It's certainly the case that we are more sensitive to changes in temperature than the absolute temperature, at least within a certain range of temperatures and depending on clothing.
For example a steady 20 degrees can feel just as comfortable as a steady 21, but if the temperature is increasing from 20 to 21 we will feel "hot" while if it is dropping (relatively quickly) from 21 to 20 we will feel "cold" even though we are passing the same half way point in between them. This is because we acclimatise to the conditions through means such as blood vessels near the skin constricting in cold temperatures etc.
The classic example is in winter where the house might be a comfy 20/21 degrees and to a person that has been indoors all day this feels spot on, but someone who has just come in from the freezing cold will inevitably complain about how its far too hot in the house and want to turn the heating down, open windows etc much to the chagrin and annoyance of those already in the house.
It takes the body time to acclimatise to a large change in temperature like that and during that period of time you will feel too hot but that will pass once you have adapted, and you just have to trust that your previously determined comfortable temperature will indeed be comfortable today like it was yesterday once your body has adapted.
The best way to get comfort in a room that a lot of time is spent in like a living room is to find a temperature that is still comfortable after you've sat in it for a long time, and just leave the temperature alone. As long as you have something like the Evohome that is capable of maintaining a very steady oscillation free temperature you will feel comfortable all night long. If you have a system that allows wide swings in temperature as unfortunately a lot of conventional (especially non-TPI) controls do, you will be forever feeling too hot on the upwards swing and too cold on the downwards swing of each temperature cycle, and probably end up manually fiddling with the controls several times a night...
For example a steady 20 degrees can feel just as comfortable as a steady 21, but if the temperature is increasing from 20 to 21 we will feel "hot" while if it is dropping (relatively quickly) from 21 to 20 we will feel "cold" even though we are passing the same half way point in between them. This is because we acclimatise to the conditions through means such as blood vessels near the skin constricting in cold temperatures etc.
The classic example is in winter where the house might be a comfy 20/21 degrees and to a person that has been indoors all day this feels spot on, but someone who has just come in from the freezing cold will inevitably complain about how its far too hot in the house and want to turn the heating down, open windows etc much to the chagrin and annoyance of those already in the house.
It takes the body time to acclimatise to a large change in temperature like that and during that period of time you will feel too hot but that will pass once you have adapted, and you just have to trust that your previously determined comfortable temperature will indeed be comfortable today like it was yesterday once your body has adapted.
The best way to get comfort in a room that a lot of time is spent in like a living room is to find a temperature that is still comfortable after you've sat in it for a long time, and just leave the temperature alone. As long as you have something like the Evohome that is capable of maintaining a very steady oscillation free temperature you will feel comfortable all night long. If you have a system that allows wide swings in temperature as unfortunately a lot of conventional (especially non-TPI) controls do, you will be forever feeling too hot on the upwards swing and too cold on the downwards swing of each temperature cycle, and probably end up manually fiddling with the controls several times a night...
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