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Back Boiler Fireplace Prity M W18, 18.4 kW

Wood Burning Fireplace with Back Boiler Prity M W18, 18.4kw | Wood Burning Fireplace Inserts | Wood Burning Fireplaces |
Wood Burning Fireplace with Back Boiler Prity M W18, 18.4kw | Wood Burning Fireplace Inserts | Wood Burning Fireplaces |
Wood Burning Fireplace with Back Boiler Prity M W18, 18.4kw | Wood Burning Fireplace Inserts | Wood Burning Fireplaces |
Wood Burning Fireplace with Back Boiler Prity M W18, 18.4kw | Wood Burning Fireplace Inserts | Wood Burning Fireplaces |
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Wood Burning Fireplace with Back Boiler Prity M W18, 18.4kw | Wood Burning Fireplace Inserts | Wood Burning Fireplaces |
Wood Burning Fireplace with Back Boiler Prity M W18, 18.4kw | Wood Burning Fireplace Inserts | Wood Burning Fireplaces |
Wood Burning Fireplace with Back Boiler Prity M W18, 18.4kw | Wood Burning Fireplace Inserts | Wood Burning Fireplaces |
Wood Burning Fireplace with Back Boiler Prity M W18, 18.4kw | Wood Burning Fireplace Inserts | Wood Burning Fireplaces |
Back Boiler Fireplace Prity M W18, 18.4 kW

Back Boiler Fireplace. Model for central placement.

  • Stock: In Stock
  • Brand: Prity
  • SKU: 08.434.006
£801.64
Excl. VAT

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Estimated delivery
22.Oct.2026
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Back Boiler Fireplace Prity M W18, 18.4 kW – compact front-facing unit for radiator heating

The Prity M W18 Wood Burning Fireplace in an elegant black graphite finish is a front-facing model that combines the classic look of a built-in fireplace with the efficiency of central heating. The 18.4 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 430–510 m³. The compact body (700 x 710 mm) is easy to build in, and the 37 L back boiler ensures steady heat transfer to the heating system. With energy class A, 78.3% efficiency and a 3-year warranty, the M W18 is Prity's most affordable 18.4 kW Back Boiler Fireplace. Made in Bulgaria by Prity 95 Ltd – a manufacturer of heating appliances since 1995.

 


Advantages of the Prity M W18 Wood Burning Fireplace

  • 18.4 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 510 m³ – suitable for houses and larger homes.
  • 37 L back boiler – a large water volume for steady and even heat transfer.
  • Compact front-facing body – 700 x 710 x 590 mm, easy to build in.
  • Prity's most affordable 18.4 kW back boiler fireplace – powerful heating at an excellent price.
  • 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.
  • Sturdy steel body – made of 2 mm thick steel, a 3–4 mm plate, and a wooden door handle.
  • 3-year warranty – a longer warranty than wood burning fireplaces without a back boiler.

Efficiency and Energy Class

The Prity M W18 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.

Technical Specifications

Back boiler output 18.4 kW
Radiant output 5 kW
Approximate heated volume 430–510 m³
Efficiency 78.3%
Energy class A
Environmental standard Ecodesign
Warranty 3 years
Type Front-facing
Back boiler capacity 37 L
Inlet / outlet G 1" / G 1"
Combustion chamber dimensions (H x W x D) 360 x 575 x 490 mm
Required chimney draught 13.7 Pa
Weight 121 kg
Dimensions (W x H x D) 700 x 710 x 590 mm
Chimney diameter 200 mm (top outlet)
Characteristics
Nominal heat output (kW) 18.4
Weight (kg) 121.0000
Country of Manufacture Bulgaria
Dimension Depth (mm) 590
Dimension Width (mm) 700
Dimension Height (mm) 710
Warranty 3 Years
Certification CE
Approximate heating surface (m²) 131
Energy efficiency class A
Flue (mm) 200
Exhaust Location Top side
Efficiency (%) 78,3
Approximate heating capacity (m³) 354
Nominal water heating output (kW) 18.4
Construction material Steel
Required chimney draught (Pa) 13.7
Space heating output (kW) 5.1
Cold water inlet G 1''
Hot water outlet G 1''
Heating type Hydro - Radiator
Emissions (g/s) 21,2
Placement Center
Combustion chamber dimensions (Height, Width, Depth), mm 360x575x490