#122 Holly District Heating System
1877
Site of the first US district heating steam-heating system
As a means of avoiding the basic inefficiency of heating buildings with individual small boilers, Birdsill Holly invented the "district" steam-heating system. Its basis was a large central boiler plant that furnished steam under moderate pressure to a group of buildings in a surrounding district through a loop of supply and return mains, heavily insulated to reduce heat loss. Each customer was charged for the amount of steam consumed, determined by metering the water of condensation. The concept was highly successful. Before the end of the century a number of district heating companies had been formed, principally in large cities.
Holly's Boiler Plant. Image source Alexis Madrigal
Landmark Location
Erie Canal Museum
Lockport, NY 14094
Plaque location, if specific
Outside small exhibit at locks
Visiting Info
Regular hours, May-Oct, during canal operating hours
Ceremony Notes
1987