It’s been getting colder where I live. I leave the heat on the same temperature all day and evening. However, as soon as the sun goes down, the house feels cooler. Why is this?
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This varies a lot with the house and thermostat placement.
My thermostat is in a central hallway where it’s shaded from any sun, but several rooms have large windows. Those rooms are warmed up by the sun during the day but the A/C doesn’t kick on because thebthermostat isn’t in one of those warm spots. At night, those rooms cool off a lot with the sun effect gone even though the thermostat is on the same setting.
Similar thing happens in the winter. The outlying rooms with big windows lose a lot of heat through them, but the thermostat is in the middle of the house farthest from those changes. So those rooms get a little help from the sun during the day but get chillier at night.
You kinda have to think through those factors for your own house but hopefully the example makes sense. A reasonably accurate thermometer will let you walk around the house and see differences like that if you’re really curious.
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