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Midea28 triple-zone · updated October 8, 2026

Midea triple-zone: three rooms on a single outdoor unit, down to -30 °C.

Three Midea28 wall heads on an 18,000 to 48,000 BTU/h compressor. The 18,000 takes up to three heads: the starting point for three small rooms.

Build my 3 rooms Book my free estimate

Triple-zone · R-454B

Your triple-zone, compressor by compressor

Tap a compressor: the system, its certified heat and its LogisVert amount.

Compressor

Midea28 · 3 heads18,000 BTU/h compressorMO3HX-H18B-2A

20,000 BTU/hHeat at -8 °C

10,000 BTU/hMax. at -30 °C

25.0SEER2

$2,400LogisVert

AHRI 215471457 · up to 3 heads on this compressor · ENERGY STAR cold climate.

See the product

4Midea28 compressors for 3 rooms

3Midea28 wall heads

-30 °Cheat published by the NEEP list

$5,400Highest LogisVert on the page

AirGreen × MIDEAMIDEA PRO dealerMidea28 triple-zoneDown to -30 °COne LogisVert per systemUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore

01 · The compressors

4 compressors for 3 rooms.

Each compressor takes a maximum number of heads. The bigger it is, the more heat it gives and the higher the LogisVert amount.

Compressor	Heads	Heat at 8 °C	Heat at -8 °C	Max. at -15 °C	Max. at -30 °C	SEER2	HSPF2	LogisVert	AHRI
18,000 BTU/hMO3HX-H18B-2A	Up to 3	20,000 BTU/h	20,000 BTU/h	19,000 BTU/h	10,000 BTU/h	25.0	10.4	$2,400	215471457
27,000 BTU/hMO4HX-H27B-2A	Up to 4	27,000 BTU/h	30,000 BTU/h	27,000 BTU/h	14,000 BTU/h	23.0	10.5	$3,600	215471460
36,000 BTU/hMO5HX-H36B-2A	Up to 5	36,000 BTU/h	38,000 BTU/h	36,000 BTU/h	22,400 BTU/h	23.0	10.7	$4,560	215471463
48,000 BTU/hMO6HX-H48B-2A	Up to 6	49,000 BTU/h	45,000 BTU/h	47,000 BTU/h	24,600 BTU/h	23.0	11.0	$5,400	215471466

ENERGY STAR (data by AHRI number, Oct. 8, 2026) and NEEP for -30 °C (maximum published heat). A multi-zone is certified with a given head combination: real heat depends on the heads connected. Blue marks the best value in each column.

02 · How it works

One unit outside, 3 heads inside.

Tap a step, or switch to cooling. Each head gets its own pair of lines.

MIDEA AirGreen diagram

AirGreen principle diagram: unit positions and line lengths vary from house to house.

03 · Build your rooms

3 rooms: find the starting compressor.

Set the head size for each room: we show you the starting Midea28 compressor, its load and its LogisVert amount.

Rooms3

Room 19,000

Room 29,000

Room 39,000

ALL EASY PRO wall heads from 6,000 to 36,000 BTU/h depending on the compressor. Each room’s size is confirmed at the visit (area, windows, insulation).

Starting compressor

27,000 BTU/h · MO4HX-H27B-2A

Up to 4 heads · LogisVert $3,600 for the system (AHRI 215471460)

Connected heads: 27,000 BTU/h100% of the compressor

18,000up to 3 heads
$2,400

27,000up to 4 heads
$3,600

36,000up to 5 heads
$4,560

48,000up to 6 heads
$5,400

Starting point: the smallest compressor that takes 3 heads, your largest head, and whose rated capacity covers the total. We confirm it with Midea’s combination table.

See this multi-zone

MO3HX-H18B, MO4HX-H27B, MO5HX-H36B and MO6HX-H48B compressors (Extreme Heat series). Number of heads and allowed sizes: Midea multi-zone brochure and combination table (3, 4, 5 and 6 ports). That table allows some combinations above rated capacity: we pick yours with you at the visit. LogisVert: Hydro-Québec formula, per system.

04 · In deep cold

At -30 °C, the 48,000 compressor still gives 24,600 BTU/h.

Certified heat at 8 °C and -8 °C, then maximum at -15 °C and -30 °C, for each compressor. On these systems, certified heat at -8 °C often equals or beats the 8 °C figure.

