• 23 52 39.13 - Scotch Marine Boilers
• 23 52 16 - Condensing Boilers
• 23 52 13 - Electric Boilers
• 42 11 00 - Process Boilers
• 23 52 00 - Heating Boilers
• 23 52 33.13 - Finned Water-Tube Boilers
• 23 52 16.13 - Stainless-Steel Condensing Boilers
• 23 52 16.16 - Aluminum Condensing Boilers
• 42 11 19 - High-Pressure Process Boilers
• 23 52 19 - Pulse Combustion Boilers
• 23 52 39.16 - Steel Fire-Tube Boilers
• 23 52 33.19 - Copper Water-Tube Boilers
• 23 52 23 - Cast-Iron Boilers
• 46 78 47 - Waste Heat Recovery Boilers

• Electro Industries, Inc. has an UPDATED Spec for Heating Boilers and Accessories
  2016-03-31 Company
• Electro Industries has added 5 NEW CAD Details for their Heating Boilers and Accessories
  2013-05-28 Company
• Electro Industries has 2 NEW Specs for Heating Boilers and Accessories and Electric Make-Up Air and Duct Boost Heaters
  2012-09-21 Company