Back Boiler Fireplace Prity AC W20, 20 kW

Back Boiler Fireplace Prity AC W20, 20 kW – compact corner unit with cast iron door and radiator heating

The Prity AC W20 Wood Burning Fireplace in an elegant black graphite finish is a compact corner model with a cast iron door that combines the cosiness of a real fire with the efficiency of central heating. The 20 kW back boiler supplies the radiators in your home, while around 5 kW more heat radiates directly into the room where the fireplace is installed. This allows it to heat a volume of up to around 470–555 m³. At just 660 mm wide, the unit fits easily even into narrower corners, while the large loading door (290 x 580 mm) and the internal ash pan make maintenance convenient. With energy class A, 78.3% efficiency and a 3-year warranty, this fireplace is a reliable solution for heating the whole home. Made in Bulgaria by Prity 95 Ltd – a manufacturer of heating appliances since 1995.

Advantages of the Prity AC W20 Wood Burning Fireplace

• Compact corner model – only 660 mm wide, also suitable for narrower corners.
• Cast iron door – sturdy, resistant to high temperatures and with a classic look.
• 20 kW back boiler – heats the whole home via radiators.
• Additional radiant output of around 5 kW – the room with the fireplace is heated directly.
• Heated volume of up to around 555 m³ – suitable for houses and larger homes.
• Large loading door – 290 x 580 mm, convenient loading of logs up to 53 cm.
• Internal ash pan – easy and clean cleaning.
• 34 L back boiler – steady heat transfer to the heating system.
• Thermal shock resistant ceramic glass and cast iron grate – a clear view of the flame and even burning.
• Combustion control damper and manual flue outlet damper – for control over the flame and the chimney draught.
• 3-year warranty – a longer warranty than wood burning fireplaces without a back boiler.

Efficiency and Energy Class

The Prity AC W20 Wood Burning Fireplace meets the European Ecodesign requirements, which guarantees low harmful emissions, high efficiency and environmentally friendly combustion of wood. With energy class A, 78.3% efficiency, compliance with the Ecodesign standard, CE certification and a 3-year warranty, it provides economical and eco-friendly heating. The chimney diameter is 200 mm, with a top flue outlet, and the required draught is 13.7 Pa.

Important for Installation and Operation

• Do not light the fireplace without water in the back boiler and without connected radiators or convectors – this will damage the appliance.
• An open heating system is recommended. With a closed system, a 1.5 bar safety valve is mandatory.
• The fireplace has no built-in overheating protection – the system must be designed and installed by a specialist.
• With forced circulation, it is advisable to power the circulation pump via a UPS so that it keeps working during a power cut.
• If the system contains copper components, protect it from electrolysis with a magnesium anode or similar protection. Protect all parts from freezing.
• The fireplace requires a chimney with a diameter of 200 mm. The connection to the system is via a G 1" inlet and outlet.
• The maximum log length is 53 cm. Use dry wood with a good calorific value.

Technical Specifications