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Message
A/C Question About Temp Settings & Energy Usage
Posted on 8/20/25 at 11:53 pm
Posted on 8/20/25 at 11:53 pm
Could someone explain to me how setting my unit on 71 appears to be using more electricity than having it set on 70? The "swing" is on .3 for both.
On 71, I'm using 50 k.w. in 24 hours. On 70, I'm using 40 k.w. in 24 hours.
The run times seem to be odd as well. Today, at one point, it ran for an hour & a half straight, then shut off for 15-20 mins., set on 71. When it is set on 70, I get consistent 20-40 mins. on & 10-20 mins. off cycles...
Any feedback would be greatly appreciated. Thanks.
On 71, I'm using 50 k.w. in 24 hours. On 70, I'm using 40 k.w. in 24 hours.
The run times seem to be odd as well. Today, at one point, it ran for an hour & a half straight, then shut off for 15-20 mins., set on 71. When it is set on 70, I get consistent 20-40 mins. on & 10-20 mins. off cycles...
Any feedback would be greatly appreciated. Thanks.
This post was edited on 8/21/25 at 12:21 am
5
Posted on 8/21/25 at 5:23 am to Craw Dawg
Are you taking time of day, temperature and humidity outside into account?
This post was edited on 8/21/25 at 5:24 am
Posted on 8/21/25 at 7:33 am to Tangineck
You have different heat loads across those days.
The only factor to your energy usage (assuming single stage) is the run time. There’s no black magic happening.
If you have a 2-stage or variable unit, that introduces some variables in how the unit will respond.
The only factor to your energy usage (assuming single stage) is the run time. There’s no black magic happening.
If you have a 2-stage or variable unit, that introduces some variables in how the unit will respond.
Posted on 8/21/25 at 8:10 am to Craw Dawg
you need to have exact same outside temperatures for all hours of the day AND you need all internal home activity (laundry, dishes, etc.) to be at the same level and at the same times to get comparable data.
Posted on 8/21/25 at 8:16 am to Craw Dawg
quote:
Could someone explain to me how setting my unit on 71 appears to be using more electricity than having it set on 70?
Sure.
Your accounting of KWH is incorrect.
---'Blad
Posted on 8/21/25 at 10:14 am to Craw Dawg
it will just be the amp needed to start the compressor that will change. Lower temp will result in more starts
Posted on 8/21/25 at 10:29 am to Craw Dawg
It's similar to how going faster on the interstate increases fuel mileage. Once the unit is up and running it takes more energy to stop it and start it back up. We keep ours steady at 68.
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