u got aircond so people assume you consume more electricity. fact

then you can assume they use more also. it just that they are good in argument and you lost

i think that kind of people won't listen no matter how you explain to them. they will keep on arguing until you show them hard evidence.

Why don't you check if they use aircon or not by looking at their aircond compressor outside

TS, you just tell them you only use "fan mode". so it didn't consume electricity like in "cool mode".

no la. if you use fan mode, only got wind like the normal fan and your aircon won't cold. You just tell them you only use fan mode, so it don't consume too much electricity.