| 摘要 |
An engine pre-heater and heater assembly comprising a housing having a passa ge extending therethrough for passage of coolant through the pre-heater. The housing provides at least one opening defined therein separate from the passage, and an electric heating element is inserted therein, the heating element projecting into the passage whereby the heating element is in direct contact with the coolant to heat it. The heating element is supplied with electrical powe r from a power source for enabling the heating element to heat the coolant. In an alternative embodiment, an air blower directs heat generated by the heated coolant, or by air heated in the passage (dry heat), to an area external to the heater assembly.
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