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LG · R-32 wall unit · updated October 14, 2026

LG DUALCOOL and Extended Piping R-32 wall units, 9,000 to 36,000 BTU/h

Two LG families under one collection name: the DUALCOOL in 9,000, 12,000 and 18,000 BTU/h, a single-zone unit per LG Canada, and the Extended Piping in 24,000, 30,000 and 36,000 BTU/h, built for long line sets (up to 164 ft). At the same capacity, the DUALCOOL carries exactly the certified ratings of the ARTCOOL Mirror: what changes is the indoor unit.

Compare the sizesSee all 6 products
The DUALCOOL plate

Six sizes, five numbers

Sizes
9,000 to 36,000 BTU/h
Heats down to
−20°C (LG sheets)
SEER2
20.0 to 23.8
Maximum line set
82 to 164 ft
Indicative LogisVert
$1,020 to $1,896

Sources: LG Canada DUALCOOL brochure (2025), LG Extended Piping manual (2026), NEEP and Hydro-Québec, read October 14, 2026.

What LG says

Two LG names, one collection

DUALCOOL® · 9,000 to 18,000

LG Canada’s French brochure presents the DUALCOOL as a single-zone residential air conditioner with a white indoor unit. Its document code, PO_LG_R32_High_Efficiency, files it in LG’s high-efficiency line.

Its KUSAB outdoor units are the same as the ARTCOOL Mirror’s. LG publishes identical figures for both: the difference is the indoor unit. LG presents the ARTCOOL Mirror as single-zone and multi-zone, and the DUALCOOL as a single-zone unit.

KNUAB121A

K
R-32
N
indoor unit
U
not published
A
wall-mounted
B
not published
12
12,000 BTU/h
1
generation
A
208-230 V

Extended Piping · 24,000 to 36,000

LG does not sell these three sizes under the DUALCOOL name: its engineering manual calls them “R32 Single-Zone Extended Piping Wall-Mounted”. No LG Canada brochure covers them yet, so their figures come from LG Electronics U.S.A.’s manual (February 2026 revision).

What sets them apart: up to 164 ft of line set and 98.4 ft of rise, built-in Wi-Fi, and a white RAL 9016 indoor unit.

KSSAP361A

K
R-32
S
system
S
single zone
A
wall-mounted
P
Extended Piping
36
36,000 BTU/h
1
generation
A
208-230 V

Decoder: nomenclature published by LG in the Extended Piping manual (page 8). LG does not define the U and B letters of the DUALCOOL models there, so they stay marked “not published”.

The spec plates

The spec plate for each size

One plate per size, with values as LG and the certification bodies publish them. “Not published”: no primary source gives the value.

DUALCOOL 9,000 BTU/h

Spec plate · KSUAB091A
ENERGY STAR Cold Climate

Identification

System
KSUAB091A
Indoor unit
KNUAB091A
Outdoor unit
KUSAB091A
AHRI certificate
215413005
ENERGY STAR
Yes, Cold Climate
LogisVert
Not on the list (under 12,000 BTU/h)

Performance

SEER2
23.8
EER2
14.95
HSPF2 (region IV)
10.9
HSPF2 (region V, cold)
8.3
Rated cooling at 35°C
9,000 BTU/h
Rated heating at 8.3°C
10,900 BTU/h
Max. at −8°C
11,200 BTU/h
Max. at −15°C
9,500 BTU/h
Max. at −20°C
7,810 BTU/h
COP at −15°C
2.00

Installation

Power supply
208/230 V, 60 Hz, 1 ph
MCA / MOP
12.0 / 15.0 A
Liquid / vapour lines
1/4 / 3/8 in.
Maximum line set
82.0 ft
Maximum rise
49.2 ft
No added refrigerant up to
41.0 ft
Indoor / outdoor weight
19.73 / 68.8 lb
Indoor sound (dB(A), high to sleep)
41 / 35 / 25 / 21
Outdoor sound (dB(A), cool / heat)
47 / 51
LG Canada brochure PO_LG_R32_High_Efficiency_04_25_CA_FR; NEEP / ENERGY STAR / Hydro-Québec certification, October 14, 2026.See the product page

