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GREE four-zone · 4 rooms · Updated Oct. 27, 2026

GREE four-zone heat pumps. Four rooms on a 30,000, 36,000 or 42,000 outdoor unit. Which one gives every room its full heat, and can four line sets reach it?

22 GREE four-room systems, from 30,000 to 42,000 BTU/h, in 8 lines. Three bedrooms and the basement, or two rooms on each floor. With four indoor units, two questions settle the size: the share of heat each room gets, and how far the four line sets run to the outdoor unit.

Test my four roomsCompare the systemsBook my free estimate
7,500 BTU/hFor each of four 9,000 units on the 30,000 Free Match M R32, in GREE Canada’s table. On the 36,000 they get their full 9,000.
10,500 BTU/hFour 12,000 units on the 42,000, the largest size offered: even it has to share. They get 9,000 each on the 36,000; the 30,000’s table does not list them.
100 mFour 25 m line sets, the limit to the farthest indoor unit: all the 42,000 allows. On the 30,000 and 36,000, the 80 m allowed come to 20 m per room on average.
  • 22systems listed on this page
  • 8GREE lines on this page
  • 30,000–42,000BTU/h, nominal
  • 9/22ENERGY STAR cold climate, checked by AHRI number
AirGreen × GREEGREE Elite dealerFour rooms, four line sets30,000, 36,000 or 42,000: each room’s share31 GREE four-room systems on our installations blogMontréal, Laval, Longueuil, South Shore, North Shore
Four rooms, four line sets

Each room’s heat first, then every line set.

Pick the size of your four indoor units: GREE Canada prints what each one gets on the 30,000, 36,000 and 42,000. Then enter your line-set lengths: each size’s limits tell you whether the outdoor unit can stay where you picture it.

Four rooms, three sizes

One list per room. The three columns give each unit’s heat on the 30,000, 36,000 and 42,000; a green frame means every room keeps its full rating.

Four line sets, three limits

Add up your four lengths, note the longest one, then the height gap between the outdoor unit and the highest or lowest room. The verdict covers all three sizes at once.

Three sizes side by side

30,000, 36,000 or 42,000: what each size changes for four rooms.

The same line in three sizes, row by row: combinations, each room’s share, cold, amount and line sets. The cells in bold are those where every room keeps its full rating.

Free Match M R3230,00036,00042,000
Four-unit combinations101723
Four 9,000 units, per room7,5009,0009,000
Four 12,000 units, per roomnot in the table9,00010,500
9,000 + 9,000 + 12,000 + 12,0006,429 · 6,429 · 8,571 · 8,5717,714 · 7,714 · 10,286 · 10,2869,000 · 9,000 · 12,000 · 12,000
The largest unit, with three 9,000s18,000 gets 12,00024,000 gets 16,94124,000 gets 19,765
Max. at −15 °C, whole system (NEEP)27,00036,00037,800
Max. at −30 °C, whole system (NEEP)21,00026,20028,400
LogisVert (list of Oct. 27, 2026)$3,360$4,320$5,340
Total length allowed80 m80 m100 m
Four line sets, on average our arithmetic20 m20 m25 m
Factory pre-charged40 m40 m50 m
R-32 to add at the full length allowed our arithmetic800 g800 g1,000 g

Based on GREE Canada’s document No. 092026 and its combination tables, per-room heat at rated conditions. Pre-charged length and 20 g/m: brochure X610068B, Wolseley network. NEEP capacities read Oct. 26, 2026 and amounts from the LogisVert list of Oct. 27, 2026, the same for the MULTI R32 of the same size. “On average”: the total length divided by four, without exceeding the 25 m allowed to the farthest indoor unit.

The largest combination at full rating

On the 42,000, it is 9 + 9 + 12 + 12: 42,000 BTU/h of indoor units for 42,000 outside, and every room keeps its size. On the 36,000, it is 9 + 9 + 9 + 9. On the 30,000, no combination of 9,000 units or larger gets there.

Four-zone lines

Eight lines on this page. GREE documents four rooms from 30,000 for five of them.

Each card counts only the four-room systems on this page. The cold figures come from NEEP, by AHRI number, and the amount from the LogisVert list; the text says what sets the line apart when there are four rooms to heat.

R-32Current generation

Free Match M R32 (FreeMatch R32)

GWHD(30)ND6MO, GWHD(36)ND6MO, GWHD(42)ND6MO

  • −30 °Clowest point catalogued by NEEP
  • 37,800max. BTU/h at −15 °C (NEEP)
  • 44,500max. BTU/h at −8 °C (NEEP)

30,000 to 42,000 BTU/h · 3 systems

ENERGY STAR cold climate for every system

LogisVert up to $5,340 indicative

For four rooms, the only line GREE Canada gives figures for room by room: its table is the one the tool at the top of the page reads.

