ABS 1500-4000

The ABSOLUTE “ABS SERIES” utilizes a durable sectional cast aluminum heat exchanger engineered and designed in Europe. The cast aluminum provides a robust and lightweight corrosion resistant heat exchanger which allows a high efficiency unit with a small foot print. The ABSOLUTE “ABS SERIES” heat exchanger is designed with large water ways, reducing overall pressure drop through the boiler.  The ABSOLUTE “ABS SERIES” heat exchanger carries a 10 year non-prorated warranty.


  • Fully modulating: 10:1 turndown ratio
  • Factory fired and ASME pressure tested
  • Honeywell Sola Boiler Control System
  • Honeywell S7999D 1006 Large 7″ high definition color LCD touchscreen
  • Up to Eight boiler cascade system control
  • ASME MAWP 80 PSI heat exchanger for models 750, 900, and 1050 MBH.
  • ASME MAWP 160 PSI heat exchanger for models 1500 to 4000 MBH.
  • Caster wheels for easy mobility
  • Cat II or IV Venting
  • Variable flow capability
  • Sealed combustion option
  • 10 year warranty
  • 3-wire RS-485 ModBus™ protocol
  • Very quiet at less than 60 dBA
  • Low natural gas pressure requirements, 3.5” to 14” WC

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