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Wax motor

525 points · 107 comments · mhb

  1. limaoscarjuliet · · focus · HN ↗
    Wikipedia page has a small error. It shows an actuator (i.e. wax motor) described as thermostatic radiator valve <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Wax_motor#&#x2F;media&#x2F;File:Thermische_Stellantriebe,_Thermische_Antriebe,_Fussbodenheizung,_thermal_actuator,_actuateur_thermique.jpg" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Wax_motor#&#x2F;media&#x2F;File:Thermisc...

    These are two separate things: thermostat will close and open based on surrounding temp., the actuator on the other hand opens and closes based on energizing a heating element that is driven by a separate thermostat.

    Wax motors are pretty cool things. They rarely fail and do their job even in damp environments. I take care of my better half&#x27;s hotel with approx 100 of these installed and we replace one of these once every couple of years.

    1. jansan · · focus · HN ↗
      &gt; They rarely fail and do their job even in damp environments. I take care of my better half&#x27;s hotel with approx 100 of these installed and we replace one of these once every couple of years.

      I had to replace about half of them within the first ten years of usage in our floor heating. It may have been a bad batch, but I would definitely not claim that the rarely fail. My car did not fail once during that time.

      1. IAmBroom · · focus · HN ↗
        But I&#x27;m betting you performed maintenance on your car in that period.
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