Ariston NUOS EVO wall


The heat pump water heaters Ariston NUOS EVO wall provide domestic hot water by a heat pump that heats a kettle, with a monobloc system.

The heat pump mainly uses the outside air as a renewable energy source to achieve maximum energy efficiency and high energy savings.

Ariston NUOS wall EVO is available from 80 to 110 liters of volume of the kettle and the main features are:

  • eligible outside air temperatures from -5 to 42 ° C
  • Ecological gas R134A to heat water up to 62 ° C
  • Low noise fan
  • Additional electric heater
  • LCD display
  • Operating mode: green, car, boost, boost 2


Complete documentation

The operation of the heat pump water heaters Ariston NUOS EVO wall is based on thermodynamic cycle heat pump which allows to heat the hot water stored in the tank through the energy of the outside air is sucked from the ducted pipe or directly from the local.

The ecological gas R134A, using status changes due to compression and expansion cycles, draws its energy from the outdoor air and transfers it to the sanitary water stored in the tank.

The electrical energy required by the water heater in the heat pump is only that required to operate the fan and one for powering the compressor (which allows the movement of gas R134A). In case of need the electrical heater is activated which ensures the production of hot water.

The main features are:

  • Ecological gas R134A order to heat the sanitary water up to 62 ° C only with the use of the heat pump
  • eligible outside air temperatures from -5 to 42 ° C
  • COP EN16147 = 2,15 80; 2.33 mod. 110
  • Electrical power consumption mean = 250 W
  • compact product by weight = 50 kg mod. 80; 55 kg mod. 110
  • DHW capacity suitable for a substitution of an existing traditional electric kettle
  • Low noise thanks to the silent operation – 50 dB (A)
  • Kettle enameled steel with active anode and magnesium anode
  • Exchanger wound on the outside of the tank (not immersed in healthcare)
  • Immersion heater 1200W
  • LCD display
  • Operating mode: green, car, boost, boost 2 and possibility of hourly programming and sampling and legionella function.


Dati tecnici

Taglia 80 110
N. indicativo persone 1-2 2-3
Tipo di installazione Pensile
Tipo di prodotto Monoblocco
Dimensioni 1171 x 506 x 535 mm 1398 x 506 x 535 mm
Peso a vuoto 50 kg
Temperatura aria min/max -5 / 42 °C
Temperatura max acqua con Pdc 62 °C
Quantità massima di acqua a 40 °C 99 litri 133 litri
Refrigerante R134a
COP 2.15 2.33
Tempo di riscaldamento 6.42 h,mm 9.03 h,mm
Potenza elettrica assorbita media 250 W
Potenza resistenza elettrica 1200 W
Livello di pressione sonora 50 db(A)
Pressione massima esercizio 8 bar
Scambiatore di calore aggiuntivo