DUALCOOL 12,000 BTU/h

Spec plate · KSUAB121A
ENERGY STAR Cold Climate

Identification

System
KSUAB121A
Indoor unit
KNUAB121A
Outdoor unit
KUSAB121A
AHRI certificate
215413007
ENERGY STAR
Yes, Cold Climate
LogisVert
$1,020

Performance

SEER2
22.5
EER2
12.8
HSPF2 (region IV)
10.5
HSPF2 (region V, cold)
8.0
Rated cooling at 35°C
12,000 BTU/h
Rated heating at 8.3°C
13,600 BTU/h
Max. at −8°C
12,400 BTU/h
Max. at −15°C
10,000 BTU/h
Max. at −20°C
8,010 BTU/h
COP at −15°C
1.99

Installation

Power supply
208/230 V, 60 Hz, 1 ph
MCA / MOP
12.0 / 15.0 A
Liquid / vapour lines
1/4 / 3/8 in.
Maximum line set
82.0 ft
Maximum rise
49.2 ft
No added refrigerant up to
41.0 ft
Indoor / outdoor weight
19.73 / 68.8 lb
Indoor sound (dB(A), high to sleep)
41 / 35 / 25 / 21
Outdoor sound (dB(A), cool / heat)
47 / 51
LG Canada brochure PO_LG_R32_High_Efficiency_04_25_CA_FR; NEEP / ENERGY STAR / Hydro-Québec certification, October 14, 2026.See the product page

DUALCOOL 18,000 BTU/h

Spec plate · KSUAB181A
ENERGY STAR Cold Climate

Identification

System
KSUAB181A
Indoor unit
KNUAB181A
Outdoor unit
KUSAB181A
AHRI certificate
215413009
ENERGY STAR
Yes, Cold Climate
LogisVert
$1,596

Performance

SEER2
23.0
EER2
13.0
HSPF2 (region IV)
10.0
HSPF2 (region V, cold)
8.0
Rated cooling at 35°C
18,000 BTU/h
Rated heating at 8.3°C
21,600 BTU/h
Max. at −8°C
18,600 BTU/h
Max. at −15°C
15,200 BTU/h
Max. at −20°C
12,160 BTU/h
COP at −15°C
1.80

Installation

Power supply
208/230 V, 60 Hz, 1 ph
MCA / MOP
19.0 / 30.0 A
Liquid / vapour lines
3/8 / 5/8 in.
Maximum line set
114.8 ft
Maximum rise
49.2 ft
No added refrigerant up to
24.6 ft
Indoor / outdoor weight
26.0 / 127.9 lb
Indoor sound (dB(A), high to sleep)
47 / 42 / 37 / 31
Outdoor sound (dB(A), cool / heat)
55 / 55
LG Canada brochure PO_LG_R32_High_Efficiency_04_25_CA_FR; NEEP / ENERGY STAR / Hydro-Québec certification, October 14, 2026.See the product page

Extended Piping 24,000 BTU/h

Spec plate · KSSAP241A
ENERGY STAR Cold Climate

Identification

System
KSSAP241A
Indoor unit
KNSAP241A
Outdoor unit
KUSAP241A
AHRI certificate
215828272
ENERGY STAR
Yes, Cold Climate
LogisVert
$1,896

Performance

SEER2
22.0
EER2
13.0
HSPF2 (region IV)
9.7
HSPF2 (region V, cold)
7.5
Rated cooling at 35°C
22,000 BTU/h
Rated heating at 8.3°C
24,000 BTU/h
Max. at −8°C
23,210 BTU/h
Max. at −15°C
20,000 BTU/h
Max. at −20°C
16,580 BTU/h
COP at −15°C
1.80

