The Apex condensing stainless steel gas-fired hot water boilers offer a small footprint in a sleek jacket design, compact with next generation watertube technology and an advanced control system that has simple to use features to optimize performance. Ideal for any installation with its lightweight design and can fit through a standard doorway. Boilers can also be two-unit stackable with supplied mounting brackets.

LOWEST PRESSURE DROP IN CLASS

  • Up to 97% Thermal Efficiency
  • Next Generation Watertube Technology
  • Up to 50% Smaller Pumps
  • Reduced Electrical Consumption
  • Increased Venting Lengths
  • Full Modulation
  • 5:1 Burner Turndown
  • Concert Boiler Control with Advanced Touchscreen Display
  • BMS Compatible
  • Stackable Design; Eliminates Costly Stands
  • Eco Propel Variable Speed Pumping


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Apex Condensing Boiler

Apex Condensing (APX) - Ultra High Efficiency Hot Water Boilers
Apex Condensing Boiler

Apex Condensing (APX) - Ultra High Efficiency Hot Water Boilers
Apex Condensing Boiler

Apex Condensing (APX) - Ultra High Efficiency Hot Water Boilers
Apex Condensing Boiler

Apex Condensing (APX) - Ultra High Efficiency Hot Water Boilers
Apex Condensing Boiler

Apex Condensing (APX) - Ultra High Efficiency Hot Water Boilers
Input: BTUH N/A 399,000 Btu/hr N/A 500,000 Btu/hr N/A 625,000 Btu/hr N/A 725,000 Btu/hr N/A 800,000 Btu/hr
Output: BTUH N/A 375,000 Btu/hr N/A 485,000 Btu/hr N/A 594,000 Btu/hr N/A 689,000 Btu/hr N/A 760,000 Btu/hr
Boiler N/A 11.3 bhp N/A 14.5 bhp N/A 17.7 bhp N/A 20.6 bhp N/A 22.7 bhp
Fuel N/A Natural Gas Propane
Approvals N/A Intertek ETL Listed C US
ASME Design Data N/A Max. 160 PSIG & 210ºF
Electrical Supply Options N/A 120v/1ph/60hz - <7 Amps N/A 120v/1ph/60hz - <6 Amps N/A 120v/1ph/60hz - < 8 Amps N/A 120v/1ph/60hz - < 8 Amps N/A 120v/1ph/60hz - <8 Amps
Inlet Gas Pressure (LP) N/A 14" W.C. Max. 8" W.C. Min.
Inlet Gas Pressure (NG) N/A 14" W.C. Max. 4" W.C. Min.
MBH Input N/A 399 MBtu/hour N/A 500 MBtu/hour N/A 625 MBtu/hour N/A 725 MBtu/hour N/A 800 MBtu/hour
MBH Gross Output N/A 375 MBtu/hour N/A 485 MBtu/hour N/A 594 MBtu/hour N/A 689 MBtu/hour N/A 760 MBtu/hour
Net Ratings, Water MBH N/A 326 MBtu/hour N/A 422 MBtu/hour N/A 517 MBtu/hour N/A 599 MBtu/hour N/A 661 MBtu/hour
Thermal Efficiency N/A 94.1 % N/A 97 % N/A 95 % N/A 95 % N/A 95 %
Shipping Weight N/A 316 Pound N/A 368 Pound N/A 458 Pound N/A 458 Pound N/A 500 Pound