18,000 BTU/h

MO3HX-H18B-2A

100%at -8 °C compared with 8 °C

8 °C20,000 BTU/h

-8 °C20,000 BTU/h

-15 °C19,000 BTU/h

-30 °C10,000 BTU/h

Heat published down to -30 °C by the NEEP list

27,000 BTU/h

MO4HX-H27B-2A

111%at -8 °C compared with 8 °C

8 °C27,000 BTU/h

-8 °C30,000 BTU/h

-15 °C27,000 BTU/h

-30 °C14,000 BTU/h

Heat published down to -30 °C by the NEEP list

36,000 BTU/h

MO5HX-H36B-2A

106%at -8 °C compared with 8 °C

8 °C36,000 BTU/h

-8 °C38,000 BTU/h

-15 °C36,000 BTU/h

-30 °C22,400 BTU/h

Heat published down to -30 °C by the NEEP list

48,000 BTU/h

MO6HX-H48B-2A

92%at -8 °C compared with 8 °C

8 °C49,000 BTU/h

-8 °C45,000 BTU/h

-15 °C47,000 BTU/h

-30 °C24,600 BTU/h

Heat published down to -30 °C by the NEEP list

ENERGY STAR (8 °C, -8 °C, -15 °C) and NEEP (-30 °C, maximum heat), data by AHRI number, Oct. 8, 2026. Bars scaled per compressor.

05 · 1 kWh, how much heat?

The Midea28 compressor, in kWh of heat.

Pick a compressor and a temperature: kWh of heat per kWh of electricity, from the NEEP list COPs, and the cost of a kWh of heat at Rate D.

Model

Outside

Heat delivered× 2.53kWh of heat per kWh of electricity

Electric baseboard1.00

This heat pump2.53

Cost of one kWh of heat, Rate D

2.79 ¢1st tier (straight electric: 7.065 ¢)

4.40 ¢2nd tier (straight electric: 11.142 ¢)

At -8 °C, heat of 20,000 BTU/h at the rated point (NEEP list).

COPs published by the NEEP list (ashp.neep.org, data by AHRI number, Oct. 8, 2026): rated at 8, -8 and -15 °C; at the coldest point, at maximum output, as reported by the manufacturer. Electric baseboard: about 100% efficient (NRCan, “Heating with Electricity”). Hydro-Québec Rate D in force April 1, 2026: 7.065¢/kWh up to 40 kWh per day, 11.142¢/kWh beyond, plus the access charge. A lab COP is not a bill: real use depends on the house and how it is used. These COPs are the compressor’s, with the head combination it was certified with (Midea): 6,000 × 3 for the 18,000, 6,000 × 3 + 9,000 for the 27,000, 6,000 × 3 + 9,000 × 2 for the 36,000, 9,000 × 4 + 12,000 for the 48,000. With other heads, real figures differ.

06 · Hydro-Québec LogisVert

From $2,400 to $5,400 for your Midea triple-zone. One amount per system.

Hydro-Québec counts a multi-zone as one system: the amount follows the compressor’s certified heat at -8 °C, not the number of heads. Tap a compressor to see the calculation and your application deadline.

ENERGY STAR cold climate: $120 / 1,000 BTU/h

Your calculation

Multi-zone · 48,000 BTU/h

$5,400

CompressorMO6HX-H48B-2A + Midea28 wall heads

Heat at -8 °C45,000 BTU/h

CertificationENERGY STAR cold climate

Formula45.0 × $120 = $5,400

AHRI number215471466

Installation date

Apply no later than —

One system, one amount

Two heads or six, the amount does not change: the compressor is what counts.

ENERGY STAR required

Since November 26, 2025, only ENERGY STAR certified units qualify.

Nine months to apply

You apply no later than 9 months after installation.

Capped at cost

The rebate never exceeds 100% of the purchase and installation cost before taxes.

Source: Hydro-Québec, LogisVert residential participation guide v1.10 (Sept. 15, 2026) and eligible heat pump search tool, consulted Oct. 6, 2026; heat at -8 °C: ENERGY STAR, Oct. 8, 2026. Indicative amounts, confirmed by Hydro-Québec when you apply. Our LogisVert page

07 · What Midea puts inside

What Midea built into its multi-zone.

The features Midea states for this system.

The system

Midea multi-zoneEach room at its own temperature

Each head is set, scheduled and turned off on its own. You heat or cool only the rooms you use.

Midea multi-zonePartial load

When not every room calls for it, the variable-speed compressor runs at partial load and uses less, according to Midea.

Midea multi-zoneSynchroConnect

The system checks its own wiring, and matches refrigerant lines to the right wires even if a port was swapped, according to Midea.

The compressor

Extreme Heat · Midea28Certified at -30 °C

All four Extreme Heat compressors are on the NEEP cold-climate heat pump list, with a maximum heat published at -30 °C: 10,000 to 24,600 BTU/h.

All our Midea multi-zonesVariable speed and R-454B

Inverter technology according to Midea: the compressor varies its speed instead of stopping. R-454B refrigerant per our product pages.