R-32Current generation

MULTI R32

MUL30HP230V1R32AO, MUL36HP230V1R32AO, MUL42HP230V1R32AO

  • −30 °Clowest point catalogued by NEEP
  • 37,800max. BTU/h at −15 °C (NEEP)
  • 44,500max. BTU/h at −8 °C (NEEP)

30,000 to 42,000 BTU/h · 3 systems

ENERGY STAR cold climate for every system

LogisVert up to $5,340 indicative

At every size, NEEP lists the same heat as for the Free Match M R32, and Hydro-Québec the same amount: $3,360, $4,320 and $5,340. Its documentation comes from GREE Comfort, in the United States.

R-410APrevious generation · while stocks last

Free Match M Series

GWHD(30)ND3MO, GWHD(36)ND3MO, GWHD(42)ND3MO

  • −30 °Clowest point catalogued by NEEP
  • 32,400max. BTU/h at −15 °C (NEEP)
  • 38,200max. BTU/h at −8 °C (NEEP)

30,000 to 42,000 BTU/h · 3 systems

ENERGY STAR cold climate for every system

LogisVert up to $4,272 indicative

On R-410A, its 30,000 gets 22,800 BTU/h at −15 °C from NEEP, against 27,000 for the two R-32 lines of the same size. LogisVert: $3,264 to $4,272.

This line, 4 rooms
R-410APrevious generation · while stocks last

Multi GEN2

MULTI30HP230V1EO, MULTI36HP230V1EO, MULTI42HP230V1EO

  • −30 °Clowest point catalogued by NEEP
  • 32,400max. BTU/h at −15 °C (NEEP)
  • 38,200max. BTU/h at −8 °C (NEEP)

30,000 to 42,000 BTU/h · 3 systems

ENERGY STAR, without the cold-climate designation

LogisVert up to $1,780 indicative

LogisVert pays it the reduced rate of $50 per 1,000 BTU/h at all three sizes: $1,360, $1,540 and $1,780. None has ENERGY STAR’s cold-climate designation.

R-410APrevious generation · while stocks last

Free Match Extreme

GWHD(36)ND3J/O, GWHD(42)ND3J/O

  • nonelowest point catalogued by NEEP
  • nonemax. BTU/h at −15 °C (NEEP)
  • nonemax. BTU/h at −8 °C (NEEP)

36,000 to 42,000 BTU/h · 2 systems

No ENERGY STAR record found for these AHRI numbers

Off NEEP and ENERGY STAR since October 2026, it no longer has a LogisVert amount. For four rooms, its smallest size is the 36,000.

R-410APrevious generation · while stocks last

Multi+ Ultra

MULTIU36HP230V1DO, MULTIU42HP230V1DO

  • nonelowest point catalogued by NEEP
  • nonemax. BTU/h at −15 °C (NEEP)
  • nonemax. BTU/h at −8 °C (NEEP)

36,000 to 42,000 BTU/h · 2 systems

No ENERGY STAR record found for these AHRI numbers

Off NEEP, ENERGY STAR and the LogisVert list since October 2026. Its four-unit combinations follow the 36,000 and 42,000 Multi GEN2 lists.

R-410APrevious generation · while stocks last

Free Match (first generation)

GWHD(30)ND3GO, GWHD(36)ND3GO, GWHD(42)ND3EO

  • nonelowest point catalogued by NEEP
  • nonemax. BTU/h at −15 °C (NEEP)
  • nonemax. BTU/h at −8 °C (NEEP)

30,000 to 42,000 BTU/h · 3 systems

No ENERGY STAR record found for these AHRI numbers

Three sizes offered here for four rooms, none documented: no public GREE table, no NEEP record, no LogisVert amount.

R-410APrevious generation · while stocks last

Multi21+

MULTI30HP230V1CO, MULTI36HP230V1CO, MULTI42HP230V1CO

  • nonelowest point catalogued by NEEP
  • nonemax. BTU/h at −15 °C (NEEP)
  • nonemax. BTU/h at −8 °C (NEEP)

30,000 to 42,000 BTU/h · 3 systems

No ENERGY STAR record found for these AHRI numbers

Neither on NEEP nor on the LogisVert list. For four line sets, GREE Comfort allows it 230 ft in total at 30,000 and 246 ft at 36,000 and 42,000, with 49 ft of height difference.

As of Oct. 26, 2026, 12 systems on this page have a NEEP record; 4 lost it in October (Free Match Extreme and Multi+ Ultra) and 6 are not on it (Multi21+ and first-generation Free Match). For two, three or five rooms, see the GREE multi-zone page.

The starting size

Four rooms from 30,000? Not in every line.

Five lines document four units from the 30,000; two have no 30,000 and start at 36,000. As for the combinations themselves, only the Free Match M R32 has a complete Canadian table; elsewhere you find US submittals, a list or a bare unit count.

