Characterization of the U.S. Industrial Commercial Boiler Population

industry utilizing large black liquor-fueled boilers and the chemical industry using
somewhat smaller natural gas and by-product fueled boilers.
The West South Central, with its chemicals and refining industries, has 4,800 boilers and
384,000 MMBtu/hr of capacity, which is the most of any region. The chemical industry
accounts for more than half of the boiler units and capacity in the West South Central.
The refining industry, which is characterized by very large boilers, accounts for almost
one-quarter of the boiler capacity in the region.
The East North Central, South Atlantic and West South Central Regions include over 60
percent of total industrial boiler capacity.
2.5 Nonmanufacturing Boilers
The nonmanufacturing boiler inventory is not a primary focus of this report as it is
smaller than the other sectors and energy-related data are less complete. The
nonmanufacturing segment of the industrial sector includes agriculture, mining and
construction. On an energy basis, this segment consumes about 11 percent of all
industrial energy, much of which is vehicle fuel, suggesting that boiler fuel consumption
is a similarly small fraction of manufacturing boiler fuel consumption.
EEA estimates the nonmanufacturing boiler inventory to be approximately 16,000 units
with an aggregate capacity of approximately 260,000 MMBtu/hr or about 14 percent of
the manufacturing boiler capacity.
2-8 Energy and Environmental Analysis, Inc.