Tankless Gas Water Heater recirculating pump question?

Discussion in 'Tankless Water Heater Forum' started by Alan Kish, Apr 5, 2021.

  1. Alan Kish

    Alan Kish New Member

    Apr 4, 2021
    I am looking at the Rinnai Tankless gas model RU199in. I cannot tell if it comes with a recirculating pump or not. Does anyone know? Also what exactly does this pump do? This is the Rinnai model that I am looking at. Also I have ICF walls in my basement (foam filled with cement). Could this unit mount to this or do it need wood to mount to? It says the unit is 65lbs.
    Thanks in advance.....

    Last edited by a moderator: Apr 5, 2021
  2. fitter30

    fitter30 Well-Known Member

    Feb 2, 2020
    Retired service tech
    Peace valley missouri
    External pump
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