AD_Pickup,

The name "Deluxe Heater" was the name of different style heaters sold by Chevrolet between 1947-1955. That's why I asked for the year of the two trucks (even though any heater from any year might have found their ways into the two trucks over the years).

Also, GM might have used different names for the same heater in different documents and in parts lists in the same year. And, GMC and Chevrolet might have used different names for the same style of heater in the same year.

That's why a photo (or two) is always worth many words (and mistaken identities).

Tim

Here is the 1947 Heater & Defroster - De Luxe (it has two motors)

Here is the Fresh Air Ventilator, Heater & Defroster

In 1950, the name "Fresh Air" was not even used.

In 1954, the name "Air Flow" was used instead of "Fresh Air".

IN 1954, GMC used the word "AIRFLOW" for what I think is the heater in question.