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Gear Differential. Rinnai Manual.

nibs Member Posts: 500
The manual for our Rinnai E50C shows on Page 50 under Parameters
"full under floor heating: T max. supply 122°F; K factor heating curve 1.0; gradient 6°F/min; gear differential 6°F"
Am unable to find any other reference to Gear Differential in any other Rinnai manual or Rinnai training manual.
Working out the settings we want for the boiler when we start it up on our return home and dunno about this on.
Call me an idiot if it is a simple acronym, but have not figured it out.
Thanks in advance.


  • Zman
    Zman Member Posts: 7,495
    edited January 2019
    I think that is a Rinnia made up word.
    It would be way easier if they would just graph the curve.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • nibs
    nibs Member Posts: 500
    I think you are right, or it is a typo. Their literature is kinda arcane, eg, they use 'supply water' and 'flow water' interchangeably which for a newbie is a bit of a challenge.