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Midea multi-zone heat pumps · updated October 8, 2026
Midea multi-zones: one outdoor unit, 2 to 6 rooms, down to -30 °C.
Four Midea28 Extreme Heat compressors, from 18,000 to 48,000 BTU/h, and one wall head per room, each at its own temperature. For LogisVert, Hydro-Québec counts the system once: $2,400 to $5,400, whatever the number of heads.
AirGreen × MIDEAMIDEA PRO dealer2 to 6 roomsDown to -30 °COne LogisVert per systemUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen × MIDEAMIDEA PRO dealer2 to 6 roomsDown to -30 °COne LogisVert per systemUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen × MIDEA
A Midea multi-zone, a local team.
MIDEA designs the system. AirGreen lays it out room by room with you, installs it and starts it up.
What MIDEA brings
Down to -30 °CExtreme Heat compressors: the NEEP list publishes their heat at -30 °C.
One room, one settingEach head is set and scheduled on its own.
SynchroConnectThe system checks its wiring and matches lines to the right wires.
Up to 12 yearsParts and compressor, single-family home, registered within 60 days.
What AirGreen brings
MIDEA PRO dealerSpecialized Midea technical training completed.
Free home estimateWe count the rooms, measure each one and plan the line route to the outdoor unit.
Warranty and LogisVertWe show you the Midea registration and give you the AHRI number for Hydro-Québec.
RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16.
The result: the right Midea multi-zone, laid out with you and installed by a MIDEA PRO team.
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, up to six heads inside.
Pick the number of rooms: each head gets its own pair of lines. Switch to cooling to see the circuit reverse.
MIDEA AirGreen diagram
AirGreen principle diagram: unit positions and line lengths vary from house to house.
03 · Build your rooms
One outdoor unit, up to six rooms. Build yours.
Add your rooms and the head size for each: we show you the starting Midea28 compressor, its load and its LogisVert amount, counted per system, not per head.
Rooms3
Room 112,000
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
36,000 BTU/h · MO5HX-H36B-2A
Up to 5 heads · LogisVert $4,560 for the system (AHRI 215471463)
Connected heads: 30,000 BTU/h83% 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.
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
1 kWh of electricity
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 · The zones
From dual-zone to six rooms: pick your number of rooms.
Each page shows the compressors that take that many heads, their certified heat and their LogisVert amount.
From $2,400 to $5,400 per Midea multi-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
Your calculation
Multi-zone · 36,000 BTU/h
$4,560
CompressorMO5HX-H36B-2A + Midea28 wall heads
Heat at -8 °C38,000 BTU/h
CertificationENERGY STAR cold climate
Formula38.0 × $120 = $4,560
AHRI number215471463
Your calculation
Multi-zone · 27,000 BTU/h
$3,600
CompressorMO4HX-H27B-2A + Midea28 wall heads
Heat at -8 °C30,000 BTU/h
CertificationENERGY STAR cold climate
Formula30.0 × $120 = $3,600
AHRI number215471460
Your calculation
Multi-zone · 18,000 BTU/h
$2,400
CompressorMO3HX-H18B-2A + Midea28 wall heads
Heat at -8 °C20,000 BTU/h
CertificationENERGY STAR cold climate
Formula20.0 × $120 = $2,400
AHRI number215471457
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
08 · What Midea puts inside
One room, one setting: what Midea built into its multi-zones.
The features Midea states for its multi-zones, wall heads and Extreme Heat compressors.
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.
ALL EASY PRO wall heads
ALL EASY PROTop-mounted filter, held by magnets
The filter sits on top of the unit and attaches with magnets: easy to remove and clean, even often, according to Midea.
ALL EASY PRORemovable fan wheel
The fan wheel comes out for a thorough cleaning, and the evaporator becomes reachable.
ALL EASY PROAway sensor
When the room has been empty for over 30 minutes, the unit lowers its operating frequency to save energy.
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.
09 · Did you know?
Eight things to know about Midea multi-zones.
Tap a card to flip it: each number’s source is on the back.
AirGreen×MIDEA1 / 8
0118,000 BTU/h135%The smallest compressor pushes hardTap for the explanation
01
At 8 °C, the NEEP list gives up to 27,000 BTU/h for the 18,000 compressor (rated 20,000 BTU/h), and 57,000 BTU/h for the 48,000.
NEEP list, data by AHRI number, Oct. 8, 2026.
