K21 Pellet Boiler, 42kg Manual Hopper

The HDG K10-33 pellet boiler is the latest-generation automatic pellet-burning system distinguished by its especially compact design. It can be installed practically flush with the wall on three sides of the boiler. As the boiler is supplied in parts it can easily be installed in existing buildings.
The large integrated fuel hopper on the side of the boiler is available in three sizes – as a one-day or seven-day hopper for manual filling or with an automatic pellet vacuum-feeder system. 

Automatically fed central heating boiler for A1 pellets (DIN EN ISO 17225-2)

Equipment features and specifications supplied
• Easy installation and transport on-site as the boiler is delivered in a simple to move parts.
• Extremely small footprint.
• Precise fuel metering by means of timer-controlled stoker auger

Fuel storage options

• Version 2: Manual-fill pellet hopper with safety grille and cover, filling capacity approx. 107kg

• Version 3: Seven-day manual-fill pellet hopper with safety grille and cover, filling capacity approx. 200kg

• Version 3: Pellet hopper inc. pellet vacuum-fill system, filling capacity approx. 71kg

• Burner bowl made of high-quality stainless steel with automatic ash removal and integrated primary and secondary air.

• Fully automatic, maintenance-free ignition with 2 igniter rods

• Precise air control by controlled-speed flue draught fan (top or rear connection possible)

• Automatic cleaning of heat exchange surfaces and ash removal to a wheeled ash bin for long cleaning intervals of up to 2 years

• Burn-back prevention by integrated extinguishing water tank and chute in the combustion chamber

• Intuitive-to-use heating and system controller with user-friendly 4.3" touch-screen display, combustion and output regulation by means of the combustion chamber and flue gas temperature sensor.