I have a small studio - around 650 sq feet. I try to ask about energy economy using my central air. There are two conflicting theories
1 Theory that most people follow : keep the ac all the time - when you leave, just increase the temperature- Theory that I follow : when I leave I switch it off completely
Please tell me who is right ? Explanation for my (#2) theory : I understand that the central unit runs at the steady pace (?). It does not matter whether it is 95 degrees or 80 degrees in apartment ...once I set the temp to 75 degrees (when I come back from work) the ac will be blowing air at the same speed, consuming energy at the same rate. True it will take it longer to knock down temp from 95 to 75 (40 minutes ) than from 85 to required
75 (20 minutes). But ..assuming that you leave the apartment and set the tempt to 85 the ac will switch on/off multiple times during the 9-10 hrs period you are away from home which will in effect be longer (more energy consumed) than 40 minutes. Please provide me with some good information - am I rite on this ?The reasoning might get qualified if
A) somebody had large, good insulated house and it would take him horribly long to knock down temp from 95 to 75. So I guess in this case it be better to just allow ac unit to switch off/on for short periods of time during 9-10 hrs you are away from home.
B) The ac unit runs at different speeds ..consuming more energy with higher spread between present temp in the apartment and requested temp.