Most common issues with cold water

Discussion in 'Tankless Water Heater Forum' started by plumber69, Jan 13, 2021.

  1. plumber69

    plumber69 In the Trades

    Jun 20, 2014
    Prince Rupert, British Columbia
    What are the most common issues with cold water or goes cold
  2. breplum

    breplum Member

    Oct 2, 2004
    Plumbing and heating contractor
    San Francisco Bay Area
    Check valves and flow sensors from my experience.
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  4. fitter30

    fitter30 Well-Known Member

    Feb 2, 2020
    Retired service tech
    Peace valley missouri
    Condensing water heater have to be designed for gpm and entering water temperature or else most of the time you will be disappointed.
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