re: New House AC question

Do like Mawmaw and Pawpaw used to do... foil up those windows and hang blankets from the doorways baw!

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and in the heat of the day I could drop the entire house below 60 if I wanted to

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I hear ya. Me Too. 1785 sq ft , 4 ton 2 stage. So at 2.7 tons stage 1, i am not over tonned. Love them 2 stages

I’m starting to feel like this is the best I’ll get as well.

I left my thermostat on 72 all day today for the bedrooms and I just checked the temperature at 4:30.

Master bedroom 73
Kitchen 69
Living room 70
Kids room 73

Outside temp 97

Have a qualified professional pull a heat load first. In theory, you should have enough tonnage to cool but I’d double check. Second, have the duct work looked at. If you’re getting far cooler temps in the center of the house but struggling on the far reaches you could have shoddy duct work. (Happens more than you’d expect)

My kid’s bedroom unit ran for 20 hours yesterday while set on 72.

Master unit ram for 16 at 72.

Could I be losing too much cold air in the ducts or is it typical to get temps of 63 on air coming out of my ceiling vents? I’m using an old infrared temp gun to check.

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I don’t believe so. 2650sq/ft living and we have 2 3 ton units. Regular fiberglass insulation.

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In my opinion you don’t have quite enough tonnage for the home. You either need a little larger unit, or you need a better insulated home or a better duct system or both.

We just moved into a 2515 sq ft home built in 2022. 4 ton Amana. Had it serviced twice this summer. Thought we needed a 5 ton. Owner of A/C company said everything checked out fine, and that we would potentially have humidity problems with a 5 ton unit during October through April when it isn’t blazing hot because the unit would shut off more times than not.

During the past few weeks, we have our A/C set for 74 from 6am-8pm, then drop it to 69 at night. It maintains 74 pretty well if there isn’t too much in and out. Just takes a little long to reach 69 at night. Typically, it’s still 71 degrees at 10:30-11pm when I finally fall asleep.

He did notice that the fan was not set on High in the attic, which has helped since flipping on. Looking at planting some medium-sized trees in November to fell with outside shade.