Keep your van or camper warm without the noise. The ARIZONA LN is a 12V liquid heat exchanger with a built-in low-noise fan, designed to distribute heat from a hydronic heating system into your living space efficiently and quietly.

Hot coolant from your liquid heater flows through the internal core, and the fan blows warm air into the cab or living area — working exactly like a small radiator. The front panel is heat-resistant and removable for easy maintenance.

Compatible with:

AUTOTERM Flow 5D / B
AUTOTERM Flow 14D
Any 12V hydronic heating loop with 16mm coolant connections


Key features:

Low-noise fan — ideal for sleeping areas and living spaces
3-speed fan control for precise heat distribution
2.75 kW heating capacity (using ethylene glycol)
Nominal air flow: 110 m³/h
16mm (⅝") inlet and outlet fittings — fits standard hydronic plumbing
Heat-resistant removable front panel
Maximum allowable inner temperature: 100°C
Maximum reachable temperature with AUTOTERM Flow series: 88°C


Technical specifications:

Voltage: 12V
Electrical power: 12W
Weight: 1.4 kg
Nominal air flow: 110 m³/h
Heating capacity (ethylene glycol): 2.75 kW
Coolant connections: ø16 mm


Manufacturer: SIROCO