28HE Series

Power-burner Boilers, fired with Oil, Gas or Both


Smith Cast Iron Boilers has taken the field-proven design of 28A series commercial boilers to even higher levels of performance and efficiency with 28HE series, high-efficiency boilers. 28HE series boilers are designed to provide the highest combustion and thermal efficiencies possible with forced draft firing.

Smith 28HE series cast iron boilers are ideal in commercial applications for either hot water or steam heating systems. 28HE series boilers are available in fifteen sizes from 900 to 4,270 MBH with high efficiencies.

 

 

28A Series Boiler Features

  • Rugged cast iron heat exchanger sections with integral flue collector
  • Heat transfer rods and extra thick (3") insulated jacket for increased performance
  • High temperature flexible graphite port connectors provide the installation ease of a gasket and long life of a push nipple
  • Graphite port connectors and ceramic fiber flue gas rope seals reduce assembly time and require no special assembly tools
  • Short, individual draw rods simplify assembly and reduce stress
  • A front and rear observation ports to visually inspect the flame and combustion chamber
  • Easy-to-remove, front access covers and side mounted cover plates for quick and easy boiler cleaning
  • Side mounted tankless coil domestic water heaters (when provided) for easy inspection and/or replacement
  • Cast iron smoke hood with integral fail-safe breeching damper that is easily adjusted and locked into position
  • Obround shaped upper port for improved internal circulation and dry steam
  • Factory packaged or knocked down for field assembly
  • Choice of Beckett, Carlin, Powerflame and Webster power burners with a wide array of controls (when provided

Please Note:

The Roberts Mechanical Equipment Company nor its respective vendors shall be responsible for improper application of this equipment. Prior to downloading drawings or specifications, it is the responsibility of the specifying engineer or the installing contractor to completely review and understand the installation manual for each individual product (offered here). In addition, many of the supplied drawings are available in a .dwg or .dwf format for engineers to easily incorporate into their drawings. Simply email us your request and we will forward you the appropriate information. Question or concerns should be directed to RME via email: info@robertsmech.com

 

PRODUCT LITERATURE

 

Series 28HE color brochure (1.1MB)

 

STANDARD EQUIPMENT

 

All Boilers

  • Cast iron wet-base sections rated for 80 psi (water) and 15 psi (steam)
  • ASME safety relief valve
  • Hi-limit manual reset control
  • Operating temperature or pressure control
  • Burner mounting plate with insulation block
  • Insulated metal jacket, steel floor rails and flue brush

Water Boilers

  • Temperature and pressure gauge


Steam Boilers

 

  • Steam pressure gauge
  • Low water cut-out with water gauge glass

 

OPTIONAL EQUIPMENT

  • Tankless coil domestic water heaters
  • CSD-l, FM, or lRI approved fuel trains
  • Inspection tappings, return yoke and barometric dampers