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Started By
Message
Does it cost more to cool down 1 degree if it’s colder?
Posted on 8/25/26 at 12:50 am
Posted on 8/25/26 at 12:50 am
Hypothetically, does cooling from 84-83 cost the same or more or less than cooling from 70-69?
8
Posted on 8/25/26 at 12:56 am to OysterPoBoy
only if you're traveling 100 mph
Posted on 8/25/26 at 12:59 am to OysterPoBoy
Posted on 8/25/26 at 2:58 am to Tygerfan
Both cost bout tree fiddy.
Posted on 8/25/26 at 4:16 am to OysterPoBoy
Celsius or Fahrenheit?
Posted on 8/25/26 at 4:57 am to OysterPoBoy
Heat transfer occurs faster at a greater temperature delta between the two heat sources.
With a 42 degree evaporator coil surface temp heat (BTUs) from the 84 degree air will flow into the refrigerant faster then from the 70 degree air.
Also how it works with the condenser coil outside. The hotter it is outside the more the u it needs to work to reject heat.
Another factor is sensible heat vs latent heat. Your DX unit will. Have both a latent heat and sensible heat capacity. Sensible heat is just air temp change. Patient heat is temperature and moisture content change. It takes more energy to remove moisture content from the air.
With a 42 degree evaporator coil surface temp heat (BTUs) from the 84 degree air will flow into the refrigerant faster then from the 70 degree air.
Also how it works with the condenser coil outside. The hotter it is outside the more the u it needs to work to reject heat.
Another factor is sensible heat vs latent heat. Your DX unit will. Have both a latent heat and sensible heat capacity. Sensible heat is just air temp change. Patient heat is temperature and moisture content change. It takes more energy to remove moisture content from the air.
Posted on 8/25/26 at 4:57 am to OysterPoBoy
Depends on if you are the kid or the Dad.
Posted on 8/25/26 at 5:37 am to Kafka
quote:
only if you're traveling 100 mph
This is why I keep my house at 70 during the day then turn it down to 60 in the evening. Could you even imagine cooling your house from 80 to 60 in the evening. Would cost a fortune.
Posted on 8/25/26 at 5:46 am to OysterPoBoy
quote:
Hypothetically, does cooling from 84-83 cost the same or more or less than cooling from 70-69?
Cost less, how much less? I don’t know.
Posted on 8/25/26 at 6:22 am to OysterPoBoy
I wrote this and it’s totally not from AI
quote:
Cooling a home from 84°F to 83°F costs less than cooling it from 70°F to 69°F, because air conditioners use exponentially more energy to maintain lower temperatures as the temperature gap between inside and outside grows wider.Why Lower Temperatures Cost MoreHeat Gain Rate: Heat moves faster into a house when the indoor temperature is much lower than the hot outdoor temperature.Run Time: An air conditioner must run much longer to drop a degree in the 60s or low 70s than it does in the 80s.Workload: High temperatures force the compressor to work harder and consume more electricity to remove heat and humidity from the air.
Posted on 8/25/26 at 6:22 am to WhiskeyThrottle
quote:
is is why I keep my house at 70 during the day then turn it down to 60 in the evening.
You turn your AC down to 60??!!!
Posted on 8/25/26 at 7:14 am to JudgeHolden
quote:
Both cost bout tree fiddy.
Yes if you have level billing from Entergy.
That has been my rolling average of 350 a month from one of the worlds best and worst power companies.
Posted on 8/25/26 at 7:18 am to tigeraddict
I was told there would be no entropy on this show.
Posted on 8/25/26 at 7:59 am to UptownJoeBrown
quote:
I was told there would be no entropy on this show.
that would be against the (second) law
Posted on 8/25/26 at 8:00 am to OysterPoBoy
quote:
Hypothetically, does cooling from 84-83 cost the same or more or less than cooling from 70-69?
It all depends on the humidity level. AC works by removing humidity
Posted on 8/25/26 at 8:01 am to Kafka
quote:
only if you're traveling 100 mph
NEVER FORGET
Posted on 8/25/26 at 8:05 am to tigeraddict
quote:
Heat transfer occurs faster at a greater temperature delta between the two heat sources.
With a 42 degree evaporator coil surface temp heat (BTUs) from the 84 degree air will flow into the refrigerant faster then from the 70 degree air.
Also how it works with the condenser coil outside. The hotter it is outside the more the u it needs to work to reject heat.
Another factor is sensible heat vs latent heat. Your DX unit will. Have both a latent heat and sensible heat capacity. Sensible heat is just air temp change. Patient heat is temperature and moisture content change. It takes more energy to remove moisture content from the air.
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