[PA Engineer]

I agree with the heat and hot water, but power cars and trucks will require a conversion process for useful energy. If they can come up with more efficient and economical thermoelectric generators, then there will be more far reaching applications, including self-sustaining reactions.

[The Cajun]

Hot water is nice, but can it produce steam at high enough quantities and pressures.
That would be nicer and a lot easier to *turn* something.
Just hot water is probably not going to be easily scalable and compact to *turn* something.

[Wonder Warthog]

"I agree with the heat and hot water, but power cars and trucks will require a conversion process for useful energy. If they can come up with more efficient and economical thermoelectric generators, then there will be more far reaching applications, including self-sustaining reactions."

A "conversion process" already exists. It's called "steam", and was originally "a contendah" for automotive power.

For a time, the Stanley Steamer was actually superior in reliability and performance to ICE driven autos. The thing that killed the steam car was the fact that it took too long to "crank up". Given today's capability for automatic controls, that shouldn't be a problem....just keep the E-Cat "ticking over" at a low level to keep the batteries charged (still need electricity for the various electronics.

Thermoelectric conversion not required. Nice to have, and probably more efficient, but not necessary.