Double-circuit Italtherm City Class 20 F 21 kW + Chimney

Weight: 304 kg
Depth: 300 mm
Equipment: Built-in exhaust fan
Description: Type of heating boiler: gas, max. thermal power: 21 kW, number of circuits: double-circuit, placement: wall-mounted, fuel: natural gas, liquefied gas, type of combustion chamber: closed, type of power supply: single-phase, at
Width: 400
Height: 700
Control: Electronic
Functions: Auto-diagnostics, auto-ignition, pump blocking protection, frost protection, overheating protection, switch-on indication, flame modulation, underfloor heating connection, programmer, electric ignition
Efficiency: 92 %
Accommodation: Wall
Power type: Single-phase
Fuel: Natural gas, liquefied gas
Combustion chamber type: Closed
Heated area: 200 m²
Minimum heat output: 9.5 kW
LPG consumption: 1 kg/h
Maximum coolant temperature: 80°C
Maximum temperature in the DHW circuit: 55°C
Maximum water pressure in the DHW circuit: 6 bar
Secondary heat exchanger material: Stainless steel
Minimum temperature in the DHW circuit: 35°C
Expansion tank volume: 8 l
Coaxial chimney diameter: 60/100 mm
Gas connection: 3/4"
Branch pipe for connecting the DHW circuit: 1/2"
Heating circuit connection: 3/4"
Natural gas consumption: 2.22 m³/h
Number of circuits: Double-circuit
Primary heat exchanger material: Copper
The principle of operation of a gas boiler: Convection
Type of heating boiler: Gas
Max. thermal power: 21 kW
Maximum thermal load: 19.5 kW
Maximum water pressure in the heating circuit: 3 bar
Minimum heating medium temperature: 35°C
Minimum heat load: 81 kW
Hot water capacity at t 25°C: 11.2 l/min
Hot water capacity at t 30°C: 9.3 l/min