Wall-mounted condensing boiler with instantaneous domestic hot water production.
• High production of domestic hot water, more power during domestic hot water operation.
• Modulation ratio 1:9.
• Multifunction relay for connection to systems with zone valves or external pump management or remote alarm signalling.
• 9 litre heating expansion vessel.
• High-efficiency modulating circulator with built-in deaerator.
• Compact, only 250 mm deep.
• Certified for operation with hydrogen blends up to 20%.
Technical Features
Model
- Ischia KC 24 S (LPG)
- Product Code: KIEI06KC24
Energy Efficiency
- Nominal thermal power (Pnominal): 23 kW
- Nominal heat input (Qn): 23.7 kW
- Seasonal space heating energy efficiency (ηs): 92 %
- Water heating energy efficiency (ηwh): 84%
- Nominal thermal power (80-60°C) (Pn): 22.8 kW
Performance
- Thermal power (50-30°C): 24.9 kW
- Reduced heat output (Qr): 3.0 kW
- Useful efficiency at nominal flow rate (80-60°C): 96.3%
- Useful efficiency at nominal flow rate (50-30°C): 105.1%
- Useful efficiency at 30% (30°C return): 107.2 %
Characteristics
- Heating expansion vessel capacity: 9 l
- Nominal heat output in domestic hot water: 27.3 kW
- Specific sanitary flow rate ΔT=25K: 16.1 l/min
- NOx emission class: 6
- Electrical protection rating: IPX4D IP
- Energy class: A
Dimensions
- Dimensions (LxHxD): 400x700x250 mm
- Gross Weight: 32 kg
General Features

The Ischia KC is a sealed-chamber, forced-draught condensing boiler for producing hot water for heating and instantaneous domestic hot water production.
Available in 24 kW and 28 kW models.
PLUS
- High production of domestic hot water, more power during domestic hot water operation (28 - 30 kW).
- NOx emissions class 6.
- Modulation ratio 1:9.
- Multifunction relay for connection to systems with zone valves or external pump management or remote alarm signalling.
- 9 litre expansion vessel.
- High-efficiency modulating circulator with built-in deaerator.
TECHNICAL CHARACTERISTICS
- LCD user interface with diagnostics.
- Management of 2 types of solar thermal systems (with additional kit).
- Thermoregulation with external probe (optional).
- Compact, only 250 mm deep.
- Provision for connection to the Remote Control (optional, supplied by the manufacturer).
- Programmable parameters to adapt the boiler to the installation and alarm history.
- Automatic bypass.
- Heat exchanger in thermopolymers and stainless steel.
- 3-speed circulator with built-in deaerator.