Installation

Power supply
208/230 V, 60 Hz, 1 ph
MCA / MOP
19.0 / 30.0 A
Liquid / vapour lines
3/8 / 5/8 in.
Maximum line set
164.0 ft
Maximum rise
98.4 ft
No added refrigerant up to
24.6 ft
Indoor / outdoor weight
36.6 / 135.4 lb
Indoor sound (dB(A), high to sleep)
49 / 44 / 40 / 30
Outdoor sound (dB(A), cool / heat)
55 / 56
LG Electronics U.S.A. manual EM_SZ_Extended_Piping_R32 (rev. 02_26); NEEP / ENERGY STAR / Hydro-Québec certification, October 14, 2026.See the product page

Extended Piping 30,000 BTU/h

Spec plate · KSSAP301A
Not ENERGY STAR

Identification

System
KSSAP301A
Indoor unit
KNSAP301A
Outdoor unit
KUSAP301A
AHRI certificate
not published
ENERGY STAR
No (LG)
LogisVert
Not on the list (not ENERGY STAR)

Performance

SEER2
21.0
EER2
11.3
HSPF2 (region IV)
8.5
HSPF2 (region V, cold)
not published
Rated cooling at 35°C
30,000 BTU/h
Rated heating at 8.3°C
32,400 BTU/h
Max. at −8°C
27,500 BTU/h
Max. at −15°C
24,000 BTU/h
Max. at −20°C
20,030 BTU/h
COP at −15°C
not published

Installation

Power supply
208/230 V, 60 Hz, 1 ph
MCA / MOP
23.0 / 30.0 A
Liquid / vapour lines
3/8 / 5/8 in.
Maximum line set
164.0 ft
Maximum rise
98.4 ft
No added refrigerant up to
24.6 ft
Indoor / outdoor weight
40.8 / 147.9 lb
Indoor sound (dB(A), high to sleep)
51 / 47 / 43 / 33
Outdoor sound (dB(A), cool / heat)
55 / 58
LG Electronics U.S.A. manual EM_SZ_Extended_Piping_R32 (rev. 02_26).See the product page

Extended Piping 36,000 BTU/h

Spec plate · KSSAP361A
Not ENERGY STAR

Identification

System
KSSAP361A
Indoor unit
KNSAP361A
Outdoor unit
KUSAP361A
AHRI certificate
not published
ENERGY STAR
No (LG)
LogisVert
Not on the list (not ENERGY STAR)

Performance

SEER2
20.0
EER2
10.0
HSPF2 (region IV)
8.5
HSPF2 (region V, cold)
not published
Rated cooling at 35°C
33,000 BTU/h
Rated heating at 8.3°C
35,200 BTU/h
Max. at −8°C
30,000 BTU/h
Max. at −15°C
26,000 BTU/h
Max. at −20°C
21,620 BTU/h
COP at −15°C
not published

Installation

Power supply
208/230 V, 60 Hz, 1 ph
MCA / MOP
23.0 / 30.0 A
Liquid / vapour lines
3/8 / 5/8 in.
Maximum line set
164.0 ft
Maximum rise
98.4 ft
No added refrigerant up to
24.6 ft
Indoor / outdoor weight
40.8 / 147.9 lb
Indoor sound (dB(A), high to sleep)
51 / 47 / 43 / 33
Outdoor sound (dB(A), cool / heat)
55 / 58
LG Electronics U.S.A. manual EM_SZ_Extended_Piping_R32 (rev. 02_26).See the product page
Same capacity

DUALCOOL or ARTCOOL: the gap in numbers

At 9,000 and 12,000 the DUALCOOL and the ARTCOOL Mirror are identical on paper; the ARTCOOL Deluxe goes further into the cold but takes a shorter line set. At 18,000 and 24,000 the ARTCOOL Premier heats down to −25°C. At 30,000 and 36,000 the Extended Piping is the only LG R-32 wall unit in our catalogue.

