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Manymarbles
Member since Jul 2022
1 post

Mini split for porch

Builders are talking about people now installing mini splits on back porches. While it does not keep air in obviously it will blow freezing cold air over a certain entertainment or sitting area. Do these things last awhile? Maintenance on them?


DownshiftAndFloorIt
LSU Fan
Here
Member since Jan 2011
62190 posts

God damn I'm frickin poor


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220
HangingWithMrCooper
Cal State Fullerton Fan
The Bay Area
Member since Aug 2017
90 posts

Don’t know how big your porch is but I would look at the Cajun Koolers as well.

LINK


Canvasback
Member since Jan 2016
181 posts

My contractor told me people are putting an extra 5 ton unit with multiple 18” air registers blowing on seating areas for their patios for cooling. This is open patio’s….what am I missing here? Literally throwing money to the wind!


Wiseguy
LSU Fan
Member since Mar 2020
2167 posts

I saw a house recently that had an A/C vent on the back patio. Looked to be run from the indoor central air. In between 2 ceiling fans on the patio to blow the cold air down, I suppose. Don’t know how well(or poorly) this works. I guess you only add a minimal amount of cost to operate assuming the A/C is sized for the inside plus the extra vent. All the return air came from indoors. It made me curious, but I assumed it didn’t really work that well since it isn’t widespread.


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WaWaWeeWa
Member since Oct 2015
13957 posts

quote:

My contractor told me people are putting an extra 5 ton unit with multiple 18” air registers blowing on seating areas for their patios for cooling. This is open patio’s….what am I missing here? Literally throwing money to the wind!


My dad used to yell at me if I kept the door open to long when going outside and say “I’m not cooling the whole neighborhood”

I guess these people are cooling the whole neighborhood


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100
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Member since 2001
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rexorotten
Missouri Fan
Missouri
Member since Oct 2013
2249 posts

Do it and halt global warming for all of us please.


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LEASTBAY
LSU Fan
Member since Aug 2007
11531 posts

Are you saying they want to air condition an area open to the outside? I have one in my patio and it's awesome but it has walls and doors etc.


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AndyCBR
USA Fan
Baton Rouge, LA
Member since Nov 2012
6160 posts

This won't work very well.

The way an A/C system works is to recirculate air inside the envelope and bring down the humidity and temperature by sending the same air through multiple passes over the coils.

Essentially the outdoor unit would be a once through system.

Hospital surgery rooms have these types of systems but they are incredibly oversized and have separate dehumidification systems.

You'll see something similar at Disney when they leave the doors open 24/7 but you don't see the refrigeration plant they have running in the background.

Running a vent off your main system is even worse. It guarantees your house is under negative pressure and will draw in makeup air from the outdoors.



SwampCollie
LSU Fan
Louisiana
Member since Nov 2018
149 posts

I've been to a house w/ several AC vents on the open porch. The vents were positioned directly above ceiling fans and you could absolutely feel the difference.

That said, I wouldn't want it tied to my central unit and running 24/7. With cash to burn I'd definitely be interested in a mini split for intermittent use. Have one setup in my garage and highly recommend


baldona
Auburn Fan
Florida
Member since Feb 2016
17398 posts

This should win First World Problem of the Day fo sho


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AndyCBR
USA Fan
Baton Rouge, LA
Member since Nov 2012
6160 posts

quote:

I've been to a house w/ several AC vents on the open porch. The vents were positioned directly above ceiling fans and you could absolutely feel the difference.


Yes, when you pump conditioned air out of the conditioned space to the porch I bet you can feel the difference on the porch.

Wanna know where the makeup air is coming from for the conditioned space?

It’s a dumb idea and the same as having leaky supply ducts in the attic.


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