • Firebox and potter made of very thick cast iron which increases their life.
  • 8 smoke pipes with turbulators for increased efficiency.
  • Large ash pan.
  • Primary combustion air intake can be conveyed outdoors so it does not reduce the quality of air inside the room.
  • High-efficiency flue gas heat exchanger.
  • Combustion Dynamic Control - several sensors record all possible variables during operation and a complicated software analyzes the information and activates corrective actions in order to achieve perfect operation of the stove.
  • Integrated interface for external thermostat or connection to a buffer tank.
  • Integrated hydronic unit- everything required for quick and easy installation is already in the stove: a closed membrane expansion vessel, a circulation pump (Energy Class A), an anti-condensation valve, manometer, pressure safety valve and an air vent.
  • Quick Start system that reduces ignition time. It utilises a special ceramic resistance that lights quickly the pellets, thus reducing electricity consumption.
  • Variable-speed fan.
  • Front hot air outlet.

"Star" pellet feed system:

Star feeding system


    • An exclusive innovation that offers a number of advantages in terms of performance and maintenance ease and whose heart consists of a precisely machined part from a single block of steel. The system guarantees a constant quantity of pellets being fed to the combustion chamber. The blades behive like doors that prevent air from going from the burning chamber back to the hopper. Furthermore it results in a regular and even burning that improves performance and reduces the emissions.
    • Because of the rotating motion, this system makes it possible to completely burn even the dust that usually collects on the bottom of the hopper, keeping it clean.
    • The compact size makes it noiseless which in combination with the silenced pipe reduces even further any unpleasant noise.


Intelligent Fumis Controller

Fumis display

    • User-friendly design
    • Digital touch-screen display
    • Weekly programmer with settings for operating hours on daily and weekly basis
    • Fuel-saving combustion
    • Forced air circulation for rapid and uniform space heating
    • Settings for pellet quality
    • Remote control
    • Wi-Fi connectivity (optional)
More Information
Warranty 2 Years
Weight (kg) 190.0000
Country of Manufacture Italy
Energy efficiency class A+
Heat output (kW) 18.6
Space heating output (kW) 15.2
Water heating output (kW) 3.4
Heating type Fan-assisted Convection, Hydro - Radiator
Range of heat output (kW) 5.5 - 18.6
Approximate heating surface (m²/ft²) 140
Approximate heating capacity (m³) 378
Dimension Depth (mm) 560
Dimension Width (mm) 610
Dimension Height (mm) 1220
Efficiency (%) 87
Boiler capacity (L) 20
Hydraulic kit included Yes
Maximum system pressure (bar) 2
Fuel Type Wood pellets
Min/max fuel consumption per hour (kg) 1.31 - 4.42
Flue (mm) 100
CO measured at 13% Oxygen at rated power(reduced) [%] 54.2 - 164.1 mg/Nm³
Maximum temperature of flue gas (°C) 228.2
More Information
Emissions (g/s) 8.52 - 12.8
Exhaust Location Backside
Flue gas temperature sensor Yes
Control panel Yes
Control unit Fumis
Weekly programmer Yes
Electric power supply (V/Hz) 230/50
Power consumption (W) 450W during ignition / Maximum 110W during operation
Multiple levels of power Yes
Temperature indicator Yes
Lining Ceramic
Certification CE
Cold water inlet 1"
Hot water outlet 1"
Height of Hot Water Outlet 184,5
High temperature safety thermostat Yes
Air inlet 120mm
Height of Flue Pipe 372.5
Height of Return Water Pipe 116
Height of Water Drain Valve 143.5
Drain 3/4"
Ash and soot container Yes
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