LG Canada DUALCOOL, ARTCOOL Mirror and ARTCOOL Deluxe brochures (2025); NEEP and Hydro-Québec, October 14, 2026. The 9,000 gets no LogisVert amount in any of the three series (under 12,000 BTU/h).
Same capacityDUALCOOLARTCOOL MirrorARTCOOL Deluxe
SEER2 · 9,000 / 12,00023.8 / 22.523.8 / 22.527.0 / 25.5
HSPF2 · 9,000 / 12,00010.9 / 10.510.9 / 10.513.5 / 11.2
Max. at −15°C (BTU/h)9,500 / 10,0009,500 / 10,00012,000 / 14,700
Coldest certified point (NEEP)−20°C−20°C−35°C
Maximum line set82.0 ft82.0 ft65.6 ft
Indoor unit weight19.73 lb22.7 lb24.3 lb
LogisVert 12,000$1,020$1,020$1,008
LG Canada DUALCOOL, ARTCOOL Mirror and ARTCOOL Prestige brochures (2025); NEEP and Hydro-Québec, October 14, 2026. The DUALCOOL brochure prints 15,120 BTU/h at −15°C; NEEP certifies 15,200.
Same capacityDUALCOOLARTCOOL MirrorARTCOOL Premier
SEER223.023.024.0
HSPF210.010.011.0
Max. at −15°C (BTU/h)15,20015,20021,600
Coldest certified point (NEEP)−20°C · 12,160−20°C · 12,160−25°C · 14,780
Maximum line set114.8 ft114.8 ft164.0 ft
Indoor unit weight26.0 lb27.8 lb37.7 lb
LogisVert$1,596$1,596$1,572
LG Extended Piping manual (02_26) and LG Canada ARTCOOL Prestige brochure (2025), whose column reads “22 kBTU/h”; NEEP and Hydro-Québec, October 14, 2026.
Same capacityExtended Piping KSSAP241AARTCOOL Premier KSSAL241A
Rated output (cool / heat)22,000 / 24,00022,000 / 24,000
SEER222.023.0
HSPF29.710.2
Max. at −15°C (BTU/h)20,00021,600
Coldest certified point (NEEP)−20°C · 16,580−25°C · 14,780
Maximum line set164.0 ft164.0 ft
LogisVert$1,896$1,896

See also: ARTCOOL Mirror R-32 · ARTCOOL Deluxe R-32 · ARTCOOL Premier R-32

A Montréal winter

A −20°C limit, 12 days a year

12days a year when the minimum drops below −20°C at Montréal-Trudeau
12,160BTU/h the DUALCOOL 18,000 still delivers at −20°C (NEEP)

Environment Canada’s 1991-2020 normals count 12 days a year below −20°C at Montréal-Trudeau, 6.7 of them in January. The DUALCOOL and the Extended Piping heat down to −20°C, per LG: on those days the house needs backup heat.

To heat further down

  • ARTCOOL Premier: heating down to −25°C, in 15,000, 18,000 and 22,000 BTU/h per LG. See
  • ARTCOOL Deluxe: NEEP publishes its certified output down to −35°C, in 9,000 and 12,000 BTU/h. See
LogisVert

Three of six sizes qualify

Hydro-Québec requires at least 12,000 BTU/h and ENERGY STAR certification. The 9,000 is too small; LG states the 30,000 and 36,000 are not ENERGY STAR. The other three (12,000, 18,000 and 24,000) are Cold Climate certified, at $120 per 1,000 BTU/h at −8°C.

Hydro-Québec list of October 14, 2026, to be confirmed by Hydro-Québec. Hydro-Québec lists the DUALCOOL (KNUAB indoor unit) and the ARTCOOL Mirror (KNUAK) under two separate certificates, at the same amount.
SizeSystemAHRI certificateIndicative amount
DUALCOOL 9,000KSUAB091A215413005Not listed (under 12,000 BTU/h)
DUALCOOL 12,000KSUAB121A215413007$1,020
DUALCOOL 18,000KSUAB181A215413009$1,596
Extended Piping 24,000KSSAP241A215828272$1,896
Extended Piping 30,000KSSAP301Anot publishedNot listed (not ENERGY STAR)
Extended Piping 36,000KSSAP361Anot publishedNot listed (not ENERGY STAR)

The program rules are explained once on the LG page.

