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I will be ready to switch furnace from winter to summer tomorrow. It's a dual system/oil switches over at 32. What should it read on my honeywell thermostat when i switch it over. Help appreciated.

  • Are you referring to a heat pump with oil back up? – Joe Fala Mar 9 at 15:27
  • yes. how do i do this – Debrah A Utt Mar 19 at 14:03
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You are switching from heat to cool at 32 degrees? If so, I assume celsius. Most thermostats won't care what they say. It is what temp you are comfortable at. Your system won't care either. However, if you just heated the house and the burners are warm, or even the heat exchanger, then you might want to wait to allow it to naturally cool, before flipping to cool. Just to keep things from going from one temp extreme to another so nothing cracks.

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