Energy Kinetics Accel CS

Accel CS incorporates a condensing technology in a combined system. It produces heating & hot water with an exceptional technology, higher efficiency, higher quality and longer life.  It helps lower fuel bills and provides warmth and endless hot water for your home or business. 

The Most Efficient Condensing Boiler

UP to 97% AFUE

Highest Efficiency

Fuel Types: Natural Gas, Propane

Residential and Commercial Use


  • Whisper Quiet
  • Nearly Endless Hot Showers
  • Proudly Made in USA
  • Up to 97% AFUE
  • Natural gas or propane, easy to convert
  • Higher grade stainless steel than other condensing boilers, AL294C condensate collector
  • Convenient wall or floor mount
  • Gas protection alarm included with every system
  • SmartBoost for better comfort
  • Built-in Auto Express Setup, and no second pump is needed, improving efficiency over other condensing boilers.
Accel CS

SmartBoost Comfort


Outdoor temperature reset can leave your home cold when recovering from an overnight setback or whenever you turn up your thermostat.

The SmartBoost technology automatically adjusts to make your home warm and comfortable faster while optimizing condensing operation and efficiency.

Each cycle is optimized for higher comfort and lower fuel bills.

Check Out Other Models

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