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  1. thermal expansion tank

    Plumbing
    Hi - I'm about to replace my 40gallon water heater. I like to try and do things 'right' so i was reading up on the latest water heater stuff, as it's been 10+ yrs since I last replaced one. I've started reading about 'thermal expansion tanks'. I think i sort of understand what they do - i'm...
  2. wall noise from thermal expansion

    Building & Construction
    I am trying to diagnose a metallic creaking/popping noise behind drywall. I recorded 3 occurrences of the noise a the following link: youtu.be/9rIWIkw1Yzk The sound in the video is low so you may need to increase the volume because in reality the sound is as loud as a normal conversation...
  3. Electrical Baseboard Thermal Protection

    Electrical
    Is it possible that over the years (25), the thermal protection switch gets weak and trips constantly? I've noticed this problem since I installed digital thermostats throughout my home. A "Low Power" message appears off and on when the heat ramps up in the evening, this can only be caused by...
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