Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Setback Thermostats

Has anyone found reliable information on the most efficient way to use a setback thermostat? Even the manufacturers give very little information on the ratio between on and off cycles, the number of degrees setback that is most efficient, and how all of this might be related to outside temperature.



  • It varies by location

    and house, system size, insulation, and weather.

    Without any info to compare, no info would be even close to accurate about how much fuel would be usedl or saved.

    I'd compare it to predicting how much fuel would be used to travel across the country.

    ....without knowing how far it is, what fuel it is, who is driving, and if you were using a car, plane, bus, or train.

    Your mileage may vary.

  • Glenn Harrison
    Glenn Harrison Member Posts: 405
    Might I suggest...

    that you send your question to ([email protected])

    Bill should be able to get the info that Honeywell has for using their thermostats.

    Glenn Harrison, Residential Service Tech

    Althoff Industries Inc. Mechanical and Electrical Services

    Crystal Lake, Illinois

    Althoff Industries website
  • BillW@honeywell
    BillW@honeywell Member Posts: 1,099
    setback stats

    Honeywell's new electronic setback stats all feature +- 1 degree accuracy. They come in a variety of price and feature ranges, from the basic T8112D to the top of the line T8600 and PC8900. If you can tell me a bit more about what kind of system you have, I'll get back to you with specifics.
  • BillW@honeywell
    BillW@honeywell Member Posts: 1,099

    Thanks, Glenn.
  • Glenn Harrison
    Glenn Harrison Member Posts: 405
    Any time Bill. (nm)

This discussion has been closed.