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R-410A · while stocks last
GREE Free Match M Series · 4 rooms · Updated Oct. 27, 2026

GREE Free Match M Series heat pumps, 4 rooms. Three sizes, one cabinet. The 36,000 and the 42,000 give the same heat at −15 °C per NEEP: what sets them apart lies elsewhere.

3 M Series four-room systems, from 30,000 to 42,000 BTU/h, on R-410A. Three bedrooms and a living room, often over two floors. From the street, the 30,000, 36,000 and 42,000 look the same; the choice comes down to four numbers: heat at −15 °C and −30 °C, total line set and the LogisVert amount.

Choose among the three sizesWhat they shareBook my free estimate
3For four rooms, GREE Canada’s table keeps only the 30,000, 36,000 and 42,000 BTU/h. Only the 42,000 would take a fifth.
32,400 BTU/hThe most NEEP publishes at −15 °C for the 36,000 and the 42,000 alike. At that temperature, stepping up a size adds no heat.
1020 × 826 × 427Millimetres: one cabinet for all three four-room sizes, with the same printed sound, 63 dB(A), and the same airflow.
  • 3four-room systems on this page
  • 30,000–42,000BTU/h, rated
  • 3/3ENERGY STAR cold-climate designation, read by AHRI number
  • R-410Awhile stocks last; R-32 successor
AirGreen × GREEGREE Elite dealerFree Match M Series, four roomsThree sizes, one cabinet32,400 BTU/h at −15 °C, twiceMontréal, Laval, Longueuil, South Shore, North Shore
The four-room choice

30,000, 36,000 or 42,000: three answers are enough.

The three sizes share the cabinet, the sound, the length per line set and the pre-charge. That leaves heat, total line set and a possible fifth room. Answer: the page gives the smallest size that fits, and why.

Three answers, one size

The heat thresholds are the maximums NEEP publishes at −15 °C for the 30,000 and the 36,000. Your real need is calculated at the visit; here, it shows where each size stops.

Heat: NEEP, non-ducted configurations, read Oct. 26, 2026. Line sets and unit count: GREE Canada, document 062024. LogisVert amounts are indicative, taken from Hydro-Québec’s list of Oct. 27, 2026.

One cabinet, three sizes

What the three sizes share, then what sets them apart.

Five values identical from one size to the next: those settle nothing. The table that follows keeps only the figures that change.

1020 × 826 × 427 mmThe same cabinet for the 30,000, 36,000 and 42,000.GREE Canada 062024
63 dB(A)The same printed sound level, without a measuring distance.GREE Canada 062024
5800 m³/hThe same outdoor airflow, 3413 CFM.GREE Canada 062024
25 m · 25 mThe same maximum pipe length and the same height difference.GREE Canada 062024
40 mThe same factory pre-charged length.Dettson X61019
What changes30,00036,00042,000
Maximum at −15 °C (NEEP)22,80032,40032,400
Maximum at −30 °C (NEEP)20,02024,02024,500
Total line-set length80 m80 m100 m
Indoor units allowed2 to 42 to 42 to 5
Rated at −8.3 °C, basis of the amount27,20030,80035,600
LogisVert, list of Oct. 27, 2026$3,264$3,696$4,272
Net weight · R-410A charge69.0 kg · 3.0 kg78.0 kg · 3.7 kg79.0 kg · 3.8 kg
MCA · maximum protection23 A · 35 A29 A · 45 A29 A · 45 A
Heat for each room, four unitsnot publishednot publishednot published

GREE Canada, document 062024; NEEP read Oct. 26, 2026, non-ducted configurations (AHRI 208786091, 208786087 and 208786088); Hydro-Québec, list of Oct. 27, 2026. GREE Canada does not publish its four-unit combination table for the M Series: it is kept for dealers.

Fewer rooms, or one more? The other M Series pages, and the four-zone page for every line:

M Series · 2 roomsM Series · 3 roomsM Series · 5 roomsFour zones: every line
AirGreen × GREE

Four rooms on an M Series: the size is chosen on figures, not on looks.

The three cabinets are identical; the house decides. AirGreen calculates its heat, adds up the four line sets and chooses between the 30,000, the 36,000 and the 42,000.

GREE

What GREE brings

  • Four rooms on three sizesGREE Canada allows four units on the 30,000 and 36,000, and up to five on the 42,000.
  • Four indoor unit familiesVITA wall units, floor consoles, ceiling cassettes and slim ducts, per GREE Canada.
AirGreen

What AirGreen brings

  • GREE Elite dealerGREE training completed, priority access to original parts.
  • Free estimateHome estimate: a heat-loss calculation and a survey of the four line sets, then one size proposed.
  • RBQ 5645-9605-01Licences 15.8, 15.10 and 16. Gas and oil work is done by a licensed partner.

The result: the smallest of the three sizes that heats your four rooms, installed by AirGreen.

Choose among the three sizesBook my free estimate
The GREE shop

The 30,000, 36,000 or 42,000: the 3 four-room systems.

The sheets carry the non-ducted AHRI number; with ducted units it changes (see the questions below). The choice between the three sizes is at the top of the page.

