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  1. K

    Installing external expansion tank on a tankless water heater

    Good evening. I posted previously about my coaire tankless water heater issues and these forums were a great help. I had a pressure reducing valve start leaking/losing pressure. With the help of these great forums we replaced the PRV and added an inline pressure gauge to help monitor the...
  2. K

    Expansion tank pressure

    I have a Coaire Tankless water heater. It has a built in expansion tank. What should the pressure be inside of this tank? Thanks.
  3. K

    Coaire/Quietside tank-less water heater problems.

    This is my first post. My name is Kyle. I have a Coaire natural gas tank-less water heater that is suppose to still be under warranty. Unfortunately the company shut down and parts are no longer available. The issue i'm having is no hot water or heat. Well, I have hot water SOMETIMES. If I...
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