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Midea ceiling cassettes · updated October 8, 2026
Midea ceiling cassette: built into the ceiling, one-way or four-way.
The 4-way blows over nearly 360° and fits a drop ceiling; the 1-way, 13 1/4 in. wide, slips between joists. Midea outdoor heat pump, maximum heat at -30 °C published by the NEEP list.
No 1-way cassette at 48,000 BTU/h in our catalogue. This size exists as a 4-way cassette.
9combinations in our catalogue
6sizes, 9,000 to 48,000 BTU/h
-30 °Cheat published by the NEEP list
$5,280Highest LogisVert
AirGreen × MIDEAMIDEA PRO dealerBuilt into the ceilingHeat at -30 °C, NEEP listLogisVert checked by AHRIUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen × MIDEAMIDEA PRO dealerBuilt into the ceilingHeat at -30 °C, NEEP listLogisVert checked by AHRIUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore
01 · The types
Four-way or one-way: two ways into the ceiling.
The 4-way spreads air all around it, for large rooms and open areas. The 1-way blows to one side and slips between joists, where there is no drop ceiling.
MCD · R-454B
4-way cassette
Sizes
9,000 to 48,000 BTU/h
Height
8 1/8 to 11 1/4 in.
LogisVert
$1,200 to $5,280
4-way cassetteNearly 360° air discharge
Air leaves all around the cassette, evenly, without a direct cold draft, according to Midea.
4-way cassetteBuilt-in condensate pump
Condensate is pumped to the drain, which can exit left or right, according to Midea.
4-way cassetteTwo sizes
22 1/2 in. square from 9,000 to 18,000 BTU/h (23 5/8 in. opening), 32 5/8 in. from 24,000 to 48,000 (35 3/8 in. opening), according to Midea.
MCA · R-454B
1-way cassette
Sizes
9,000 to 18,000 BTU/h
Height
9 in.
LogisVert
$1,152 to $1,740
1-way cassetteBetween joists
13 1/4 in. wide by 50 1/4 in. long: Midea designed it for common joists and I-joists.
1-way cassettePanel that lowers
From the remote, the panel lowers to you to take the filter out, no ladder, according to Midea.
1-way cassetteHung or pushed in
It hangs from its brackets or slides between joists and screws to the beams, according to Midea.
Source: Midea “Four Way Cassette” and “One-Way Cassette” brochures (Midea Comfort, undated editions, October 2025 files).
02 · How it works
In the ceiling, heat arrives from above.
Tap a step, switch to cooling, or compare the 4-way and the 1-way.
MIDEA AirGreen diagram
AirGreen principle diagram: unit positions and line lengths vary from house to house.
03 · The sizes
9 combinations, all ENERGY STAR cold climate.
Certified heat, efficiency, indoor unit size and LogisVert amount for each size. Tap a size to open its product page.
ENERGY STAR (heat at -8 °C, maximum at -15 °C, SEER2, HSPF2) and NEEP (maximum at -30 °C), data by AHRI number, Oct. 8, 2026. Size and indoor sound (silent to turbo mode): “Xtreme Heat” tables of Midea “Four Way Cassette” and “One-Way Cassette” brochures (Midea Comfort, undated editions, October 2025 files). LogisVert: Hydro-Québec formula; units below 12,000 BTU/h nominal do not qualify.
04 · In deep cold
At -30 °C, the NEEP list still gives 30,400 BTU/h for the 48,000 BTU/h 4-way cassette.
Certified heat at 8 °C and -8 °C, maximum at -15 °C and -30 °C, for each size. Bars scaled per size.
