Tonikaku Kawaii - Vol. 8 Ch. 78 - The hot days continue
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26 degree celcius is hot tho. I always set mine at 16 or 18
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i never use a aircon,i use vent much better to sleep!
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18? What? We here been setting it on 16.
A little explanation for people who don't know how aircon work:
They have a cold mode, and heat mode.
When in cold mode, 26° means it lets out wind cold enough to make the ambient temperature 26°. So being near the air con is actually rather cold. (and that's why the recommended temp is 28° to avoid big temp difference)
When in heat mode, 26° means it lets out wind hot enough to make the ambient temperature 26°. So being near the air con is actually rather hot during winter. (and that's why it's recommended to set it to 22° maximum to avoid big temp difference)
I learnt that myself when leaving in Japan and was actually surprised by how cold 26 (and even 28 when near the aircon) is!
Hope it helps people understand the chapter better.
They have a cold mode, and heat mode.
When in cold mode, 26° means it lets out wind cold enough to make the ambient temperature 26°. So being near the air con is actually rather cold. (and that's why the recommended temp is 28° to avoid big temp difference)
When in heat mode, 26° means it lets out wind hot enough to make the ambient temperature 26°. So being near the air con is actually rather hot during winter. (and that's why it's recommended to set it to 22° maximum to avoid big temp difference)
I learnt that myself when leaving in Japan and was actually surprised by how cold 26 (and even 28 when near the aircon) is!
Hope it helps people understand the chapter better.
The reason why 26 degrees temperature setting feels cold to them is because of a few quirks in the setup of the room, the aircon, and their sleeping position.
First, the house. A Japanese house doesn't have ventilation channels or grates in the ceiling. Hot air has no way to get out from the top. Additionally, if you have an aircon installed, Japanese law requires you to have good insulation and sealing in the room for energy saving. You're supposed to put in effort to make sure your aircon really cools only your room and not the garden outside. Replace the paper sliding doors with glass and insulate the walls.
Next, a ceiling aircon unit has its thermostat on the unit itself and blows cold air downward. So when it's set to 26 degrees, the part of the room that the thermostat is reading as 26 degrees is the area near the ceiling where it's located. This also happens to be where the hottest air in the room can be found, because hot air rises up and the ceiling is basically closed up, preventing circulation outwards. So the thermostat keeps telling the aircon unit to pump more and more cold air downwards while waiting for the hot top layer to cool down to the target temperature. Thanks to this quirk, the air below the stagnant top layer will be much colder than 26 degrees in the first hour or so before convection evens out and stabilizes the temperature in the room. Near the floor temperature can drop to 18 degrees or lower.
Finally, they sleep on the floor, where the coldest air is. The aircon may be set at 26, but down there they're feeling 18.
First, the house. A Japanese house doesn't have ventilation channels or grates in the ceiling. Hot air has no way to get out from the top. Additionally, if you have an aircon installed, Japanese law requires you to have good insulation and sealing in the room for energy saving. You're supposed to put in effort to make sure your aircon really cools only your room and not the garden outside. Replace the paper sliding doors with glass and insulate the walls.
Next, a ceiling aircon unit has its thermostat on the unit itself and blows cold air downward. So when it's set to 26 degrees, the part of the room that the thermostat is reading as 26 degrees is the area near the ceiling where it's located. This also happens to be where the hottest air in the room can be found, because hot air rises up and the ceiling is basically closed up, preventing circulation outwards. So the thermostat keeps telling the aircon unit to pump more and more cold air downwards while waiting for the hot top layer to cool down to the target temperature. Thanks to this quirk, the air below the stagnant top layer will be much colder than 26 degrees in the first hour or so before convection evens out and stabilizes the temperature in the room. Near the floor temperature can drop to 18 degrees or lower.
Finally, they sleep on the floor, where the coldest air is. The aircon may be set at 26, but down there they're feeling 18.
MD@Home
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People living at different latitudes have different preferences when it comes to ideal room temperature. For me in Eastern Europe, 26 degrees Celsius is great during the summer, but people further north will prefer lower temperatures and those to the south will rather have higher ones.
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Good gods, I could never sleep well at 26c, I'd have to find a way to set things down to 15c.
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Am I only one in the earth sleep peaceful with 25c ? Or because I living South east Asia ?
And it good save electric bill too
And it good save electric bill too
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