We live in Spokane, WA, a high-desert climate. We don't need a programmable thermostat, but we do need one to keep an constant ambient temperature range. This may mean A/C during the day, and heat at night. We have a heat pump. What feature on a thermostat would allow us to automatically switch between heating and cooling?

  • I live in a similar climate (Pasco) and I like programable thermostat. If you don't mind having to program it we turn down the A/C to save power when no one is home during the day and also keep it a little cooler at night. However, during the winter the heat pump tends to work better when we keep a constant temperature. – s0rce Nov 21 '14 at 18:18

The feature you want is referred to 'Auto Changeover". But this feature is usually only on the higher end programmable thermostats now.

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    A quick search resulted in several in the ~$50 and under range with auto changeover. The cheapest I found was $35. I'd hardly call that high end, since the Nest brand can run $250. – Doresoom Sep 19 '14 at 20:06
  • I'm thinking what is available in stores. Should have considered options online. – diceless Sep 22 '14 at 15:59

If you actually need heat at night and AC during the day, that means that your house's level of insulation is so poor that it's really worth adding some.

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