Product Information

Ideal for new and replacement/retrofit projects, ARES Pro boilers can be directly connected to the existing system.

With a compact footprint and no need for a hydraulic separator/plate heat exchanger or low loss header, Ares Pro boilers are easy and economical to install. Features such as a high water content design for fewer burner switch on/off cycles further improve overall efficiency.


Detailed Information

The ARES Pro range of high water content condensing boilers have been designed and manufactured to meet the needs of new and replacement/retrofit applications, with the added advantage of being tolerant to older heating systems.

Featuring high performance components including a stainless steel heat exchanger, ARES Pro boilers offer many advantages to specifiers and building occupiers alike. Delivering superior and reliable functionality this powerful workhorse is designed to aid quick installation and ensure long term performance and cost efficiency.


  • Seven models available in range
  • Outputs ranging from 150-600kW


  • High water content design reducing burner switch on/off cycles and improving seasonal efficiency
  • Stainless steel heat exchanger for maximum combustion performance and safety
  • Financial savings as pump and hydraulic separator/plate heat exchanger not required
  • Low resistance waterways


  • Less installation space needed due to compact footprint
  • Direct connection to the system, not necessary to use headers
  • Option to use existing pump to minimise install work


  • Easy access combustion chamber with pneumatic lift up burner assembly
  • Retractable step, supplied as standard for the 348, 400, 500 and 600 models (optional for 150 to 300 models)
  • Integrated HSCP (Heating System Control Panel) manages programming and settings
  • HSCP preprogrammed to manage 1 direct heating zone and 1 DHW cylinder
  • Capable of managing up to 8 boilers in cascade (with optional cascade regulator)


  • Heat exchanger constructed in 316 stainless steel
  • Easy to maintain vertical tube burner assembly
  • Patented pipes in stainless steel, with multi-fin inserts, tilted to improve flow of condensate
  • Low NOx metallic multi-fibre cylindrical burner
  • Double ignition electrodes to ensure smooth and safer operation
  • Premix system with pneumatic control of the combustion ratio
  • Flue non-return valve (clapet) fitted to fan outlet


  • The stainless steel tube bundle is immersed directly into the system water
  • System return pipe is located diagonally to the flow pipe, ensuring maximum efficiency
  • Large hydraulic manifolds to obtain maximum water circulation and low head losses
  • No return temperature limit for a range of system temperatures with adjustable temperature difference

Flue pipes are positioned in the vertical tube bundle tilted at 3° to improve

  • Condensate drain and to avoid acidic deposit
  • Gravity self-cleaning of exchange surfaces
  • Air removal operation
  • High thermal conductivity
  • Wide exchange surface
  • Easy access burner and heat exchanger cleaning



Products in this range



High output modular condensing boiler range providing a flexible and efficient commercial heating solution.

View Product
ProTec Plus system boilers

ProTec Plus system boilers

Designed for larger output requirements to provide heating only for sealed central heating and open systems.

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