Type
9,000 BTU/h
MCDHU-H09B-2A
4,200 BTU/hmaximum heat at -30 °C (NEEP)
8 °C10,000 BTU/h
-8 °C9,700 BTU/h
-15 °C11,000 BTU/h
-30 °C4,200 BTU/h
12,000 BTU/h
MCDHU-H12B-2A
4,300 BTU/hmaximum heat at -30 °C (NEEP)
8 °C12,000 BTU/h
-8 °C10,000 BTU/h
-15 °C11,500 BTU/h
-30 °C4,300 BTU/h
18,000 BTU/h
MCDHU-H18B-2A
8,100 BTU/hmaximum heat at -30 °C (NEEP)
8 °C19,000 BTU/h
-8 °C14,900 BTU/h
-15 °C17,000 BTU/h
-30 °C8,100 BTU/h
24,000 BTU/h
MCDHU-H24B-2A
9,500 BTU/hmaximum heat at -30 °C (NEEP)
8 °C25,000 BTU/h
-8 °C20,400 BTU/h
-15 °C23,800 BTU/h
-30 °C9,500 BTU/h
36,000 BTU/h
MCDHS-H36B-2A
19,200 BTU/hmaximum heat at -30 °C (NEEP)
8 °C37,000 BTU/h
-8 °C30,600 BTU/h
-15 °C37,000 BTU/h
-30 °C19,200 BTU/h
48,000 BTU/h
MCDHS-H48B-2A
30,400 BTU/hmaximum heat at -30 °C (NEEP)
8 °C53,000 BTU/h
-8 °C44,000 BTU/h
-15 °C47,500 BTU/h
-30 °C30,400 BTU/h
9,000 BTU/h
MCAHU-H09B-2A
5,100 BTU/hmaximum heat at -30 °C (NEEP)
8 °C10,900 BTU/h
-8 °C9,000 BTU/h
-15 °C10,600 BTU/h
-30 °C5,100 BTU/h
12,000 BTU/h
MCAHU-H12B-2A
5,100 BTU/hmaximum heat at -30 °C (NEEP)
8 °C12,500 BTU/h
-8 °C9,600 BTU/h
-15 °C11,500 BTU/h
-30 °C5,100 BTU/h
18,000 BTU/h
MCAHU-H18B-2A
9,500 BTU/hmaximum heat at -30 °C (NEEP)
8 °C20,000 BTU/h
-8 °C14,500 BTU/h
-15 °C17,500 BTU/h
-30 °C9,500 BTU/h
ENERGY STAR (8 °C, -8 °C, maximum at -15 °C) and NEEP (maximum at -30 °C), data by AHRI number, Oct. 8, 2026.
05 · 1 kWh, how much heat?
A heat pump does not make heat: it moves it.
Pick a model and a temperature: here is how many kWh of heat come out per kWh of electricity, from the NEEP list COPs, and what a kWh of heat costs at Rate D.
Model
Outside
1 kWh of electricity
Heat delivered× 2.44kWh of heat per kWh of electricity
Electric baseboard1.00
This heat pump2.44
Cost of one kWh of heat, Rate D
2.90 ¢1st tier (straight electric: 7.065 ¢)
4.57 ¢2nd tier (straight electric: 11.142 ¢)
At -8 °C, heat of 9,000 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.
06 · Hydro-Québec LogisVert
From $1,152 to $5,280 per unit.
The amount follows each combination’s certified heat at -8 °C. Tap a size to see the calculation and your application deadline. The 9,000 BTU/h units do not qualify: LogisVert requires at least 12,000 BTU/h nominal.
The amount follows the certified heat at -8 °C of the exact combination, hence the AHRI number on the quote.
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 · Your ceiling
Can your ceiling take a cassette?
Enter the clear space above the finished ceiling and the ceiling height: we show you the models that fit.
Your measurements
4-way cassette
4-way 9,000space: 10 3/4 in. · ceiling: over 2.3 m
4-way 12,000space: 10 3/4 in. · ceiling: over 2.3 m
4-way 18,000space: 10 3/4 in. · ceiling: over 2.3 m
4-way 24,000space: 9 in. · ceiling: over 2.3 m
4-way 36,000space: 10 3/4 in. · ceiling: over 2.3 m
4-way 48,000space: 12 1/4 in. · ceiling: over 2.3 m
1-way cassette
1-way 9,0009 in. body · ceiling: over 2.5 m
1-way 12,0009 in. body · ceiling: over 2.5 m
1-way 18,0009 in. body · ceiling: over 2.5 m
Midea “Four Way Cassette” (H space and clearances, p. 4) and “One-Way Cassette” (9 in. body height, ceiling over 2.5 m, p. 4 and 8) brochures. 2.3 m = 90 5/8 in.; 2.5 m = 98 7/16 in. Joists, ducts and the real location are checked at the visit.
