Mini-split vs. wall mount AC

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guarddog
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Location: Canada

Mini-split vs. wall mount AC

Post by guarddog » Thu Oct 12, 2017 1:25 am

I am currently looking to add heat & AC (mostly heat) to a property that has electric baseboard heat only.

I have lived with ductless mini-split heat pump systems for many years. The type that has part inside and part outside. Like this photo.
fujitsu-RLS3-heat-pump.png
fujitsu-RLS3-heat-pump.png (33.14 KiB) Viewed 30 times


I know you can get through the wall type AC units that do heat as well. Something like this.
wall.jpg
wall.jpg (17.01 KiB) Viewed 26 times


I am looking at units that both have a cooling rate of 12,000 BTU - so essentially the same output.

From my point of view here are the pros of the mini-split system.

1) Quiet, as the compressor is outside - inside you hear next to nothing
2) Can be scaled up to do a larger area (I only need it for a fairly small area)
3) Hole through the wall of the building is much smaller
4) Can function down to -26°C (depending on model)

Cons of mini-split

1) Very expensive, about $4000 installed

Pros of a through the wall mount

1) Much cheaper, under $700

Cons of through the wall

1) Most are VERY loud
2) Can operate down to what temperature? Not sure.


I have not analyzed the efficiency yet, but I am assuming the split units are more efficient.

Anyone have some input they can share with me.


guarddog
Posts: 24
Joined: Wed Apr 05, 2017 1:35 am
Location: Canada

Re: Mini-split vs. wall mount AC

Post by guarddog » Thu Oct 12, 2017 3:12 am

Ok, I have done some more research on a couple models to see efficiency/price etc.

Mini-Splits

Fujitsu 12RLS3 @ $1,630 CDN / $4,200 CDN (installed)
AC: 12,000 / Heat: 16,000
EER 15.2
SEER 29.3
Noise: 23 - 42db (indoor) / 43/47 (outdoor)
Warranty: 10 years


Through Wall

Comfort Aire BGE-123 @ $709.00 CDN (requires wall sleeve @ $105 extra)
AC: 12,00 BTU / Heat: 10,000 Btu
EER 9.4
Covers: 450 - 500 sq/ft
Noise: above 51 db
Warranty: 1 year

Clearly the mini-split systems are untouchable in performance, but you are paying for that performance in a big way.

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Shannon
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Re: Mini-split vs. wall mount AC

Post by Shannon » Thu Oct 12, 2017 9:04 am

I think if this is a long term system you are looking for the Mini-split may be worth the money. With a 10 year warranty.
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Shannon
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Re: Mini-split vs. wall mount AC

Post by Shannon » Thu Oct 12, 2017 9:05 am

Oh I just seen that the installed price is much higher at 4200. So that changes things for me if you are installing the other yourself.
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