0236,000 BTU/h4.0COPFour kWh of heat for oneTap for the explanation
02
At 8 °C, the 36,000 compressor has a rated COP of 4.0, with the 18,000 close behind at 3.99. At -15 °C, all four keep a COP of 2.0.
NEEP list, data by AHRI number, Oct. 8, 2026 ; ENERGY STAR, data by AHRI number, Oct. 8, 2026.
03Connections+1portOne more port on every compressorTap for the explanation
03
Midea added one port to all its multi-zone outdoor units: 3 on the 18,000, 4 on the 27,000, 5 on the 36,000, 6 on the 48,000.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 3.
04Heads9,000 = 12,000Same cabinet, 9,000 or 12,000Tap for the explanation
04
According to Midea, the 9,000 and 12,000 ALL EASY PRO heads share a cabinet: in its combination table, a 12,000 can take a 9,000’s place.
06Certification6K × 3Certified with one exact setTap for the explanation
06
Each compressor’s numbers come from one head set: three 6,000 heads on the 18,000, three 6,000 and one 9,000 on the 27,000, three 6,000 and two 9,000 on the 36,000, four 9,000 and one 12,000 on the 48,000.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 10.
07Outdoor units246lb137 to 246 lb outsideTap for the explanation
07
The outdoor units weigh 62.3 kg (137 lb, 18,000) to 111.8 kg (246 lb, 48,000). The 48,000 stands 52 1/2 in. tall, according to Midea.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 10.
0827,000 BTU/h61dB(A)The quietest outsideTap for the explanation
08
The 27,000 (61 dB(A)) is quieter than the 18,000 (62 dB(A)); the 36,000 and 48,000 are 65 dB(A). The 48,000 moves up to 4,503 CFM of air, according to Midea.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 10.
Swipe to see the other cards, tap a card to flip it.
10 · 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.
1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y
Compressor
12 years
Parts
12 years
Labour
Not covered by Midea
7 years
on the compressor, and 5 years on parts, without registration.
1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y
Compressor
7 years
Parts
5 years
Labour
Not covered by Midea
5 years
on the compressor, and 1 year on parts, for any other use.
1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y
Compressor
5 years
Parts
1 year
Labour
Not covered by Midea
5 years
on the compressor and on parts, for the next owner.
1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y
Compressor
5 years
Parts
5 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.
11 · The MIDEA story
From Shunde to your living room: the brand behind your heat pump.
Midea has been in air conditioning since 1985; AirGreen installs its heat pumps here. Six milestones, in order.
1968Shunde, China
A group of 23 residents of Shunde, in Guangdong, led by He Xiangjian, founds the business that becomes Midea.
1985First air conditioners
Midea enters air conditioning. More than 40 years later, that know-how is at the heart of its heat pumps.
41R&D centres
Midea reports 41 research and development centres and a presence in more than 200 countries and regions.
≈ 1/3of inverter ACs and heat pumps
According to Midea, nearly one third of the world’s inverter air conditioners and heat pumps come from its plants.
2026No. 231 on the Fortune Global 500
Its best rank to date, and an 11th consecutive year on the list.
HereAirGreen, MIDEA PRO dealer
In Montreal, Laval, Longueuil, the North Shore, the South Shore and Montérégie: Midea technical training completed, installed and serviced by our team.
Sources: Midea “Brand Story” (midea.com) and WIPO, “Midea Group: from plastic caps to a global technology conglomerate” (1968); Midea Hong Kong listing prospectus, April 2024 (1985); Midea “About Midea” page (midea.com.cn) and “Residential Heat Pumps” line card (41 R&D centres, 200 countries and regions, inverter share); Midea release of Aug. 7, 2026 and fortune.com (rank 231). Consulted Oct. 8, 2026.
12 · 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.
Double and triple zones, by region. Tap a region to see the cities.
