It's That Time Of Year Again! What Is Your AC Thermostat Set To?

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76 during the day, 72 at night. Stacye gets chilly easily because of circulation issues. On the flipside though we are both hot sleepers, so prefer the house cooler at night.

It's stormy here today, and the forecast states that several days of moderate temperatures (high 70's to low 80's) are coming after the storms move out. I'm looking forward to not needing the AC very much for a while.
 
69 during the day, 68 at night (sometimes 67).
I have insulated and sealed the house extremely well. On a 90 degree day the AC doesn't usually even turn on until 4 or 5 pm.

Electric bill is around $120 in July and August. Less than $20 more than in the winter when the AC isn't running. Well worth it.
 
This year for current June billing dates of end of May until June 28, it as $145.84 for 858 KWH. Last year it was $160.76 for 998 kwh. It wws much hotter last year than this year's comparable time period.
 
 
Electric is my only utility bill (other than cell phone and Internet service).  No natural gas (or propane) or water/sewer.  The water well pump, of course, requires electric power but my water usage is below average.  The aerobic septic system has an aeration pump that runs near continuously and a discharge pump that as runs needed per the daily early-morning timer (and float sensor level).  Two desktop computers that run continuously, another that "sleeps" majority of the time.  All three are connected to UPS battery units that pull power to maintain charge.  Garage refrigerator that obviously runs a lot in the summer heat.  Other electric/electronic gadgets that pull operating or stand-by power.
 
106 at my place right now (per the Wunderground station around the corner.  That's seven degrees higher than forecast and it's only 4 PM.  Thermostat set at 76.  I may sleep at my buddy's tonight because he likes it cold, and I can give my AC system a rest. 

 

I sure hope the intensity of this heat is able to defeat the hot ridge over us and suck in the marine layer sooner than expected.
 
I live in Alabama, where most of the year is pretty warm. Because I live alone I turn the A/C off when I leave home in the morning around 08:00 and then turn it back on when I come home in the afternoon. It stays on 68°F.  My home is about 30 years old and has the original 3 ton R22 Goodman system. It still has its reciprocating Copeland compressor. Only takes about 15 or 20 minutes to cool down when turned on in the evening.  

 

I see no need to air condition the house when I am not home, but I want to have my bedroom cold when I sleep.
 
ac off when not home

Ours would take far too long to get to appropriate temp if we would turn it off when we are not home, especially when it has been mid 90s lately. Our house is not all that well insulated. Plus, better humidity control is far worth the cost, IMHO.

We could probably get away with it in the winter, though our new thermostat that was installed with our new heat pump clicks the emergency heat on if there is more than a 2 degree difference in the set point and room temp. Just an absolute waste. 
 
Reply number 51

On any heat pump I’ve ever lived with. I always lock out the back up resistance heat. It really lowers the operating cost to do so a lot of times the heat pump in the winners going into a defrost cycle in the automatically turn on the resistance heat so you don’t have any cool air blowing around for a few minutes. I don’t mind that when you look at the cost so I’ve locked out the electric heat.

I did this on my former partners system over 10 years ago. I put a switch on the side of the air handler. I said if you ever feel like you need more heat, go down and change it. He’s never used the resistance heat in over 10 years.

Normally, I find you can turn the air conditioning off when you’re gone and save energy, depending on the power of your cooling system and help well sealed your home is usually your home will not get all that humid. If you leave everything closed up, then when you get home, you can turn the cooling back on, you do save a considerable amount of energy doing this, but it depends on the power of your system and your house if it will work for you or not.

John
 
It’s 11 am and it’s already 96 F outside and 72.5 downstairs in the living room. It’s projected to reach 106 F this afternoon. Yesterday the high was 104 F. We kept the windows open last night and managed to cool off the upstairs to 70 F. According to the forecast we won’t be able to open the windows until after 9 pm just like last night. Even so, the highest the temp got to last night downstairs was 74 F but upstairs was over 80 F at 11pm.

All the fans are going full blast. Just hope the power stays on.

Eddie
 
When home 75 degrees F during day, usually leave it at that setting for night.

Vintage Patton "High Velocity Air Circulator"fans give great air circulation so things feel cooler even with thermostat set bit higher than what some might consider comfortable. You can't fail can you? Today's cheap Asian made tat cannot compare to vintage American built. Keep them clean, occasional drop of oil on bearings (thanks to convenient opening), and they will run forever.

Temps while warm past several days things are more about humidity which has been oppressive.
 

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