LineFour rooms fromWhat GREE publishes for four units
Free Match M R32GREE Canada
30,000
2 to 4 units on the 30,000 and 36,000, 2 to 5 on the 42,000. For four units: 10, 17 and 23 combinations, each with the heat for every room.
MULTI R32GREE Comfort, USA
30,000
Its submittals print the heat per room for part of the combinations: four 9,000 units get 7,500 BTU/h on the 30,000, four 12,000 units get 9,000 on the 36,000, as in GREE Canada’s table.
Free Match M SeriesGREE Canada
30,000
2 to 4 units on the 30,000 and 36,000, 2 to 5 on the 42,000. The public documents stop there: no per-room heat.
Multi GEN2GREE Comfort, USA
30,000
A list that grows with the size: 4 four-unit combinations on the 30,000, 8 more on the 36,000, 7 more on the 42,000. No per-room heat.
Multi21+GREE Comfort, USA
30,000
“1 - 4” units on the 30,000, “1 - 5” on the 36,000 and 42,000; 3, 7 and 8 four-unit combinations. No per-room heat.
Multi+ UltraGREE Comfort, USA
36,000
No 30,000. Its submittals dated May 15, 2023 print each room’s heat for 12 four-unit combinations on the 36,000 and 19 on the 42,000, 9+9+9+9 included. Off NEEP as of Oct. 26, 2026.
Free Match ExtremeGREE Canada
36,000
No 30,000. 2 to 4 units on the 36,000, 2 to 5 on the 42,000, with no public combination table. Removed from NEEP in October 2026.
Free Match, 1st generationNo GREE document
Undocumented
Offered here in 30,000, 36,000 and 42,000 for four rooms; no public GREE document or NEEP record confirms it.

Documents read Oct. 26, 2026. “From”: the smallest size in the line whose GREE documentation allows four indoor units.

The four-room selector

The four-room systems, size by size, with NEEP figures to back them.

Filter by size, then sort. At every size, the two R-32 lines lead at −15 °C; the Multi+ Ultra, Free Match Extreme, Multi21+ and first-generation Free Match have no NEEP figure to compare.

Sort by

The cold figures are NEEP’s for the AHRI number on each product sheet (read Oct. 26, 2026) and apply to the whole system: the four units share them. A LogisVert amount appears only when it matches Hydro-Québec’s list of Oct. 27, 2026.

AirGreen × GREE

Four rooms on one GREE system, and the same team from the calculation to the installation.

GREE supplies the outdoor unit, the four indoor units and the table that says what each one gets. AirGreen calculates each room’s heat loss, routes the four line sets and installs it all.

GREE

What GREE brings

  • Four rooms from 30,000 BTU/hThe Free Match M R32 takes 2 to 4 units on the 30,000 and 36,000, up to 5 on the 42,000 (GREE Canada).
  • One table for all four roomsGREE Canada prints each unit’s heat, combination by combination: that is what guides the choice of size.
  • 25 m to each roomOn all three sizes, GREE Canada allows 25 m to the farthest indoor unit and 25 m of height difference.
AirGreen

What AirGreen brings

  • GREE Elite dealerGREE training completed, priority access to original parts.
  • Free estimateWe measure the four rooms, calculate their heat loss and measure each line set before picking the size.
  • 31 GREE four-room systemsOur installations blog shows 31 GREE multi-zone systems with four indoor units, photos included (count of Oct. 14, 2026).
  • RBQ 5645-9605-01Licences 15.8, 15.10 and 16. Gas and oil work is done by a licensed partner.

The result: four rooms that each get the heat planned for them, on a GREE system whose line sets stay within the maker’s limits, installed by a GREE Elite dealer.

Test my four roomsBook my free estimate
The GREE shop

The 22 four-room systems, from 30,000 to 42,000 BTU/h, right below.

Each product sheet carries the AHRI number NEEP and Hydro-Québec go by. Each room’s heat is in the tool at the top; the line-set limits, in the tabs further down.

GREE
Know before you buy

Four rooms: charge, limits, cold, sound.

Five tabs for four rooms, from the R-32 to add to the limits of seven lines. They start from dated documents; your four rooms, measured at your home, set the size.

One line set per room: how much R-32 to add?

Enter the length to each of the four rooms and pick the size. The tool checks the total and the longest run per GREE Canada, then counts the R-32 to add beyond the pre-charged length: 40 m on the 30,000 and 36,000, 50 m on the 42,000.

Technician’s corner

Four rooms: the numbers for the electrician and the installer.

The circuit, from one line to the next

At 30,000, the MCA is 23 A for the Free Match M R32, MULTI R32, M Series and Multi GEN2, and 20 A for the Multi21+. The heaviest circuits on the page belong to the Multi+ Ultra and Free Match Extreme: 36 A (36,000) and 38 A (42,000) of MCA, 60 A of maximum protection. The nameplate has the last word.

