Wood Boiler Prity NS32, 36 kW

Wood Boiler Prity NS32, 33.2 kW – the Most Powerful Boiler in the NS Series for a Large House

The Prity NS32 Wood Boiler is the most powerful model in the NS series and Prity's best-selling central heating boiler. It is designed for large houses, two-storey homes and villas where substantial, steady heat is needed. The boiler burns wood and coal and is designed for installation in basements and utility rooms. With a nominal back boiler output of 33.2 kW and a maximum heat output of up to 36 kW, it heats an area of up to 200 m² (approx. 730–870 m³). The back boiler with a capacity of 72 litres stores heat and releases it evenly, and the NS32 can also heat domestic hot water when connected to a hot water cylinder with a coil. The built-in capillary thermostat keeps the water temperature between 50°C and 90°C. With energy class A and an efficiency of 77.6%, the boiler provides economical heating. Made in Bulgaria by Prity 95 Ltd – a manufacturer of heating appliances since 1995.

Advantages of the Prity NS32 Boiler

• Central heating up to 200 m² – back boiler output 33.2 kW and maximum output 36 kW, the most powerful model in the NS series.
• The best seller among Prity boilers – a proven solution for large houses.
• Large back boiler (72 L) – stores heat and provides even heating throughout the home.
• Wood and coal – flexibility in your choice of fuel.
• Domestic water heating – when connected to a hot water cylinder with a coil.
• Capillary thermostat (50–90°C) – automatically regulates the combustion air and maintains the desired water temperature, improving economy.
• Mineral wool insulation – the steel heat exchanger is insulated to limit heat loss to the room.
• Ash drawer and combustion viewing port – easy cleaning and fire control without opening the door.
• Manual dampers for primary air and the flue outlet – for precise control of combustion and draught.
• Robust steel construction – 2 mm thick steel body, 3–4 mm plate, powder-coated decorative side panels.

Efficiency and Energy Class

The Prity NS32 boiler meets the European Ecodesign requirements, which guarantee low harmful emissions, high efficiency and environmentally friendly fuel combustion. With energy class A, an efficiency of 77.6% and compliance with the Ecodesign standard, it provides economical and eco-friendly central heating. CO emissions are 1110 mg/Nm³ (at 13% O₂) and the maximum flue gas temperature is 301°C. The chimney diameter is 150 mm, with a top outlet.

Important for Installation and Operation

• The boiler requires a chimney with a diameter of 150 mm – larger than the Ø130 of the NS20 and NS26. Check compatibility with your existing chimney.
• Recommended for an open heating system. In a closed system, a 1.5 bar pressure relief valve is mandatory. The boiler has no built-in overheating protection or emergency cooling coil.
• The boiler must be placed on a stable, level and non-combustible floor. The non-combustible base must extend at least 50 cm at the front and 30 cm at the sides. There must be no combustible objects within a radius of 80 cm around the boiler.
• The room must be supplied with fresh air – at least 4 m³/h per kW of output (for the NS32 this is approx. 145 m³/h).
• It is recommended that the boiler has its own dedicated chimney. Consult a specialist before connecting it.
• All parts of the system must be protected against freezing. With forced circulation, it is recommended to power the pump via a UPS. If there are copper components in the system, protection against electrolysis (magnesium anode) is required.

Technical Specifications