The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) use a scale to describe thermal sensation.
The scale is based on a person’s perception and so may not match an actual temperature.
|
Thermal Sensation
|
Code
|
|
very hot
|
+4
|
|
hot
|
+3
|
|
warm
|
+2
|
|
slightly warm
|
+1
|
|
indifferent (neither warm nor cool)
|
0
|
|
slightly cool
|
-1
|
|
cool
|
-2
|
|
cold
|
-3
|
|
very cold
|
-4
|
