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R-410A · while stocks last
GREE Free Match M Series · 5 rooms · Updated Oct. 27, 2026

GREE Free Match M Series heat pumps, 5 rooms. Only one M Series takes five units: the GWHD(42)ND3MO. Do your five line sets and your heights fit its limits?

One M Series five-room system: the 42,000, on R-410A. Bedrooms, living area, basement or office on a single outdoor unit. Before heat and price, the question is physical: five line sets and two heights have to fit GREE Canada’s limits.

Test my five line setsDucted or not?Book my free estimate
2 to 5Indoor units allowed on the GWHD(42)ND3MO, per GREE Canada. Every other M Series size stops at four or fewer.
36,000 BTU/hThe rated cooling of the “42,000” at 35 °C, per GREE Canada and NEEP; NEEP gives it 42,400 at most at 27.8 °C. In heating, 40,000 at 8.3 °C: the “42” names the size.
$3,888LogisVert if all five units are ducted (AHRI 208786096); with no ducted unit, $4,272 (208786088). Both amounts are indicative (Hydro-Québec list, Oct. 27, 2026).
  • 1system on this page
  • 208786088non-ducted AHRI number, on the product sheet
  • 1/1ENERGY STAR cold climate, AHRI 208786088
  • R-410A3.8 kg from the factory; sold while stocks last
AirGreen × GREEGREE Elite dealerFree Match M Series, five roomsOne size only: the 42,000Two AHRI numbers, two amountsMontréal, Laval, Longueuil, South Shore, North Shore
The five-room test

Five line sets on a GWHD(42)ND3MO: do they fit?

Five lengths, two heights: the test checks them against the limits GREE Canada publishes for the 42,000, then against the length Dettson pre-charges at the factory.

Your measurements against the 42,000’s limits

Enter the line-set length to each room, then the two heights, measured or estimated. Each line passes or not; the last one says whether the pre-charge is enough.

Ducted, wall or a mix

The same outdoor unit, two AHRI numbers, two amounts.

With ducted units everywhere, the 42,000 is rated 32,400 BTU/h at −8.3 °C instead of 35,600; at −15 °C, both configurations give the same heat. It is the LogisVert amount that moves.

Ducted or not: the AHRI number changes

Hydro-Québec pays according to the system’s AHRI number. For the 42,000, GREE Canada prints two. Pick the type of your five indoor units.

NEEP and ENERGY STAR read Oct. 26, 2026; Hydro-Québec, list dated Oct. 27, 2026; AHRI numbers: GREE Canada, document 062024 (“without / with duct”).

Fewer than five rooms? The other M Series pages, or every five-zone GREE line, R-32 included:

M Series · 2 roomsM Series · 3 roomsM Series · 4 roomsFive zones: every line
AirGreen × GREE

Five rooms on a 42,000: we measure everything before proposing it.

Only one M Series size goes up to five units; what remains is checking that your house fits it. AirGreen surveys the five line sets and the heights, calculates each room’s heat and checks the configuration’s AHRI number.

GREE

What GREE brings

  • Five zones on one unitGREE Canada describes the M Series as powering up to five indoor units with one outdoor unit.
  • One circuitFor the whole system, five units included, GREE Canada prints a 29 A MCA and a 45 A maximum protection.
  • Common line sizesSuction 9.52 mm (3/8 in) and liquid 6.35 mm (1/4 in), per GREE Canada.
AirGreen

What AirGreen brings

  • GREE Elite dealerGREE training completed, priority access to original parts.
  • Free estimateBefore the quote: five lengths measured, two heights, and the right AHRI number for Hydro-Québec.
  • RBQ 5645-9605-01Licences 15.8, 15.10 and 16. Gas and oil work is done by a licensed partner.

The result: five rooms on a single M Series outdoor unit, within GREE Canada’s limits, installed by a GREE Elite dealer.

Test my five line setsBook my free estimate
The GREE shop

The five-room GWHD(42)ND3MO, for sale right below.

The product sheet gives the non-ducted AHRI number, 208786088. With ducted units everywhere, the number and the amount change: see above.

