A principal feature of the Barometric Condenser is that injection water may be discharged through a tail pipe by gravity, without requiring a pump. Another advantage of such condensing equipment is its immunity from flooding, in the event of priming or liquid entrainment. In most plants, the vapor exhaust connections of vacuum apparatus are located at considerable elevation above ground level. The Barometric Condenser here permits shorter exhaust vapor lines and provides two further advantages: a reduction of leakage hazard and lower first cost. Since there are no moving parts, maintenance is low. The condenser requires little space and is readily installed.