How can the aircon be at the same temperature for both heating/cooling modes and feel different?
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Air conditioning (cooling) also dehumidifies the air.
Heating systems don’t have much of an impact on humidity as far as I’m aware, other than that hot air can hold more moisture than cold air.
It’s also possible that the outside environment is impacting your perception of temperature. If it’s cold outside, room temperature feels warm. If it’s hot outside, room temperature feels cool.
I’ve always found that it has to do more with what my feet are feeling.
In the winter, my thermostat at shoulder height registers 67F, but the floor is at 64F. My feet feel this and don’t feel warm.
In the summer, the thermostat is also measured at a certain point on an inner wall, but heat is leaking in through the outer walls where it feels warmer. Also humidity is higher in summer, so the same 67F feels warmer even though it is the same temp.
I’ve always found that it has to do more with what my feet are feeling.
In the winter, my thermostat at shoulder height registers 67F, but the floor is at 64F. My feet feel this and don’t feel warm.
In the summer, the thermostat is also measured at a certain point on an inner wall, but heat is leaking in through the outer walls where it feels warmer. Also humidity is higher in summer, so the same 67F feels warmer even though it is the same temp.
Air conditioning (cooling) also dehumidifies the air.
Heating systems don’t have much of an impact on humidity as far as I’m aware, other than that hot air can hold more moisture than cold air.
It’s also possible that the outside environment is impacting your perception of temperature. If it’s cold outside, room temperature feels warm. If it’s hot outside, room temperature feels cool.
When heating or cooling the set temperature is the one the unit is aiming to hit.
If you are trying to warm a room to a set temperature, you could just blow out air at the desired temperature and slowly warm the room, but it will be quicker and more efficient to blow out air at a much warmer temperature – as this spreads out and mixes with the ambient air the heat will distribute out (so the whole room doesn’t suddenly hit the temperature of air the unit is outputting, it will gradually increase), and then as the room approaches the target temperature the unit can reduce its output.
The same happens in cooling – the unit will output air at a far lower temperature than the desired target to more quickly reach the final temperature, then throttle back to a setting that can maintain that.
The end result is that if you are sitting directly under the unit, you get blasted with hot and cold, but for those outwith the blast zone they will experience a quicker acting and more efficient unit.
When heating or cooling the set temperature is the one the unit is aiming to hit.
If you are trying to warm a room to a set temperature, you could just blow out air at the desired temperature and slowly warm the room, but it will be quicker and more efficient to blow out air at a much warmer temperature – as this spreads out and mixes with the ambient air the heat will distribute out (so the whole room doesn’t suddenly hit the temperature of air the unit is outputting, it will gradually increase), and then as the room approaches the target temperature the unit can reduce its output.
The same happens in cooling – the unit will output air at a far lower temperature than the desired target to more quickly reach the final temperature, then throttle back to a setting that can maintain that.
The end result is that if you are sitting directly under the unit, you get blasted with hot and cold, but for those outwith the blast zone they will experience a quicker acting and more efficient unit.
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