Mini-split advice

[Treasure]

I'm looking for some advice on mini-split placement in my shop to be built. The shop is 28x35 with 16' walls. I'm planing on splitting the shop in half with basically 28x17ish mechanic side and an equal-ish woodworking side. A mezzanine will be placed above the woodworking side, eventually.

Currently, I'm eyeing a 27k BTU Mr. Cool dual zone unit with an 18k head, and a 9k head. I'm thinking of putting the 18k head near the center of the bays at about 7' high, and the 9k head in the mezzanine area.

Any suggestions for placement?

Climate - south Louisiana. Shop is to be sprayed with closed cell spray foam.

 

[shade]

Everyone here will tell you do to a load calculator...
Many dont account for running machines, bodies in the shop etc....So keep that in mind when you size it. Id personally go higher but Im no pro.
By calculations online I would be WAY over. I run 2 units in a 40x25 each @ 24k so 48k of cooling capacity.

Your height is good i think recommendations is like 8' high on the walls. So your thought process is good!

Why not go 2 units for redundancy just out of curiosity

 

[Treasure]

I'm pretty sure the 27k will suit my needs. I'm more curious on if the orientation would work. I would think that 2 separate units would cost more to operated over one multi-zone system.

 

[SALIV8]

Some immediate thoughts.

*if it will be a dusty environment prepare to clean the filter/coils often.

*I have a 3-head sys and another 4-head sys and running these constantly in auto will add about $20-40 for each separate sys to my bill each month. Not bad and I’m in Chicago.

*good insulation that you’re doing will help you tremendously. But I agree with shade with your high walls I would increase the main area btus and maybe even the mezzanine but I’m not familiar with south Louisiana climate so take that with a grain of salt. Im just thinking it’s hot and humid there.

*placement with maintenance in mind is important.

*check your local utility for rebates.

 

[Treasure]

Thanks for the input. It seems that every BTU calculator I do gives me a different number, and manual J calcs seem to be geared towards residential and not open area shops.