Ferroli KALIS 24 C Condensing Boiler with Flue Gas Outlet

The Ferroli KALIS 24 C gas condensing boiler is a high-performance unit designed to provide comfort and efficiency in heating and domestic hot water (DHW). With a nominal power of 20 kW for heating and 24.3 kW for DHW, this compact boiler is ideal for homes seeking an efficient, quiet, and sustainable solution, with the ability to operate on both natural gas and LPG without the need for additional kits.

Main Features

• High energy efficiency (A): with a seasonal efficiency of 93%, it ensures optimized performance that reduces both consumption and emissions.
• Stainless steel primary heat exchanger: guarantees durability, corrosion resistance, and minimal maintenance, even in installations with variable quality water.
• Intelligent "Gas Adaptive" system: the MC2 Multi Combustion Control automatically adjusts combustion to maintain optimal operation, even with variations in pressure or air and gas quality.
• 1:6 modulation range: ideal for low heating demands in mid-seasons, allowing the boiler to operate at low power, optimizing energy consumption.
• Compatibility with solar systems: incorporates the "Sun Easy" mode, allowing the boiler to combine with solar preheating systems for DHW, maximizing sustainability and savings.
• Compact and elegant design: with dimensions of just 700 x 420 x 250 mm, it can be installed even within kitchen units or in confined spaces.
• Quiet operation: with a maximum noise level of 48 dB, this boiler ensures exceptional acoustic comfort.

Technical Data

• Nominal power for heating: 20 kW.
• Nominal power for DHW: 24.3 kW.
• Seasonal heating efficiency: 93%.
• Energy class: A.
• NOx class: 6 (emissions < 56 mg/kWh).
• Gas: compatible with natural gas and LPG through simple configuration.
• Dimensions: 700 mm (height) x 420 mm (width) x 250 mm (depth).
• Noise level: 48 dB.
• Flue outlet: 50 mm diameter.

Functional Advantages

• Energy savings and sustainability: with a leading seasonal efficiency in its category and a system that optimizes combustion, it reduces energy consumption and pollutant emissions.
• Flexible installation: its compact design allows installation in confined spaces, even within kitchen units, and its smoke protection system facilitates integration into collective systems.
• Easy maintenance: the stainless steel heat exchanger is designed to offer high durability and minimize the need for maintenance, extending the equipment's lifespan.
• Compatibility with cold environments: prepared to operate in partially protected locations with temperatures down to -5 °C.
• Anti-reflux system: includes an anti-reflux valve to prevent issues in overpressure exhaust systems.

Optional Accessories

• Connect Smart WiFi Chronothermostat: available at an additional cost, allows managing the boiler from mobile devices via an app, achieving up to 15% additional energy savings.

Technical Summary

• Power: 20 kW for heating and 24.3 kW for DHW.
• Modulation range: 1:6.
• Gas: compatible with natural gas and LPG.
• Dimensions: 700 x 420 x 250 mm.
• Warranty: 3 years on parts.

The Ferroli KALIS 24 C boiler combines energy efficiency, compact design, and advanced technology to meet the heating and DHW needs of modern homes. Its versatility, low maintenance, and quiet operation make it an ideal choice for those seeking comfort and sustainability.