08 · Sound, speed by speed
The sound and airflow of each cassette, speed by speed.
Pick a model: its five speeds, in decibels and cubic feet per minute, from Midea’s tables.
1-way
4-way
38Turbo341 CFM
38High294 CFM
36Medium259 CFM
33Low235 CFM
24Silent235 CFM
From 24 dB(A) and 235 CFM at silent to 38 dB(A) and 341 CFM at turbo.
41Turbo353 CFM
41High312 CFM
37Medium283 CFM
33Low247 CFM
24Silent177 CFM
From 24 dB(A) and 177 CFM at silent to 41 dB(A) and 353 CFM at turbo: a 17 dB gap, about 50 times less sound energy at silent.
44Turbo400 CFM
44High352 CFM
42Medium300 CFM
31Low207 CFM
26Silent207 CFM
From 26 dB(A) and 207 CFM at silent to 44 dB(A) and 400 CFM at turbo: an 18 dB gap, about 63 times less sound energy at silent.
43Turbo353 CFM
40High312 CFM
38Medium265 CFM
26Low183 CFM
24Silent147 CFM
From 24 dB(A) and 147 CFM at silent to 43 dB(A) and 353 CFM at turbo: a 19 dB gap, about 79 times less sound energy at silent.
46Turbo418 CFM
43High365 CFM
40Medium306 CFM
28Low194 CFM
26Silent147 CFM
From 26 dB(A) and 147 CFM at silent to 46 dB(A) and 418 CFM at turbo: a 20 dB gap, about 100 times less sound energy at silent.
48Turbo447 CFM
45High389 CFM
41Medium318 CFM
28Low194 CFM
24Silent147 CFM
From 24 dB(A) and 147 CFM at silent to 48 dB(A) and 447 CFM at turbo: a 24 dB gap, about 251 times less sound energy at silent.
49Turbo765 CFM
45High706 CFM
43Medium636 CFM
34Low547 CFM
34Silent547 CFM
From 34 dB(A) and 547 CFM at silent to 49 dB(A) and 765 CFM at turbo: a 15 dB gap, about 32 times less sound energy at silent.
52Turbo1,042 CFM
52High948 CFM
48Medium854 CFM
40Low753 CFM
38Silent659 CFM
From 38 dB(A) and 659 CFM at silent to 52 dB(A) and 1,042 CFM at turbo: a 14 dB gap, about 25 times less sound energy at silent.
52Turbo1,236 CFM
52High1,124 CFM
50Medium1,018 CFM
42Low801 CFM
38Silent689 CFM
From 38 dB(A) and 689 CFM at silent to 52 dB(A) and 1,236 CFM at turbo: a 14 dB gap, about 25 times less sound energy at silent.
Midea “One-Way Cassette” and “Four Way Cassette” brochures, “Xtreme Heat” tables (p. 8): indoor unit sound level and airflow at the five speeds, as printed; test conditions are not stated. Decibels are logarithmic: 10 dB less means ten times less sound energy. 1-way 9,000 cassette: the brochure prints 38 dB(A) at turbo, but 47 dB(A) for the same head in its other table; we show the figure as printed.
09 · What Midea puts inside
What Midea puts in the whole range.
The common features Midea states for its indoor units and their heat pumps.
The whole range
The whole rangeRefrigerant leak detection
If there is a leak, the compressor stops and the indoor fan runs to bring the R-454B in the room down to a safe level, according to Midea.
The whole rangeYour 24 V thermostat
On a replacement, existing piping, wiring and 24 V thermostat can be used with a Midea 24 V interface, according to Midea.
The whole rangeTemperature and humidity
The system controls temperature and humidity together, from 35% to 85% humidity, according to Midea. SmartHome app optional.
Source: Midea “Four Way Cassette” and “One-Way Cassette” brochures (Midea Comfort, undated editions, October 2025 files).
10 · Did you know?
Eight things to know about Midea cassettes.
Tap a card to flip it: each number’s source is on the back.
