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Italtherm CITY CLASS H 35 KR 28 kW

Photos - Boiler Italtherm CITY CLASS H 35 KR 28 kW
Expecting restock
Energy source: gas; Installation: wall; Type: single-circuit (heating only); Heating area (m²): 224; Condensing; Heat output (kW): 28; Coolant min. T (°C): 20; Coolant max. T (°C): 80; Heated floor mode; Efficiency (%): 105.1; Combustion chamber: closed (turbocharged); Firebox size: Dimensions (mm): 700x400x324
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Italtherm CITY CLASS H 35 KR 28 kW
21 kW
28 kW
Energy source:gas
Mount:wall, single-circuit
Boiler power:28 kW, area ~ 224 m²
Combustion chamber:closed, flue 60/100 mm
Possibility of operation on a mixture of gas and hydrogen.
All specifications
Specifications CITY CLASS H 35 KR
Main
Energy sourcegas
Installationwall
Typesingle-circuit (heating only)
Heating area224 m²
Condensing
Technical specs
Heat output28 kW
Min. heat output3.5 kW
Power supply230 В
Coolant min. T20 °С
Coolant max. T80 °С
Heating circuit max. pressure3 bar
DHW circuit max. pressure6 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
Expansion vessel capacity8 L
Expansion vessel pressure1 bar
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)700x400x324 mm
Weight34 kg
Official Websiteen.italtherm.it
Added to E-CatalogOctober 2025
The information in the model description is for reference purposes.
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