Tru-O2 20:1 without all the excess air

Tru-O2 20:1 Without all the Excess Air

Available on the Arctic 3500-6000MBH Condensing Boilers, Tru-O2 delivers reliable turndown without the gimmicks.

  • Constant O2 at highest and lowest fire setting
  • Consistent dew point throughout turndown range
  • Independent ignition position
  • 9 point curve for adjustment

Download the Brochure or Contact Us to learn more.

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