Title. We keep ours at 75F, parents do 77F, and in laws 68F. It made me curious what everyone else keeps theirs at?
WHAT THE HELL IS A FARENHEIT 🇪🇺🇪🇺🇪🇺🇪🇺🇪🇺🇪🇺🇪🇺
Not American. What’s a thermostat?
Google search would have answered that.
It’s what controls the furnace or air conditioner in your house. That way you can control how hot or cold your house is.
That depends. For example in a lot of Europe there aren’t any air conditioners in houses, so it only controls heating.
The electronic thing on the wall that controls the temperature of your heater or air conditioner.
older ones are often electrical, but not really electronic. they use a bimetal strip that bends due to changing temperatures, to complete a circuit at the point you set the slider. it’s actually a really fascinatingly simple bit of tech.
Mine growing up used a bit of mercury in a sealed vial mounted to that bimetallic strip.
I don’t! My windows are open all year here in Chicago.
Even last week when we had the 3 days of 100+ heat? When it’s above 85, I have terrible air circulation in my place and need to turn the AC on.
You have your windows open in winter in Chicago? In a single family home your pipes would or rather could freeze in winter. In an apartment depending on how warm the neighbors get their place and heart can radiate through walls that might work. In the summer though Damn that would get warm.
I do! I am on the first floor of the building and get direct sunlight between 4 and 5pm from May to July. This keeps the place cooler in the summer, it’s like a cave. Then in the winter, my unit sits on top of the boiler room for the building so I have heated floors. It’s really not so bad and a feature of my exact unit.
Last week with the 100+ was hard
I have been involved in many of these types of discussions, and I’m convinced that we are not experiencing the same temperatures when we set our thermostats to the same temperature. If I set mine any lower than 77°F, I would freeze to death. But many people here set theirs to below 70°F.
I have a few hypotheses.
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Apparently AC units can really only make the temperature about 20-25°F degrees colder than the outside ambient temperature. It is over 100°F in my area almost every day from June to mid September, so any temperature below about 78°F just means your AC is on 100% of the time. This is removing moisture from the air, making it feel colder.
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My thermostat is right next to my garage door, which is not insulated. This is probably where the majority of heat enters the house. So the thermostat thinks it is warmer than it is. Other people might be in similar or opposite situations and need to set their thermostats to account for that.
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People’s AC units are not actually cooling anywhere near those temperatures. The unit is just on 100% of the time at those temperatures, and they could realistically increase the temperature a great deal and get the same results.
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Humidity.
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Some people’s AC units/thermometers just suck. 65°F on their unit actually gets the space to the same temperature as 75°F on my unit.
This is removing moisture from the air, making it feel colder.
That’s not how humidity works. Higher humidity means that cooler temperatures feel much colder and warmer temperatures feel much warmer. Even the heat index calculation shows this. Just try it out for yourself, or look at the formula. https://www.weather.gov/epz/wxcalc_heatindex
People’s AC units are not actually cooling anywhere near those temperatures. The unit is just on 100% of the time at those temperatures, and they could realistically increase the temperature a great deal and get the same results.
I don’t know why you think this. Maybe you only have a single stage AC or maybe you’ve never actually measured the temp with an extra thermometer, but you can get the ac 40-50°F cooler than outside, both by removing humidity (which decreases the “feels like” temp) but also through actually heat removal from the house. You might just have bad insulation as well.
If you live in a dry climate you can do the opposite. Pump humidity in using a swamp cooler, which places moisture in the air and then immediately causes it to evaporate carrying heat with it in the state change. You’re cooling the air slightly and since moisture exaggerates temperature changes it feels cooler to you.
My thermostat is right next to my garage door, which is not insulated. This is probably where the majority of heat enters the house. So the thermostat thinks it is warmer than it is.
I’ve got an Ecobee thermostat and they sell little temperature sensors that you can place anywhere in your house. You can configure which sensors are used at which time - for example I have a sensor in my bedroom, and configured it to only look at the bedroom temperature overnight. If you select multiple sensors, it averages them.
It’s a decent solution to this problem.
Yeah, those are all good points and certainly factor in. There are objective studies about human comfort preferences used for building design. I expect OPs question is a roundabout way to ultimately ask about comfort preferences.
Studies done on temperature preferences are also biased (like medicine studies or calorie recommendations). Office building studies were based largely on the preferences of white men. Not even accounting for individual preferences someone being in a different “category” (i.e. gender) may also influence at what temperature they are most comfortable.
Number 2 has merit. Here are a few more.
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Most thermostats do require calibration, and nobody has time for that. This has a similar effect to your second point. Proper air flow (or lack thereof) throughout the home is also important.
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Sunlight makes a huge difference. A temperature that feels comfortable at night may not feel comfortable at noon in a home with a lot of natural light. Same as a sunny vs a cloudy day, indoors or outdoors.
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Men and women have drastically different tolerances for comfortable room temperature. In general, non-menopausal women tend to appreciate a slightly warmer room than men. This plays out in office spaces all over the world, with many women running space heaters under their desks.
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Clothing obviously makes a huge difference. Some people prefer to dress for their desired temperature; others prefer to dress for their physical comfort and let the HVAC balance things out accordingly.
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Medical conditions and medications and diet can all drastically affect one’s body heat output. For example, anything that boosts serotonin is likely to make one run hot. Stimulants will constrict blood vessels and make one cold, especially in the extremities. And we all know what alcohol does (dilates blood vessels, allowing more heat to escape the body, lowering one’s body temperature despite actually making them feel warmer). Blood sugar levels make a difference. The list is endless.
But it’s interesting that most of your thought process went into how HVAC systems and humidity work, versus the simple fact that the people themselves are just drastically different (see points 3 through 5).