GREE Canada 092026 and 062024 · GREE Comfort

The charge, four line sets

The Free Match M R32 comes pre-charged for 40 m of line set (30,000 and 36,000) or 50 m (42,000); each extra metre takes 20 g of R-32. Four 20 m line sets therefore need 800 g more on the 30,000 or 36,000, but only 600 g on the 42,000, pre-charged for 10 m more.

GREE Canada 092026 · X610068B

The limit that binds with four

On the 30,000 and 36,000, four 25 m line sets would make 100 m: the 80 m total binds before the per-room limit. On the 42,000, both limits meet at 4 × 25 = 100 m. GREE Comfort lands on the same point for the 42,000 MULTI R32 and Multi GEN2: 4 × 82 ft = 328 ft, the total allowed.

GREE Canada 092026 · GREE Comfort

Height difference by line

25 m for the Free Match M R32 and M Series, 82 ft for the MULTI R32 and Multi GEN2, but 49 ft for the Multi+ Ultra and Multi21+, and 15 m for the Free Match Extreme. For a basement room with the outdoor unit on the roof, those last three have the least room to spare.

GREE Canada 092026 and 062024 · GREE Comfort
Did you know?

Six things to know about GREE four-zone heat pumps. Flip the cards.

LogisVert · Hydro-Québec

Four rooms, three sizes: LogisVert pays from $1,360 to $5,340.

$3,36030,000 Free Match M R32 or MULTI R32, the smallest R-32 size that takes four rooms. The M Series of the same size gets $3,264, $96 less.
$4,320The 36,000 on R-32: the first size where four 9,000 units each get their 9,000 BTU/h.
$5,340The 42,000 on R-32: the highest amount on this page, $1,980 more than the 30,000.
$1,36030,000 Multi GEN2: ENERGY STAR certifies it without the cold-climate mention, so LogisVert pays $50 per 1,000 BTU/h.

Hydro-Québec’s list of Oct. 27, 2026. These amounts are indicative: only Hydro-Québec sets the amount paid, once you have applied. Not on the list: the Multi+ Ultra and Free Match Extreme, removed in October 2026, the Multi21+ and the first-generation Free Match. Program rules: GREE multi-zone page.

Questions

What people ask us about GREE four-zone heat pumps.

What is the smallest outdoor unit for four rooms?
The 30,000 BTU/h for the Free Match M R32, MULTI R32, M Series, Multi GEN2 and Multi21+. The Multi+ Ultra and Free Match Extreme have no 30,000: for them, four rooms start at 36,000. The first-generation Free Match is offered here from 30,000, but we found no GREE document about it.
Can I put four 12,000 BTU/h units on one outdoor unit?
Not on the 30,000 Free Match M R32: GREE Canada’s table does not list 12 + 12 + 12 + 12 for it. On the 36,000, each unit gets 9,000 BTU/h; on the 42,000, 10,500. The 36,000 MULTI R32 submittal also prints 9,000 per room, and the 30,000 submittal has no such row.
Can one of the four rooms have a 24,000 unit?
Not on the 30,000, whose four-unit combinations stop at an 18,000 unit. On the 36,000 and 42,000, 9 + 9 + 9 + 24 is listed: the 24,000 unit gets 16,941 and 19,765 BTU/h, each of the other three 6,353 and 7,412.
How far can four line sets run?
On the Free Match M R32, 25 m at most to each room. The total is 80 m on the 30,000 and 36,000, 20 m per room on average, and 100 m on the 42,000, so four 25 m line sets. Beyond the 40 or 50 m pre-charged, 20 g of R-32 is added per metre. The Multi+ Ultra, Free Match Extreme and Multi21+ allow less in total.
How much does LogisVert pay for a four-room system?
Hydro-Québec’s list of Oct. 27, 2026 gives $3,360 to $5,340 for the Free Match M R32 and MULTI R32, from $3,264 to $4,272 for the M Series, from $1,360 to $1,780 for the Multi GEN2. The Multi+ Ultra and Free Match Extreme left the list in October 2026; the Multi21+ and first-generation Free Match are not on it. Hydro-Québec confirms the amount when you apply.
Do the Multi+ Ultra and Free Match Extreme take four rooms?
Yes, from 36,000 BTU/h, per GREE Comfort and GREE Canada. But since October 2026 neither is on NEEP, ENERGY STAR or the LogisVert list: no certified figure lets you compare their heat in deep cold with the other lines.
AirGreen

Four rooms? We calculate each one, measure the four line sets, then pick the size.

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.
31 GREE four-room systemsPublished with photos on our installations blog, counted on Oct. 14, 2026.
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.