According to MideaA single unit outside

One outdoor unit for several rooms: less space taken outside and less outdoor noise than one unit per room.

Source: Midea Comfort Canada (mideacomfortna.ca), single-zone, ALL EASY PRO and INFINI pages, consulted Oct. 8, 2026; compressor and refrigerant: ENERGY STAR, Oct. 8, 2026.

08 · Did you know?

Eight things to know about the Midea triple-zone.

Tap a card to flip it: each number’s source is on the back.

1 / 8

0118,000 BTU/h12+12+12Three heads up to doubleTap for the explanation
01
On the 18,000, Midea’s table accepts three heads from 6,000 + 6,000 + 6,000 up to 12,000 + 12,000 + 12,000, twice its rated capacity.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 8.
02Certification6+6+6The 18,000 is certified as a triple zoneTap for the explanation
02
Three 6,000 heads: that is Midea’s standard combination for the 18,000, and the one it was certified with.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 8 et 10.
0327,000 BTU/h48,000BTU/hThree heads on the 27,000Tap for the explanation
03
On the 27,000, three heads can total up to 48,000 BTU/h: 6,000 + 18,000 + 24,000, 12,000 + 12,000 + 24,000 or 12,000 + 18,000 + 18,000.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 8.
0436,000 BTU/h6+6+12Not three small heads on the 36,000Tap for the explanation
04
On the 36,000, the smallest three-head set listed is 6,000 + 6,000 + 12,000, and the largest 18,000 + 18,000 + 18,000.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 8.
0536,000 BTU/h96.1kgThe 36,000 in numbersTap for the explanation
05
The 36,000 (MO5HX) measures 38 1/2 × 16 3/8 × 38 3/8 in., weighs 96.1 kg (212 lb) and is 65 dB(A), according to Midea.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 10.
0636,000 BTU/h4.0COPFour kWh of heat for oneTap for the explanation
06
The 36,000 has a rated COP of 4.0 at 8 °C, per the NEEP list; the 18,000 is close behind at 3.99.
NEEP list, data by AHRI number, Oct. 8, 2026.
07Good to know÷Beyond the rating, heat is sharedTap for the explanation
07
If the heads total more than the outdoor unit’s rated capacity, each head gets less, mostly in heating, according to Midea. We aim for the right total, not the maximum.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, note 1.
08Heads9,000 = 12,000Same cabinet, 9,000 or 12,000Tap for the explanation
08
The 9,000 and 12,000 ALL EASY PRO heads share a cabinet: a 12,000 can take a 9,000’s place in Midea’s table.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, note 2.

Swipe to see the other cards, tap a card to flip it.

09 · Midea warranty

12 years on parts and compressor, if the system is registered in time.

For the first owner of a single-family home, registration within 60 days of installation. Pick your case.

12 years

on the compressor and on parts: first owner, single-family home, unit registered within 60 days.

Compressor

12 years

Parts

12 years

Labour

Not covered by Midea

Registration within 60 days

On mideacomfortna.ca, within 60 days of installation. We show you how at start-up.

Licensed installer

Midea requires installation by a licensed contractor. AirGreen: RBQ 5645-9605-01.

What Midea does not cover

Labour and refrigerant are excluded from the Midea warranty, in plain words.

Source: Midea limited warranty for Canada (rev. 12.2024, September 2026 edition), linked from mideacomfortna.ca, consulted Oct. 6, 2026.

10 · Dealer

AirGreen — MIDEA PRO dealer

MIDEA PRO dealer: recognized expertise across the whole residential and commercial range.

Up to 12 years of Midea warranty on parts and compressor for systems registered within 60 days.

Specialized MIDEA technical training completed: installation to the manufacturer’s standards, advanced diagnostics and certified service.

Full command of MIDEA systems, from selection to start-up, including preventive maintenance and specialized repairs.

Priority access to original parts for after-sales service, cutting response times.

Privileged access to PRO programs and new technology, in Montreal, Laval, Longueuil, the North Shore, the South Shore and Montérégie.

1Free visit

We count the rooms, measure each one and plan the line route to the outdoor unit.

2Clear quote

The compressor, each head’s size, the AHRI number and the indicative LogisVert amount.

3Installation and start-up

Vacuum, refrigerant charge, room-by-room heating and cooling tests.

4Warranty and LogisVert

We give you the AHRI number and the papers for your Hydro-Québec application.

11 · Our Midea installs

25 Midea triple-zone installs published. Here are the latest six.

Each article on our blog shows a real install: the rooms, the heads, the line route.

