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Condensing boilers 

Nuvola Duo-tec+

Combi condensing boilers with DHW storage

Residential
Wall Hung

The range of Nuvola Duo-Tec+ condensing boilers is characterized by long term reliable performance. 


The 40-litres storage tank delivers hot water as soon as you turn on a tap.



The 1:7 modulation means efficiency and savings thanks to the reduction of boiler on/off cycles.

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Characteristics


  • Models: 16, 24, 33
  • Modulation up to 1:7 reduces on-off cycles for improved efficiency and savings. Silent and durable, delivering a stable comfort
  • Automatic combustion control to maintain constantly the highest level of efficiency
  • Up to 500 lt DHW in 30 minutes (∆T 30°C)
  • Stainless steel 40-litre tank
  • Digital control panel with back-lit LCD display
  • Remote control Baxi Mago as optional
  • DHW expansion vessel (mod. 33 GA VES)
  • Connection pipes supplied as standard


Features

Digital Ready

It can be connected to BaxiMAGO, the WI-FI smart modulating thermostat, and Baxi service App. You can have your boiler always under control

    Hybrid Ready

    It facilitates the integration of other heating sources, such as heat pumps and solar thermal, simplifying the climate management of your home

      Gas Adaptive Control

      It automatically detects the kind of gas and continuously adjusts the gas-to-air ratio for the highest quality combustion and savings

        1:7 modulation

        Modulation up to 1:7 reduces on-off cycles for improved efficiency and savings
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          Technical Specification 

          MODELS162433
          ErP data
          Rated heat outputkW122028
          Useful heat output at rated heat output and high temperature regime(2) P4kW122028
          Useful heat output at 30% of rated heat output and low temperature setting(1) P1kW46,79,4
          Space heating – Seasonal energy efficiency ƞs%939393
          Useful efficiency at rated heat output and high temperature setting(2) ƞ4%88,18888
          Useful efficiency at 30% of rated heat output and low temperature setting(1) ƞ1%989898,1
          Sound power level, indoors LWAdB524953
          Declared load profileXLXLXL
          Heat input/output
          Rated heat input (Qn) for domestic hot waterkW16,524,734
          Rated heat input (Qn) for heatingkW12,420,628,9
          Rated heat output (Pn) for domestic hot waterkW162433
          Rated heat output (Pn) 80/60 °C for heatingkW
          Rated heat output (Pn) 50/30 °C for heatingkW13,121,830,6
          Heating circuit
          Temperature range for heating circuit°C25/8025/8025/80
          Water capacity of expansion vessell7,57,57,5
          Domestic water circuit
          Temperature range for domestic water circuit°C35/6035/6035/60
          Domestic water production with ΔT = 25 °Cl/min9,213,818,9
          Domestic water production with ΔT = 35 °Cl/min6,69,813,5
          Combustion
          Diameter of separate discharge pipesmm80/8080/8080/80
          Diameter of coaxial discharge pipesmm60/10060/10060/100
          Nitrogen oxide emissions NOxmg/kWh221515
          Flue gas mass flow rate (max)kg/sec0,0080,0120,016
          Flue gas mass flow rate (min)kg/sec0,0010,0020,002
          Electrical characteristics
          Power supply voltageV230230230
          Power supply frequencyHz505050
          Rated electric powerW7688108
          Dimensions
          Humidity protection rating (EN 60529)IPX5DX5DX5D
          Net weightkg626262
          Dimensions (height/width/depth)mm950/600/466950/600/466950/600/466

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          Energy label

          Energy label

          Product Documentation

          No documentation available.

          Instructions manual for users and fitters

          Instructions manual for users and fitters

          Product Documentation

          No documentation available.

          Data sheet

          Data sheet

          Product Documentation

          No documentation available.

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