alt Hacker NewsYou shouldn't need to change the temperature regardless of those things. My house remains at 68-72F basically all the time. Thermal cycling accelerates aging of materials.
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Isn't the thermal cycling greater outdoor than indoor because of the differences in the outdoor temperature between day and night? So most ordinary materials indoors should be fine with a delta of even 10 Kelvins/10 Celsius/18 F.
All of the material thermal failures I can think of come from localized and more extreme sources: electronics, lightbulbs, washing/drying clothes, washing dishes in a dishwasher. Water below freezing point too, but that's because the temperature fell below a threshold. None of these are from heating or cooling rooms directly with HVAC.
Everyone I know offline keeps their house at a constant temperature year-round, yet apparently it's controversial enough to be a downvoted opinion here? WTF?
How about sleep? Ideal temperature is 18C.
Sounds expensive at the equivalent rate of 38 cents a kilowatt hour that I pay during the day.