The fitting of an engine pre-heater does not eliminate the need for antifreeze. Damage may be caused to the engine if the correct mixture of antifreeze is not present.
Engines are more difficult to start when the ambient temperature is very low. In geographical areas where temperatures below -10°C are experienced frequently, it is advisable to fit an engine pre-heater. The pre-heater has an insulated connector at the front of the vehicle, which is connected to a mains supply using a suitable extension cable. The pre-heater can remain in use overnight, if required. Typically, an engine pre-heater uses between 0.4 and 1 kWh.
For further information, consult a retailer/authorised repairer.