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.

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

Get more details and information about Baxi products

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