Nolting UV 40 multi-fuel boiler

Nolting – premium German wood and biomass combustion technology. The manufacturer from Detmold has been developing and building wood-fired equipment for over eight decades. The manually fed UV boilers are also featured in the company's own historical presentation.

UV 40 – manually fed, water-backed solid fuel boiler. Traditional design heat generator for central heating systems. The following data of the advertised unit comes from the original factory data plate shown on the product page.

• 45 kW output with manual feeding: instead of 40 in the type designation, the data plate specifies 45 kW; this is the certified value to be used as a basis when designing the system.
• Manual solid fuel design: fuel loading is done manually; the exact range of usable fuels is to be clarified with the old model's factory specifications.
• 32.0 liters boiler water capacity: the boiler transfers heat to the heating system water; this is the boiler's own water volume, not the buffer storage capacity.
• 3.0 bar permissible operating overpressure: the limit specified on the data plate for selecting the system pressure and safety fittings.
• 95 °C permissible flow temperature: upper type limit, the actual operating setting must be adapted to the heating system.
• Manufactured in 1991, serial number 89811: the specific equipment can be identified based on the original data plate.

Technical documentation: a downloadable, verified copy of the exact old user manual for the UV 40 is not yet available. The performance fields on the data plate for oil/gas and automatic operation are blank; we do not provide unverified performance or equipment promises for these on this machine.

New price: the exact, verified new price of the old Nolting UV 40 was not found during the research on 2026.10.06, not even on the websites Wolf Online Shop, Heizung Billiger, and Heizungsdiscount24. We do not display estimated amounts without a source. The price of a different capacity, automatic Nolting unit would not be the exact new price of this manually fed old boiler. Introduction of the manufacturer and history of the UV series.

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