Heater unit only — no fitting kit included. This listing is for the Autoterm Flow 5kW heater unit (diesel, 5D model) only. No installation accessories, pipework, or fitting hardware is included.
The Autoterm Flow 5kW (formerly known as the Binar 5S) is an independent liquid heater built for van conversions, overlanding vehicles, motorhomes, and boats. It works independently of the vehicle engine — preheating coolant before start-up to eliminate cold starts, extend engine life, and keep your cab warm.
Available in 12V and 24V — same price for both.
Why van builders and overlanders choose it
Pre-warms the engine before starting — protects against cold-start wear in winter builds and high-altitude trips
Heats the passenger cab via the vehicle's existing coolant circuit and cabin fan — no extra air ducting needed
Runs on diesel (same tank as the vehicle) — no separate fuel source required
Operates at only 42W running power — minimal drain on your leisure battery system
Compact and lightweight: 2.4kg heater unit, 220 × 90 × 136mm
Can also heat small radiator systems and boilers up to 30 litres
Key specifications
Heating output: 5kW
Heating medium: Coolant / antifreeze
Recommended coolant volume: 10–12 litres
Weight (heater unit): 2.4kg
Dimensions (heater): 220 × 90 × 136mm
Running power consumption: 42W
Start-up power: 122W (12V) / 120W (24V)
Fuel consumption: Up to 0.70 L/h (12V diesel) / Up to 0.62 L/h (24V diesel)
Max operating altitude: 1,000m above sea level
Coolant flow at 0 bar: 1,200 L/h
Coolant flow at 0.18 bar: 800 L/h
Suitable for
Vehicles with engines up to 4.0 litres
Campervans and van conversions
Overland and expedition vehicles
Motorhomes
Boats with liquid heating systems
Control options
Manual, standard, remote control, or modem
Compatible control panel: PU-27
Certifications
Built to ISO 9002 standards
E2 R10 approved
E2 R122 whole vehicle approval
Note: This listing is for the heater unit only. Fitting kits, pipework, installation accessories, and control panels are sold separately.
SKU: AT-F5D-5K-WHK