Triple-zone Midea28 heat pump · HenryvillePublished Oct. 7, 2026

Triple-zone Midea28 heat pump · Saint-AlexandrePublished Oct. 6, 2026

Triple-zone Midea28 heat pump · NoyanPublished Oct. 5, 2026

Triple-zone Midea28 heat pump · Saint-Blaise-sur-RichelieuPublished Oct. 2, 2026

Triple-zone Midea28 heat pump · Saint-Jean-sur-RichelieuPublished Sept. 29, 2026

Triple-zone Midea28 heat pump · LacollePublished Sept. 24, 2026

All our installs

12 · Our installs by region

25 Midea triple-zones published: here is where.

Tap a region to see the cities.

Montérégie and Vaudreuil 21 published installs

Beloeil
Carignan
Chambly
Clarenceville
Henryville
Lacolle
McMasterville
Mont-Saint-Grégoire
Mont-Saint-Hilaire
Noyan
Otterburn Park
Saint-Alexandre
Saint-Blaise-sur-Richelieu
Saint-Jean-sur-Richelieu
Saint-Mathias-sur-Richelieu
Saint-Paul-de-l’Île-aux-Noix
Saint-Sébastien
Saint-Valentin
Sainte-Anne-de-Sabrevois
Sainte-Brigide-d’Iberville
Venise-en-Québec

AirGreen’s Nos réalisations blog, as of Oct. 8, 2026: of 25 “Midea triple-zones” articles, 25 name a place (municipality, borough, area or shore), and those are the ones counted here. One article = one published install.

13 · True or false?

Five questions about the triple-zone.

Answer, then read why.

Question 1 / 5Score 0

“The 18,000 compressor is certified with three heads.”
True. Three 6,000 heads, its standard combination.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 10.
“Three 6,000 heads go on the 36,000.”
False. The 36,000’s smallest three-head set is 6,000 + 6,000 + 12,000.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 8.
“Three heads can total double the 18,000 compressor.”
True. 12,000 + 12,000 + 12,000 is in the table, but heat is shared beyond the rating.
AirGreen Midea28 multizone sheet, Midea combination and specification tables.
“A triple zone gets one LogisVert amount per head.”
False. One amount for the system.
Hydro-Québec, LogisVert guide v1.10.
“You can switch one room off without stopping the other two.”
True. Each head has its own setpoint and on/off.
Midea Comfort Canada (mideacomfortna.ca).

14 · Frequently asked questions

What people ask us about the Midea triple-zone.

The smallest one that takes 3 heads and whose rated capacity covers the total of your heads: 18,000 BTU/h (up to 3 heads), 27,000 BTU/h (up to 4 heads), 36,000 BTU/h (up to 5 heads), 48,000 BTU/h (up to 6 heads). We confirm it with Midea’s combination table.

AirGreen × MIDEAMIDEA PRO dealerMidea28 triple-zoneDown to -30 °COne LogisVert per systemUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore

AirGreen · Heating & cooling

Your Midea triple-zone, laid out with you and installed by AirGreen.

We come and see the rooms, confirm the compressor and each head’s size, then you get a clear quote: the system, the AHRI number and the indicative LogisVert amount.

Book my free estimate 514 316-2973

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 commitment

MIDEA PRO dealerWall, multi-zone, central

Showroom1370, rue Joliot-Curie, local 712, Boucherville

Sources checked on October 8, 2026

ENERGY STAR, Certified Air-Source Heat Pumps (dataset w7cv-9xjt): MO3HX to MO6HX compressors, data of Oct. 8, 2026.
NEEP, Cold Climate Air Source Heat Pump List (ashp.neep.org): maximum heat at -30 °C, consulted Oct. 8, 2026.
Midea, “Ducted & Ductless Compatible Multi-Zone System” brochure: ports per compressor, SynchroConnect, per-room control, combination tables.
Midea Comfort Canada (mideacomfortna.ca): single-zone, multi-zone and ALL EASY PRO pages, consulted Oct. 8, 2026; MO3HX to MO6HX installation manual.
Midea limited warranty for Canada (rev. 12.2024, September 2026 edition), consulted Oct. 6, 2026.
Hydro-Québec, LogisVert residential participation guide, version 1.10, Sept. 15, 2026; eligible heat pump search tool, consulted Oct. 6, 2026.
AirGreen, “Nos réalisations” blog: 52 Midea multi-zone installs published as of Oct. 8, 2026.
airgreen.ca product pages (combinations, AHRI numbers), Oct. 8, 2026.

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

Prices on quote. Free home estimate.

The MIDEA triple-zone shop

All 4 Midea triple-zone units, right below.

Open the product page: the head combinations, the AHRI number and the indicative LogisVert amount.

Midea triple-zone: three rooms on a single outdoor unit, down to -30 °C.

Your triple-zone, compressor by compressor

4 compressors for 3 rooms.

One unit outside, 3 heads inside.

3 rooms: find the starting compressor.