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Italtherm CITY CLASS 25 KR 20 kW

Photos - Boiler Italtherm CITY CLASS 25 KR 20 kW
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Energy source: gas; Installation: wall; Type: single-circuit (heating only); Heating area (m²): 160; Condensing; Heat output (kW): 20; Coolant min. T (°C): 20; Coolant max. T (°C): 80; Heated floor mode; Efficiency (%): 105.1; Combustion chamber: closed (turbocharged); Firebox size: Dimensions (mm): 727x400x300
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Italtherm CITY CLASS 25 KR 20 kW
20 kW
28 kW
Energy source:gas
Mount:wall, single-circuit
Boiler power:20 kW, area ~ 160 m²
Combustion chamber:closed, flue 60/100 mm
High reliability of components and assemblies. Heat exchanger made of stainless steel. Warm floors mode.
FAQ: 10 frequently asked questions about heating boilersAnswers to common questions in the section "heating boilers"
All specifications
Specifications CITY CLASS 25 KR
Main
Energy sourcegas
Installationwall
Typesingle-circuit (heating only)
Heating area160 m²
Condensing
Technical specs
Heat output20 kW
Min. heat output2.5 kW
Power supply230 V
Power consumption73 W
Coolant min. T20 °С
Coolant max. T80 °С
Heating circuit max. pressure3 bar
Consumer specs
"Summer" mode
Heated floor mode
Circulation pump
Boiler specs
Efficiency105.1 %
Combustion chamberclosed (turbocharged)
Flue diameter60/100 mm / 80/80 mm for split chimney /
Inlet gas pressure20 mbar
Max. gas consumption2.64 m³/h
Expansion vessel capacity8 L
Expansion vessel pressure1 bar
Heat exchangerstainless steel
Connections
Gas supply3/4"
Central heating flow3/4"
Central heating return3/4"
Safety
Safety systemsgas pressure drop
water overheating
flame loss
draft control
water circulation failure
frost protection
More specs
Dimensions (HxWxD)727x400x300 mm
Weight28.1 kg
Official Websiteen.italtherm.it
Added to E-Catalogjune 2018
FAQ: 10 frequently asked questions about heating boilersAnswers to common questions in the section "heating boilers"
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
Catalog Italtherm 2024 - new products, best sales and most actual models Italtherm.

Efficient boiler for radiator heating and underfloor heating

With an installed power of 20 kW, the Italtherm CITY CLASS 25 KR condensing boiler is ideal for heating apartments or private houses up to 160 m². It is equipped with an Intelligent Combustion System, which is smart electronics capable of monitoring many equipment operating parameters and adapting to any changes in real time. This allows the boiler to respond to fluctuations in the water temperature in the system and adjust to maintain it at the required level. The same ICS system controls the gas valve and water pump, ensuring the optimal air/gas ratio in the burner according to the water flow in the system. This ensures economical use of fuel, and in maximum power mode the boiler does not consume more than 2.64 m³/h of gas. In addition, the boiler offers a wide range of temperature settings, allowing the user to set the heating water from 20 °C (suitable for underfloor heating systems) to 80 °C (for radiators).

Technological solutions for boiler reliability and durability

The internal structure of the boiler, that is, its components and components, deserves special attention. Inside the Italtherm CITY CLASS 25 KR boiler you will find a high-quality circulation pump from Grundfos, a brass hydraulic group, as well as a burner and heat exchanger made of stainless steel, which is ideal for boilers of this type due to its resistance to corrosion caused by condensation. The manufacturer especially emphasizes the increased cross-section of the heat exchanger tubes, which promotes more efficient heat transfer and prevents the formation of plaque and blockages. The combination of these technological solutions guarantees high reliability of all components and simplifies maintenance, even in areas with hard water. This Italtherm CITY CLASS 25 KR boiler is an excellent choice for both new buildings and old houses with worn-out water supply pipes.

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CITY CLASS 25 KR