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Italtherm CITY CLASS 25 K 20 kW

Photos - Boiler Italtherm CITY CLASS 25 K 20 kW
Outdated Product
High-tech gas double-circuit wall-mounted condensing boiler with a microprocessor control system, an advanced modulating burner and proprietary Intelligent Combustion System technology. It is the youngest model of the Italtherm City Class family. Equipped with a closed combustion chamber, it is characterized by increased energy efficiency (efficiency up to 105.1%) and significant useful heat output (up to 25 kW). This heating capacity is quite enough to organize heating of detached cottages, as well as office, commercial, household and industrial premises with a total area of 25 to 200 m². It is an efficient modern combined solution that can be installed directly in residential areas. Compared to classic models, the Italtherm CITY CLASS 25 K boiler demonstrates a higher efficiency, which,...with the same heat output, saves up to 5% of natural gas. Such a significant effect is achieved due to additional cooling of the combustion products, which makes it possible to extract the latent heat of condensation of water vapor present in hot flue gases. Equipped with an innovative gas burner with a wide modulation range of 1:10 and durable heat exchangers.
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Italtherm CITY CLASS 25 K 20 kW
Energy source:gas
Mount:wall, dual-circuit
Boiler power:20 kW, area ~ 160 m²
Combustion chamber:closed, flue 60/100 mm
DHW temperature:from 30 °С, up to 55 °С

High-tech gas double-circuit wall-mounted condensing boiler with a microprocessor control system, an advanced modulating burner and proprietary Intelligent Combustion System technology. It is the youngest model of the Italtherm City Class family. Equipped with a closed combustion chamber, it is characterized by increased energy efficiency (efficiency up to 105.1%) and significant useful heat output (up to 25 kW).

This heating capacity is quite enough to organize heating of detached cottages, as well as office, commercial, household and industrial premises with a total area of 25 to 200 m². It is an efficient modern combined solution that can be installed directly in residential areas. Compared to classic models, the Italtherm CITY CLASS 25 K boiler demonstrates a higher efficiency, which, with the same heat output, saves up to 5% of natural gas. Such a significant effect is achieved due to additional cooling of the combustion products, which makes it possible to extract the latent heat of condensation of water vapor present in hot flue gases. Equipped with an innovative gas burner with a wide modulation range of 1:10 and durable heat exchangers.

All specifications
Specifications CITY CLASS 25 K
Main
Energy sourcegas
Installationwall
Typedual-circuit (heating and DHW)
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
DHW circuit max. pressure6 bar
Consumer specs
DHW min. T30 °С
DHW max. T55 °С
Performance (ΔT=25°C)14.8 L/min
"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
Connections
Mains water intake1/2"
DHW flow1/2"
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
Weight28.4 kg
Official Websiteen.italtherm.it
Added to E-Catalogjune 2018
Information in model description is for reference purposes.
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CITY CLASS 25 K