Pre-Start Engine Heater AUTOTERM FLOW 5D-DIESEL 12V


Pre-start engine coolant heaters work independently from the engine. They heat up the engine coolant to provide an easy start at low temperatures. At the same time, they supply hot air to the passenger cabin/compartment keeping it warm and dry.

Heaters AUTOTERM FLOW 5D-Diesel; 12V have programmable start and stop control and automatically maintain pre-set engine and cabin temperature.

Refer to Operation Manual for installation and operation procedures.
Wireless control is available via a smartphone app. Modem installation is required (sold separately).
Refer to Instruction Manual.

Download AUTOTERM FLOW 5D-Diesel-PU27; 12v brochure

Download AUTOTERM FLOW 5D-gasoline-PU27; 12v brochure

* Gasoline heaters Flow 5B-GASOLINE are out of stock *


Technical details:

12 V
Heat Output; kW (BTU): 5.0 (17,000)
Fuel: Diesel
Fuel Consumption; l/h (gal/h): 0.62 (0.16)
Nominal Supply Voltage; V: 12
Operating Voltage; V: 9.5…16
Power Consumption; W (A): 7.30 (6.0)
Coolant: Antifreeze
Weight (with kit); KG: 8.0

Additional information

Weight 10.0 kg
Dimensions 55 × 39 × 15 cm



PU-27, PU-28

Manual and Certificates

Operation Manual (English)

Download Installation Manual Autoterm 5S-EN V02.2022

Download Repair Manual Autoterm 5S-EN-V11.2022

Download Spare Parts and BOM Autoterm 5S EN V10.2022

Operation Manual for Control Panel PU-27

Operation Manual for Control Panel PU-28

Mode d’emploi (Français)

Manuel d’utilisation Panneau de commande PU-27


The certificates will be updated soon, please check back soon.


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