Since 1959, Radiant has been designing and manufacturing the main components of all its products. The technological advancements aimed at greater energy efficiency and reliability are 100% ensured by the Radiant wall-mounted boiler.

The ONE-TECH® condensing heat exchanger features wide-section coils made from a single INOX Ø 28 mm tube, ensuring higher thermal efficiency and lower thermal load losses. The 60+ years of experience provide the necessary expertise for the design and manufacture of the heat exchanger that equips the R 1K series condensing boilers.

The DIGITECH® SYSTEM displays the boiler's temperatures and functions in a readable manner, providing the ability to set the desired temperature with great accuracy. It has the capability to control external sensors, solar panels, sensors for external boilers, autonomy valves, and a multitude of additional components.

• All components are arranged for easy inspection and repair.
• The hydraulic connection of the closed expansion tank is at the top for easy replacement.
• The transformer is not part of the control board, making it easily and quickly replaceable.
• All components are connected with brass fittings for easy repair.
• The special sound-absorbing funnel helps reduce noise.
• The components are made from high-quality branded materials.
• “Clapet” non-return valve for easy connection to central exhaust systems.
• Total flue gas blockage for maximum temperature utilization in the heat exchanger.
• Inverter circulator with PWM for speed/flow regulation of the water.

Specifications:

• Nominal thermal power (Max) kW: 28
• Nominal thermal power (Min) kW: 3.7
• Closed expansion tank capacity (C.E.T) L: 8
• Dimensions Height x Width x Depth mm: 787 x 420 x 370
• Electrical protection rating IP: X5D