Installation

What installation involves

  • Line set: 82 ft for the 9,000 and 12,000, 114.8 ft for the 18,000, 164 ft for the Extended Piping, with 49.2 ft or 98.4 ft of rise.
  • Pre-charged refrigerant for 41 ft (9,000 and 12,000) or 24.6 ft (18,000 and Extended Piping); beyond that the installer adds 0.16 or 0.32 oz per foot.
  • Defrost: LG’s French DUALCOOL brochure lists a built-in heating element for the condensate pan.
  • Cooling in cold weather: down to −10°C as standard, −18°C with LG’s optional wind protection kit.
  • Power: 208/230 V, maximum overcurrent protection of 15 A for the 9,000 and 12,000 and 30 A for the other sizes (MOP on each plate).

None of our published projects names the DUALCOOL series yet. Our LG wall-unit projects, by city, are on the LG page.

See our LG projects
Frequently asked questions

What people ask us most

DUALCOOL or ARTCOOL Mirror: which heats better?
Neither: at the same capacity they share the KUSAB outdoor unit and the same certified figures (for example 10,000 BTU/h maximum at −15°C for the 12,000). You choose by the indoor unit: white front for the DUALCOOL, mirror front for the Mirror.
Does the DUALCOOL heat at −25°C?
No: its heating range stops at −20°C, per LG. For −25°C look at the ARTCOOL Premier; NEEP publishes the ARTCOOL Deluxe’s output down to −35°C.
Why does the 9,000 BTU/h get no LogisVert amount?
Hydro-Québec requires a nominal capacity of at least 12,000 BTU/h. The 9,000 is ENERGY STAR Cold Climate certified but too small for the program.
Do the 30,000 and 36,000 BTU/h qualify for LogisVert?
No. LG’s manual lists them as “No” for ENERGY STAR and Cold Climate, and they are not on Hydro-Québec’s list of October 14, 2026.
How long can the line set be?
Up to 82 ft for the 9,000 and 12,000, 114.8 ft for the 18,000 and 164 ft for the Extended Piping from 24,000 to 36,000 BTU/h.
Can the DUALCOOL run on a multi-zone system?
LG presents the DUALCOOL as a single-zone unit. For a wall head on an LG multi-zone, see LG multi-zone.
AirGreen · Air conditioning & heating

Your DUALCOOL, at the right size, chosen with you and installed by AirGreen.

We come see your home, choose the series and size with you, and hand you a clear quote with the AHRI number and the indicative LogisVert amount when the unit qualifies.

Book my free estimate514 316-2973

Hydro-Québec does not solicit anyone by phone or door to door for LogisVert. A call “from Hydro-Québec” selling a heat pump? Hang up.

RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16
Free estimateAt home, no obligation
LogisVert checkedBy AHRI number, in Hydro-Québec’s tool
Showroom1370 Joliot-Curie Street, Suite 712, Boucherville

Sources checked October 14, 2026

  1. LG Electronics Canada, “DUALCOOL” brochure PO_LG_R32_High_Efficiency_04_25_CA_FR (© 2025).
  2. LG Electronics Canada, “ARTCOOL Mirror” (PO_LG_R32_ArtCool_Mirror_04_25_CA_FR), “ARTCOOL Deluxe” (PO_LG_R32_ArtCool_Mirror_Deluxe_04_25_CA_FR) and “ARTCOOL Prestige” (PO_LG_R32_ArtCool_Premier_03_25_CA_FR) brochures.
  3. LG Electronics U.S.A., R32 Single-Zone Extended Piping Wall-Mounted Engineering Manual, revision 02_26 (February 2026).
  4. NEEP ccASHP list, searched by AHRI number, read October 14, 2026.
  5. ENERGY STAR, Certified Air-Source Heat Pumps (dataset w7cv-9xjt), October 14, 2026.
  6. Hydro-Québec, LogisVert list of October 14, 2026 and participation guide version 1.10 (September 15, 2026).
  7. Environment and Climate Change Canada, 1991-2020 normals, Montréal-Trudeau airport.

LogisVert amounts are indicative: Hydro-Québec confirms them when you apply. Prices on quote.

The DUALCOOL shop

All six sizes, right below.

From 9,000 to 36,000 BTU/h. Open the page of the size you want.

LG