.
In: Other
You don’t sense ambient temperature, you sense the rate at which heat escapes or enters your body, which is done in 3 ways:
* Convection: When a gas or liquid flows across your skin, like a cool breeze
* Conduction: When something is directly placed on your skin, think of touching your hot steering wheel
* Radiation: When infrared radiation travels space and heats up your skin. Think standing outside on a sunny day when it’s 80°F outside, and you still feel warm
When the AC is on full blast, blowing at you, it’s carrying heat away from you through convection; the things inside your house are cooled down to 77°, so it radiates very little heat.
Air conditioning reduces the humidity, so the temperature of the air being blown out feels much colder than the thermostat will show.
Air from a good AC is 20 degrees colder than the rest of the air. Strong ACs can be 30 degrees. So if your AC is setup so it blow “hard” and you get a lot of the air directly off the coils….you can be feeling ~50 degree air.
I had a unit that would blow 49 degrees out of the vents on a 100 degree day. The room may have been 75, but if you were getting hit by the air from the vent it was freaking cold.
In order to cool your house to 77F with the airconditioner, the temperature of the air coming out the vent will be 15 to 20F lower than the temperature it is cooling to. There are air currents in your 77F house that are 57F, which causes you to feel cold when they hit you.
Could be a problem with your thyroid – check out underactive thyroid symptoms online and consider talking to your doctor
Check behind the thermostat for air infiltration. Recently found out why the 65F air from the AC cooled the room way below the 72F setting while the thermostat read 79F. It was mounted on an interior wall with attic access above. The hole for wires behind the thermostat blew out hot air from the attic, keeping the reading high. Some blow-in foam and duck tape over the hole stopped the draft, and now 72F settings makes for a 72F room.
Don’t ask about some future need to pull wires though that wall section. Electric money I save now will pay for that extra wiring charge later.
Latest Answers