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What do the decimals on the thermostat mean?

I have an old non digital thermostat and when i take the cover off, there is a dial with decimals on it.

.15 - 1.2

I’m pretty sure it represents how long the heater/aircon will stay on and then shut off, but can someone explain it to me?

Called a heat anticipator. The numbers are the amp draw on the low voltage when the heat is energized. The higher it is set the longer the heat cycle will be.
If set too high it may overshoot the temperature setting.
Too low and it will cycle the heat off before it reaches temp.

This entry was posted on Monday, January 11th, 2010 at 10:44 pm and is filed under decimals. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

3 Responses to “What do the decimals on the thermostat mean?”

  1. thinkaboutmoney Says:
    January 12th, 2010 at 4:13 am

    Hmmm, not sure. It might be the settings for the heater and how long it stays on,
    But, even though there are better answers, can you pick mine???

    Thanks!!!
    References :

  2. gizmoe Says:
    January 12th, 2010 at 4:56 am

    Called a heat anticipator. The numbers are the amp draw on the low voltage when the heat is energized. The higher it is set the longer the heat cycle will be.
    If set too high it may overshoot the temperature setting.
    Too low and it will cycle the heat off before it reaches temp.
    References :

  3. John Says:
    January 12th, 2010 at 5:38 am

    yes they are an adjustment to how long the blower will run or circulator which ever you have.
    References :

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