In the early 50s, Westinghouse dishwashers has the temp boost that could lengthen the wash portion of the cycle to an hour because there was no prerinse before the main wash to help heat up the dishes. It was very necessary, but the long wash did not make for excellent cleaning because of the Bakelite impeller and they could not dispose of the heavy food soil the the GE models could with the powerful GE pump. The WH dws just had a small self-powered drain pump with a little strainer to catch chunks. I am not certain if the 1954 machine like Robert had with the metal impeller had the temp boost hold built into the timer like the earlier models when the timer was at the bottom of the front panel, but it washed better than the Bakelite impeller machines. In the late 50s/early 60s impeller machines, it became an option on the TOL models. I think that once they finally figured out how to build a detergent dispenser and could have a prerinse or prewash, they eliminated the heating delay in the wash cycle. My flat front roll out with the small dial had a detergent dispenser with compartments for one or two washes and was the last of the impeller machines after the wash arm machines were introduced.
I remember that we looked at this model when we were looking at dishwashers and only this TOL model had the flammable console and the wash water temp booster switch. Once my parents found out that it did not have a prewash, they lost all interest and left Davison's (The Davison-Paxon Company for Atlanta old timers).