GREE
Know before you buy

Four line sets, two temperatures: this page’s tools.

Two tools set to four M Series rooms: lengths against GREE Canada’s limits, and NEEP-certified heat.

Four lengths: 80 m or 100 m in total?

Enter each line set’s length. On the 30,000 and 36,000, the 80 m total limit binds before the 25 m per-room limit; on the 42,000, there are 100 m. Dettson pre-charges all three sizes for 40 m.

Technician’s corner

Four rooms: the circuit, the charge, the weight.

The circuit

The 30,000 needs a 23 A MCA and a 35 A maximum protection; the 36,000 and 42,000, 29 A and 45 A. One 208-230 V supply for the outdoor unit and its four units.

GREE Canada 062024

Charge and pre-charge

3.0 kg of R-410A on the 30,000, 3.7 kg on the 36,000 and 3.8 kg on the 42,000, pre-charged for the same 40 m of line set per Dettson. For the metres after that, no amount is published.

GREE Canada 062024 · Dettson X61019

The weight and the pan

69.0, 78.0 and 79.0 kg net: 9 kg separate the 30,000 from the 36,000, and only 1 kg the 36,000 from the 42,000. Each has a 96 W base-pan heater, per NEEP; it switches on when it is below 1 °C outside, and at every defrost.

GREE Canada 062024 · NEEP
Did you know?

Six cards to tell the 30,000, 36,000 and 42,000 apart.

LogisVert · Hydro-Québec

Four rooms: $3,264, $3,696 or $4,272.

$3,26430,000: 27,200 BTU/h rated at −8 °C, times $120 per 1,000.
$3,69636,000: on 30,800 BTU/h at −8 °C; same heat as the 42,000 at −15 °C.
$4,27242,000: on 35,600 BTU/h at −8 °C, the only one of the three that would take a fifth room.
$4,32036,000 Free Match M R32, for comparison: NEEP certifies it at 36,000 BTU/h at −8 °C and at −15 °C alike.

Figures from Hydro-Québec’s list of Oct. 27, 2026, for guidance; only Hydro-Québec sets the amount, once it receives the application. One amount per system, whatever the number of rooms. The federal grant ($2,500 / $5,000) no longer stacks on top: Natural Resources Canada closed that program, whose deadline was Sept. 30, 2025.

Questions

Four rooms on one cabinet: the questions that come up.

How many M Series sizes take four units?
Three, per GREE Canada: the 30,000 and 36,000 (2 to 4 indoor units) and the 42,000 (2 to 5). With four rooms, the 30,000 and 36,000 are at their maximum; only the 42,000 would take a fifth unit.
36,000 or 42,000 for four rooms?
NEEP gives both 32,400 BTU/h maximum at −15 °C; at −30 °C, 24,500 for the 42,000 against 24,020. The 42,000 adds 20 m of total line set (100 m against 80), a possible fifth unit and $576 from LogisVert ($4,272 against $3,696), for 1.0 kg more and the same 29 A and 45 A circuit.
Why does the 36,000 heat more at −15 °C than at −8 °C?
That is how ENERGY STAR and NEEP publish its rated points: 30,800 BTU/h at −8.3 °C and 32,400 at −15 °C. Its certified maximum at −8.3 °C is 37,720 BTU/h. We show the certified values as published; LogisVert is calculated on the 30,800.
How much line set for four rooms?
On all three sizes, 25 m at most for each line set and 25 m of height. In total, 80 m on the 30,000 and 36,000, 100 m on the 42,000. Dettson pre-charges all three for 40 m, half the 80 m of the 30,000 and 36,000.
What does the R-32 version change for four rooms?
Per NEEP, the 30,000 Free Match M R32 gives 27,000 BTU/h at −15 °C against 22,800, and the 36,000 gives 36,000 against 32,400. Hydro-Québec follows rated heat at −8 °C: $3,360 against $3,264 at 30,000, $4,320 against $3,696 at 36,000. Indicative amounts, list of Oct. 27, 2026.
Is an R-410A M Series still eligible for LogisVert?
Yes, on the list of Oct. 27, 2026: ENERGY STAR lists all three four-room sizes as cold climate, certified June 13, 2026, and Hydro-Québec gives them $3,264, $3,696 and $4,272 in the non-ducted configuration. The AHRI numbers change with ducted units; we confirm your system’s number before you apply.
AirGreen

Three sizes that look alike: we show you which one your house calls for.

Free estimate at home. Montréal, Laval, Longueuil, South Shore and North Shore.

Contact us514-316-2973
GREE Elite dealerGREE training completed, priority access to original parts.
RBQ 5645-9605-01Licences 15.8, 15.10 and 16.
AHRI on every product pageThis page shows a LogisVert amount only when it matches Hydro-Québec’s list of Oct. 27, 2026.
Sources

Capacities and amounts: indicative, to be confirmed in the quote. Tool calculations: AirGreen, from the published values above. Page updated Oct. 27, 2026; NEEP records, ENERGY STAR and the LogisVert list checked again that day.