AirGreen×MIDEA1 / 8
014-way10 3/4in.The space needed above the ceilingTap for the explanation
01
According to Midea, the 4-way needs above the finished ceiling more than 10 3/4 in. from 9,000 to 18,000, 9 in. at 24,000, 10 3/4 in. at 36,000 and 12 1/4 in. at 48,000.
Midea “Four Way Cassette” brochure, p. 4.
024-way4mWhere it goesTap for the explanation
02
According to Midea, measuring from the center of the cassette: more than 1.5 m from a light fixture, more than 2 m from a ventilator, more than 4 m from another cassette. Allow at least 1 m between the panel and each wall (Midea recommends more for service), and a ceiling more than 2.3 m above the floor.
Midea “Four Way Cassette” brochure, p. 4.
031-way2.5mA slightly higher ceilingTap for the explanation
03
On Midea’s drawings, the 1-way cassette goes in with more than 2.5 m (98 7/16 in.) between ceiling and floor, and at least 500 mm between each end and the wall.
Midea “One-Way Cassette” brochure, p. 4.
044-way1%A fan set to the percentTap for the explanation
04
The 4-way’s fan speed adjusts from 0 to 100%, in 1% steps, according to Midea.
Midea “Four Way Cassette” brochure, p. 2.
05Setpoint0.5°CSet to the half degreeTap for the explanation
05
The setpoint adjusts in 0.5 °C steps on the 4-way, and 1 °C on the 1-way, according to Midea.
Midea “Four Way Cassette” brochure ; Midea “One-Way Cassette” brochure.
064-way 48,00012.96pt/hThe water it pulls from the airTap for the explanation
06
Per our product data, the 4-way 48,000 removes up to 12.96 pints of water per hour in cooling; the 36,000, 9.09; the 1-way 18,000, 4.33.
Our airgreen.ca product pages, Oct. 8, 2026.
074-way 9,000110%Still above its rating at -15 °CTap for the explanation
07
At -15 °C, the 4-way 9,000 can still give up to 11,000 BTU/h, above its rated 10,000 BTU/h. The 24,000 has the best COP at -15 °C among cassettes, 2.23.
NEEP list, data by AHRI number, Oct. 8, 2026 ; ENERGY STAR, data by AHRI number, Oct. 8, 2026.
084-way 48,00057%What is left at -30 °CTap for the explanation
08
At -30 °C, the 4-way 48,000 keeps 30,400 BTU/h, 57% of its rated 8 °C heat, with a COP of 1.52.
NEEP list, data by AHRI number, Oct. 8, 2026.
Swipe to see the other cards, tap a card to flip it.
11 · Midea warranty
12 years on parts and compressor, if the unit is registered in time.
Midea’s limited warranty 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.
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.
No question matches. Write to us or call 514 316-2973.
The 4-way blows all around and fits a drop ceiling: 9,000 to 48,000 BTU/h in our catalogue. The 1-way blows to one side and slips between joists, 13 1/4 in. wide: 9,000 to 18,000 BTU/h.
For the 4-way, you need a 23 5/8 in. opening (9,000 to 18,000 BTU/h) or 35 3/8 in. (24,000 to 48,000) and room above, according to Midea. The 1-way fits between joists. We measure at the visit.
$1,152 to $5,280 depending on size, calculated by Hydro-Québec on certified heat at -8 °C ($120 per 1,000 BTU/h, ENERGY STAR cold climate). The 9,000 BTU/h units do not qualify.
The NEEP list publishes a maximum heat at -30 °C for every combination on this page: 4,200 BTU/h to 30,400 BTU/h depending on size.
According to Midea, on a replacement, existing piping, wiring and 24 V thermostat can be used with a Midea 24 V interface. Otherwise: remote, wall controller or optional SmartHome app.
Our product pages list it as optional, with the Midea SmartHome app. 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 dealerBuilt into the ceilingHeat at -30 °C, NEEP listLogisVert checked by AHRIUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen × MIDEAMIDEA PRO dealerBuilt into the ceilingHeat at -30 °C, NEEP listLogisVert checked by AHRIUp to 12 years on parts and compressorMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen · Heating & cooling
Your Midea unit, picked with you and installed by AirGreen.
We come and see the room, pick the type and size with you, then you get a clear quote: the combination, the AHRI number and the indicative LogisVert amount.
