non-condensing engine
noncondensing engine

The New York Central tug 16 had a single-cylinder non-condensing engine.

Cowlitz was equipped with two horizontal non-condensing engines, each with a 14-inch bore and a 6-foot stroke, producing 390 estimated horsepower.

The station could pump 55 million gallons per day (250 Mld), and a backup non-condensing engine was provided in case of failure of any of the main engines.

An example of an early Saxon engine was one built in the 1860s for a Manchester confectionery firm which was a horizontal single cylinder non-condensing engine, 60 ihp, with a Meyer variable cut-off slide valve.