Over the last few days we have kept it at 75 which seems comfortable. In the summer we keep the A/C on 77 day and 78 at night.
This morning it was 71 when I woke up and I turned it on emergency heat for about 20 minutes then back to the heat pump set on 75. That warmed the house up toasty and I haven't heard the furnace on all day.
It was just 37 degrees outside this morning.
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