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Re: [Shop-talk] mini-split or window unit ?

To: Mike Rambour <> 2903e8d5c8f:6.0.391,18.0.761,17.0.607.475.0000000 definitions=2021-04-19_16:2021-04-19_03,2021-04-19_16,2020-04-07_01 signatures=0 mlxlogscore=999 malwarescore=0 suspectscore=0 adultscore=0 clxscore=1011 phishscore=0 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2104190165
Subject: Re: [Shop-talk] mini-split or window unit ?
From: Pat Horne <>
Date: Mon, 19 Apr 2021 18:57:28 -0500
Cc: shop-talk <>
References: <>
Mike, this may be a tough call. Window units are easy but mini-splits probably 
have a much better efficiency. If you have any possibility of adding an 
additional conditioned area such as an office, a lot of mini-split compressors 
can support multiple inside units. 


Pat Horne 
We support Habitat for Humanity

On Apr 19, 2021, at 6:50 PM, Mike Rambour <> wrote:

 Ok, I want a cooler garage this year.  I have been planning to install a 
mini-split for several years now and this is the year.    Power will be a 
slight problem, shop has plenty but none where I want the compressor to go, so 
have to run some power. Shop has 200amp sub-panel 40ft away from where I want 
to install compressor. Not a big deal BUT I saw a 18k btu window unit at Home 
Depot and was thinking that should work great and be half the price.

 My shop is 24ft x 40ft so 960 sq. ft. 9ft tall walls of 2x6 filled with 
insulation and I went overboard on ceiling insulation also, stays cool until 
mid-afternnon on hot days then becomes a oven for the evening, I live in S. 
Calif.  I already have a Hot Dawg gas heater so I don't need the heat that a 
mini-split would provide, but might be nice to get rid of the Hot Dawg (doubt 
that I would) and have one unit do both.   In the "shop" area of the garage I 
have barn doors that I welded up forever ago, 1x2 steel with a plywood 
exterior, i have not used/opened those doors in over a decade, they were 
installed when I built the shop just so I could get my lathe and mill in 
easily.   I have no windows in the shop so I was thinking I could put this 
window ac unit in one of those barn doors, the frame will easily handle the 
weight and it would be a super easy hole to cut and install the unit into, I 
think even the hinges would handle the weight but I can get stronger bigger 
hinges if I need them.  Then I have dedicated 50amp plug right next to that for 
my TIG to plug the unit into, I weld mostly in the front of the shop anyway but 
I wired every wall with a 50amp for the TIG and 30amp for the table saw when I 
built the shop (I really went overboard on wiring).

 So what would you do ? mini-split seems to the answer but half the price for a 
easier install window unit and cut a hole in a unused door seems like a good 
idea, good ideas are often the worst...


A gun is like a parachute, if you need one but don't have it,
you'll probably never need one again.

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