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re: Question for the ot a/c man regarding house temperature

Posted on 5/23/19 at 10:33 pm to
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
73681 posts
Posted on 5/23/19 at 10:33 pm to
quote:

never cold never hot cooling ability of a geothermal unit.


Don't know specifics. Just remember that it lived up to the cost savings, but the house always seemed too hot in the summer and too cold in the winter.
This post was edited on 5/23/19 at 10:36 pm
Posted by Roll Tide Ravens
Birmingham, AL
Member since Nov 2015
42606 posts
Posted on 5/23/19 at 10:56 pm to
Speaking of AC, I now have a thermostat that I can control via phone app. Can turn it down before I start home so that it’s already cooler when I get home.
Posted by Korkstand
Member since Nov 2003
28709 posts
Posted on 5/23/19 at 11:11 pm to
quote:

I think the bumping the AC up to save money is a myth. Something about cooling down thermal mass.
It's not a myth, it's just that there are a lot of factors that determine how much it will save, if any at all.

Obviously if OP went out of town for a week and had it on 80 the whole time, he would save some money. Is he saving anything doing that daily? I don't know, doesn't sound like it if it takes over 2 hours to get down to 70. Maybe his house is poorly insulated, or maybe his unit is undersized (TWSS), or both.
Posted by Jason in BR LA
Dutchtown
Member since Feb 2012
134 posts
Posted on 5/23/19 at 11:16 pm to
Buy a dehumidifier. It helps your body operate more efficiently with humidity in the 50% range. You feel comfortable at 3 or 4 degrees higher than you normally do. Also it makes the AC work less because the cooling energy goes to cooling air and not condensing so much water.
Posted by Tarps99
Lafourche Parish
Member since Apr 2017
7446 posts
Posted on 5/24/19 at 6:14 am to
quote:

I just installed a variable speed compressor at my house and it can choke down to running as little as 5% and up to 100%. As long as it doesn’t shot completely off, I was told it was as efficient as possible


I guess with a system like this there is a unit that can actually speed up and slow down.

I hate it when people think that when your turn down the thermostat that they expect colder even air to magically come out a system that was designed to work at one speed.
Posted by tigerinthebueche
Member since Oct 2010
36791 posts
Posted on 5/24/19 at 6:27 am to
quote:

Just saying it is a shitty system. Very economical though.



Why is it a shitty system? The home we bought has one. It’s cheap to run and has performed great. Thermostat is never above 73.
Posted by GetCocky11
Calgary, AB
Member since Oct 2012
51296 posts
Posted on 5/24/19 at 6:49 am to
quote:

Just leave it at 73 or 74.
You’ll get used to it in a week or 2.



I leave mine at 78.

It is comfortable, and my power bill isn't bad.
This post was edited on 5/24/19 at 6:50 am
Posted by notsince98
KC, MO
Member since Oct 2012
18005 posts
Posted on 5/24/19 at 6:53 am to
quote:

What puts more stress on an ac unit:


Running doesn't stress the AC unit. Starting and stopping is what stresses the unit.

Nothing wrong with what you are doing.
Posted by Chuker
St George, Louisiana
Member since Nov 2015
7544 posts
Posted on 5/24/19 at 6:59 am to
quote:

geothermal through the ground or my pond on 2-3 perfectly zoned units.



once you get a price for that I bet you'll reconsider. An extra 10k goes a long way in paying for electricity. Also, if building a new home, build it to be efficient and conditioning will almost be a non-issue.
Posted by TDsngumbo
Alpha Silverfox
Member since Oct 2011
41633 posts
Posted on 5/24/19 at 7:06 am to
Get him Walt!
Posted by TDsngumbo
Alpha Silverfox
Member since Oct 2011
41633 posts
Posted on 5/24/19 at 7:07 am to
It could be that your unit needs more refrigerant. Get that added to it and see if it cools down faster then.
Posted by dallastiger55
Jennings, LA
Member since Jan 2010
27746 posts
Posted on 5/24/19 at 7:17 am to
ive always slept at 72 but thinking of dropping it down to 70. curious how much more $$ per month eeach degree would be?

its a two story house and this is the upstairs unit.


Would it be like $100+ more per month or $20?
Posted by skuter
P'ville
Member since Jan 2005
6143 posts
Posted on 5/24/19 at 7:18 am to
quote:

That voltage is super high, but it doesn’t take much to keep it running.

quote:

Voltage is super high

quote:

voltage

This post was edited on 5/24/19 at 7:19 am
Posted by Hangover Haven
Metry
Member since Oct 2013
26610 posts
Posted on 5/24/19 at 7:22 am to
quote:

I bump it up to 80° for the day. But it only takes an hour or so for the temp to get down to 70°-72°.


What, you live in a 72 qt Igloo.....?
Posted by notsince98
KC, MO
Member since Oct 2012
18005 posts
Posted on 5/24/19 at 7:29 am to
quote:

once you get a price for that I bet you'll reconsider. An extra 10k goes a long way in paying for electricity. Also, if building a new home, build it to be efficient and conditioning will almost be a non-issue.


A common practice these days for new construction is to do the geothermal ground loops around the base of the foundation. It is super cheap to do it this way. It essentially just costs materials as the holes are already there when the foundations are formed.

Obviously this doesn't apply if you don't have a basement and just a slab home.
Posted by notsince98
KC, MO
Member since Oct 2012
18005 posts
Posted on 5/24/19 at 7:30 am to
quote:

ive always slept at 72 but thinking of dropping it down to 70. curious how much more $$ per month eeach degree would be?

its a two story house and this is the upstairs unit.


Would it be like $100+ more per month or $20?


Probably the $10-$20 range.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
66763 posts
Posted on 5/24/19 at 7:37 am to
It depends on how well insulated your house is.

Mine isnt insulated well at all so I see big savings by bumping up to about 78 during the day when I'm not home. Sleep with it on 70 because that's about the best it can do in the summer and runs all night.

My old house was well insulated and stayed between 72 and 68 all summer no problem.
Posted by Athos
Member since Sep 2016
11878 posts
Posted on 5/24/19 at 7:38 am to
Goddamn people. I can’t sleep well unless it’s 68-69. I don’t know how the hell you people get quality sleep at temps over 70.

LINK
Posted by StringedInstruments
Member since Oct 2013
18418 posts
Posted on 5/24/19 at 7:42 am to
I sleep best at 68ish too but when it’s 96 degrees all day and then 75 and humid at night, you need a very well insulated house with an updated system to maintain 68.

My system struggles to stay at 74 during the summer and the thermostat will read 76-77 by 4pm. It then runs most of the night to keep us at 72 at night. Of course, it’s a complete dump of a house with ductwork that wasn’t measure correctly so my son’s room is ice cold all the time (even with the vent closed) but the other end of the House gets practically no air. It’s a trickle but his room is a hurricane.
This post was edited on 5/24/19 at 7:43 am
Posted by Areddishfish
The Wild West
Member since Oct 2015
6283 posts
Posted on 5/24/19 at 7:46 am to
quote:

I bump it up to 80° for the day.

But it only takes an hour or so for the temp to get down to 70°-72°.




The only way this holds true is if you bump it up to 80 but it only goes up to 74 during the day which would then imply that you don't live in Louisiana or you have a 700 SF house.
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