Ariston Clas One IN 25 LPG Condensing Boiler for Built-in Installation with 25 kW Casing Code 3301331 - Complete with Flue Gas Exhaust Kit

Technical Features

Model

Heating energy efficiency Class A (A+ achieved thanks to thermoregulation)
XL profile sanitary energy efficiency Class A

Product Code: 3301331

Energy Efficiency

Nominal heat input max/min (heating) PCI: 22-3.7 kW
Nominal heat output max/min (domestic hot water) PCI: 26-3.7 kW
Max/min useful thermal power (heating): 21.5-3.5 kW
Efficiency at nominal heat output (60/80°C) PCI: 97.6%
Efficiency at nominal heat output (30/50°C) PCI: 106.1%
Efficiency at 30% (30° C) PCI: 109.8%
Max/min heating temperature (high temperature): 82-35°C
Max/min heating temperature (low temperature): 45-20°C
Max/min sanitary temperature: 60-36°C

Performance

Quantity of hot water (deltaT 25°C): 14.5 l/min
Quantity of hot water (deltaT 35°C): 10.4 l/min
Specific flow rate (first 10' with deltaT 30°C): 12.1 l/min
minimum operating temperature (-20°C with antifreeze kit) -15°C
Power supply voltage/frequency V/Hz 230-50
Total absorbed electrical power: 85.6.7W
Electrical system protection rating IP X5D

Dimensions

Dimensions mm (HxWxD) 1140 x 590 x 240

General Features

• Clas ONE IN
  
  
  
  Characteristics
  
  Ariston exclusive XtraTech™ stainless steel exchanger with high head
  Exchanger passage sections +142% compared to the previous version
  Modulation ratio 1:7
  BusBridgeNet® communication protocol
  AUTO function, Comfort
  Class A+ in heating thanks to the Sensys system manager and external probe as standard
  Minimum operating temperature down to -20°C*
  Semi-automatic filling
  Built-in unit in electro-galvanized sheet metal (to be ordered with separate code)
  Flue pipe 80, 60, 50 mm
  
  
  
  HIGH EFFICIENCY
  Product characterised by high energy performance, reduced consumption and polluting emissions.
  
  
  MODULATION RATIO
  Automatic power regulation based on heating demand
  
  
  MODULATING CIRCULATOR
  Modulating circulator for optimizing consumption and maximizing performance
  
  
  SYSTEM MANAGEMENT
  New communication protocol designed to ensure complete system management.
  
  
  MADE IN ITALY
  Produced entirely in Italy
  
  
  AUTO FUNCTION
  Maximum comfort, efficiency, and energy savings based on automatic analysis of environmental conditions, connected external devices, and required performance.
  
  
  OUTDOOR INSTALLATION
  Possibility of outdoor installation thanks to all the weather protection devices.
  
  
  COMFORT FUNCTION
  Speeds up the delivery of hot water in two modes: Comfort Plus Mode (always hot water in just 5") and Comfort Mode (hot water for 30' after the last draw).
  
  
  EXTRA SMALL DIMENSIONS
  Extremely small footprint to fit any space problem