Montreal 11 published installs
Côte Saint-Luc
Dorval
Kirkland
Montréal-Est
Pierrefonds-Roxboro
Plateau-Mont-Royal
Vieux-Port
Ville Mont-Royal
Westmount
Île-Bizard–Sainte-Geneviève
Île-des-Sœurs
South Shore 2 published installs
Châteauguay
Saint-Basile-le-Grand
North Shore 3 published installs
Sainte-Marthe-sur-le-Lac3
Montérégie and Vaudreuil 36 published installs
Chambly3
McMasterville3
Mont-Saint-Hilaire3
Beloeil2
Carignan2
Otterburn Park2
Saint-Blaise-sur-Richelieu2
Saint-Valentin2
Venise-en-Québec2
Calixa-Lavallée
Clarenceville
Henryville
Lacolle
Mont-Saint-Grégoire
Noyan
Saint-Alexandre
Saint-Charles-sur-Richelieu
Saint-Jean-sur-Richelieu
Saint-Mathias-sur-Richelieu
Saint-Mathieu-de-Beloeil
Saint-Paul-de-l’Île-aux-Noix
Saint-Sébastien
Sainte-Anne-de-Sabrevois
Sainte-Brigide-d’Iberville
AirGreen’s Nos réalisations blog, as of Oct. 8, 2026: of 52 “Midea double and triple zones” articles, 52 name a place (municipality, borough, area or shore), and those are the ones counted here. One article = one published install.
16 · True or false?
Five common beliefs about multi-zones.
Answer, then read why.
AirGreen×MIDEAQuestion 1 / 5Score 0
“Each room of a multi-zone has its own setting.”
True. One head per room, each with its setpoint.
Midea Comfort Canada (mideacomfortna.ca).
“Any compressor takes six heads.”
False. Among our compressors, six ports means the 48,000 only. The 18,000 has 3, the 27,000 4, the 36,000 5.
AirGreen Midea28 multizone sheet, Midea combination and specification tables, p. 3.
“Hydro-Québec gives one LogisVert amount per head.”
False. A multi-zone counts as one system: the amount follows the compressor’s certified heat at -8 °C.
Hydro-Québec, LogisVert guide v1.10.
“If the heads exceed the compressor’s capacity, each one heats less.”
True. That is note 1 of Midea’s combination table.
AirGreen Midea28 multizone sheet, Midea combination and specification tables.
“A 12,000 head can replace a 9,000 in Midea’s table.”
True. Same cabinet, according to Midea: the 12,000 follows the 9,000’s combinations.
AirGreen Midea28 multizone sheet, Midea combination and specification tables.
0 / 5
Well done!
A question we did not cover? Ask us at the free estimate.
No question matches. Write to us or call 514 316-2973.
From 2 to 6 depending on the Midea28 compressor: 18,000 BTU/h (up to 3 heads), 27,000 (4), 36,000 (5) and 48,000 (6). Per Midea’s combination table, wall heads go from 6,000 to 24,000 BTU/h on the 18,000, up to 30,000 on the 27,000 and up to 36,000 on the 36,000 and 48,000.
Depending on the compressor: $2,400 (18,000), $3,600 (27,000), $4,560 (36,000) and $5,400 (48,000). Hydro-Québec counts the system once, whatever the number of heads.
The Extreme Heat compressors are on the NEEP cold-climate heat pump list, which publishes their maximum heat at -30 °C: from 10,000 BTU/h (18,000) to 24,600 BTU/h (48,000).
Those are the certified values: for example 30,000 BTU/h at -8 °C versus 27,000 at 8 °C for the 27,000 compressor. The variable-speed compressor speeds up when it gets colder. Real heat depends on the heads connected.
A multi-zone puts a single outdoor unit for several rooms and one LogisVert amount. Separate wall units each have their own outdoor unit and their own LogisVert amount. We compare both with you at the visit.
According to Midea, the system checks the wiring after installation and automatically matches refrigerant lines to the right wires, even if a port was swapped.
At Midea, Wi-Fi control of wall heads goes through an optional module, with the Midea SmartHome app. Our multi-zone product pages list it as optional. The quote says what is included.
For the first owner of a single-family home: 7 years on the compressor and 5 years on parts, or 12 years on both if the unit is registered within 60 days. Any other use: 5 years compressor, 1 year parts. Next owner: 5 and 5. Midea excludes labour and refrigerant.
AirGreen × MIDEAMIDEA PRO dealer2 to 6 roomsDown to -30 °COne LogisVert per systemUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen × MIDEAMIDEA PRO dealer2 to 6 roomsDown to -30 °COne LogisVert per systemUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen · Heating & cooling
Your Midea multi-zone, laid out with you and installed by AirGreen.
We come and see the rooms, pick the compressor and each head’s size with you, then you get a clear quote: the system, the AHRI number and the indicative LogisVert amount.
