SFK Series only for domestic hot water ONE-TECH®

THE REVOLUTION IN HEAT EXCHANGERS

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

The ONE-TECH® condensing heat exchanger, manufactured by Radiant, features wide-section coils made from a single INOX Ø 28 mm tube, ensuring higher thermal efficiency, lower thermal load losses, and easier maintenance work.

UNCOMPROMISING TIMELESS QUALITY:

• 100% made in Radiant
• 100% made in Italy

The INOX heat exchanger, a Radiant patent with the registered name ONE-TECH®, ensures high levels of energy savings in the production of domestic hot water.

DIGITECH® SYSTEM

The DIGITECH® SYSTEM displays the temperatures and the boiler's operations in the most user-friendly and readable way, with large letters and icons. It allows the adjustment of the desired temperature in the recirculation and in the domestic water with great accuracy for economy.

It has the capability to control:

• external sensors
• solar panels
• sensors for external boilers
• autonomy valves
• many other additional components

THE CONSTRUCTION DETAILS THAT MAKE THE DIFFERENCE

The components of the wall-mounted boiler are arranged in such a way that they are all easily accessible for inspection and any necessary repairs.

• The only machine that comes with a pre-installed circulator.
• The transformer is not part of the control board, making its replacement easy and quick.
• All components are connected with brass fittings for easy repair.
• The special sound-absorbing funnel helps reduce noise.
• All components are made from high-quality branded materials.

The presence of a pre-installed circulator is a unique feature of the SFK series, allowing its installation in areas with ambient temperatures below 0°C. The boiler activates to protect against possible freezing and damage.

The boiler has antifreeze protection down to -15°C.

EASIER MAINTENANCE: wide-section INOX coils Ø 28 mm for minimal clogging chances and fewer interventions by the maintenance technician.

The SFK series features an integrated circulator, expanding the usage options.

Characteristics:

• Nominal thermal power (Max) kW: 34
• Nominal thermal power (Min) kW: 4.1
• Domestic hot water production with Δt 30° L/min: 17
• Electrical protection degree IP: X5D
• Dimensions Height x Width x Depth mm: 640 x 410 x 310