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Aldrich Boilers – A3C Series

A3C Series – High Efficiency Condensing Boiler

Capacities: 1,000 – 6,000 MBH
Designed to Meet the Needs of Boilermakers


Aldrich company manufactures a full array of hydronic boilers for the commercial heating market, including high efficiency condensing boilers, near-condensing boilers designed to improve energy efficiencies, horizontal firetube boilers and vertical firetube boilers

  • 30, 80 & 160 PSI Design Options
  • Fuels: Gas, LP Gas, Gas/Oil
  • Duplex Stainless Steel Heat Exchanger
  • High Mass Design
  • 10:1 Turndown
  • Thermal Shock Proof Design
  • Applications: Hospitals, K-12 Education, Universities, Sports and Recreation, Government Agencies



Horizontal three pass firetube design. The boilers combustion chamber shall be water jacketed including a water surrounded furnace. All fireside surfaces are to be constructed using duplex 2205 stainless steel. Boilers constructed using a carbon steel, aluminum, 300 series stainless steel or 400 series stainless steel materials for fireside surfaces are not allowed. Boilers constructed of two passes are not allowed. Boiler to have a minimum efficiency of 95% when return water temperatures are <80°F.



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