The RADEL DELONGHI radiators incorporate PHD technology, according to which the flow of water is first distributed to the front surface of the body and then to the back surface. This asymmetric circulation of water in the radiator has advantages that fully satisfy the requirements of thermal comfort, energy saving, and environmental respect. Heat is delivered only where it is useful, while unnecessary dispersion is minimized.

• Construction material: Special sheet metal with deep stamping, thickness 1.25mm
• Safety: All Delonghi Radel radiators are tested at a pressure of 13 bar to ensure proper operation at 10 bar pressure.
• Maximum operating temperature: 110°C
• Connections: 4 ½" sockets with internal threading for external loop bodies, 2 ¾" sockets with external threading for integrated loop bodies
• Painting: Radel bodies are painted in 3 phases: 1) Hot phosphating degreasing with zinc-manganese material 2) Pre-painting with electrostatic method in an oven at 180°C 3) Final painting with epoxy powder (Epoxy resin, polyester varnish RAL 9010) in an oven at 160°C
• The rounding of corners and the length of the grille holes limited to 8mm according to German safety standards BAGUV-LGA make them ideal for installation in public spaces, schools, kindergartens, and hospitals