GREE
Know before you buy

In deep cold: the heat the 42,000 keeps.

Line sets are checked at the top of the page; here, NEEP-certified heat, from 8.3 °C to −30 °C.

The heat the five rooms share, from 8.3 °C to −30 °C.

The bars show the capacities NEEP publishes for AHRI 208786088, for the whole system. The full record, minimum and power input included, follows the tools.

The GREE multi-zone page explains the design temperature used for Montréal.

The full NEEP record

The 42,000 at every published temperature: minimum, rated, maximum.

These are the figures the electrician and the installer ask for: heat, COP and what the unit draws from the circuit at each point.

Outdoor temperatureMinimumRatedMaximumCOP rated · max.Power input
Heating at 8.3 °C (47 °F)8,87040,00043,2003.88 · 3.173.02 kW · 3.99 kW
Heating at −8.3 °C (17 °F)9,00035,60038,2002.38 · 2.304.38 kW · 4.87 kW
Heating at −15 °C (5 °F)9,00032,40032,4001.92 · 1.924.95 kW
Heating at −30 °C (−22 °F)8,000—24,500— · 1.50— · 4.79 kW
Cooling at 35 °C (95 °F)8,87036,00040,940——

NEEP, AHRI 208786088 (“Multizone All Non-Ducted”), read Oct. 26, 2026; capacities in BTU/h for the whole system, power at rated · at maximum. NEEP also records 81% capacity maintenance at −15 °C and a 96 W base-pan heater.

For the circuit rating, the unit’s nameplate prevails, not the power input.

Technician’s corner

The 42,000 on the job.

The cabinet

Cabinet 1020 × 826 × 427 mm; 79.0 kg net, 86.0 kg packed. Airflow 5800 m³/h (3413 CFM), 63 dB(A) printed without a measuring distance.

GREE Canada 062024

The charge

3.8 kg of R-410A from the factory, the largest M Series charge, pre-charged for 40 m of line set per Dettson. Beyond that, the amount per metre is published by neither GREE Canada nor Dettson.

GREE Canada 062024 · Dettson X61019

The operating ranges

Heating from −30 to 24 °C per GREE Canada and Dettson. In cooling, the two documents disagree for the same units: −18 to 48 °C at GREE Canada, −30 to 48 °C at Dettson.

GREE Canada 062024 · Dettson X61019
Did you know?

The 42,000 in six cards. Flip them.

LogisVert · Hydro-Québec

Five rooms, one amount: $4,272 or $3,888.

$4,272No ducted unit: AHRI 208786088, on 35,600 BTU/h at −8 °C.
$3,888Ducted units only: AHRI 208786096, on 32,400 BTU/h at −8 °C.
$5,34042,000 Free Match M R32, for comparison: on 44,500 BTU/h at −8 °C.
9 monthsThe time the LogisVert guide v1.10 gives to file the application.

Indicative amounts from the list dated Oct. 27, 2026: Hydro-Québec caps them at the pre-tax cost and confirms them when you apply. LogisVert pays for the system, not for each room; for a mix of ducted and wall units, the AHRI number is confirmed before you apply. Nothing to add on the federal side: the Canada Greener Homes Grant ($2,500 / $5,000) is closed, deadline Sept. 30, 2025.

Questions

Five rooms on the 42,000: the questions before you sign.

Which M Series system takes five rooms?
Only one: the GWHD(42)ND3MO, which GREE Canada lists at 2 to 5 indoor units. Every other M Series size stops at four or fewer. Without ducted units, it is certified under AHRI 208786088.
Is there enough heat for five rooms in January?
NEEP’s figures are for the whole system, not for each room: 32,400 BTU/h at −15 °C and up to 24,500 at −30 °C (full record above). GREE Canada does not publish its five-unit tables for the M Series, so we size each room at your home, from its heat loss.
How do five line sets fit the limits?
GREE Canada allows 100 m in total, 25 m of maximum length for one line set and 25 m of height. Five 25 m line sets would make 125 m, so the total decides. Dettson pre-charges 40 m; beyond that, the amount of R-410A to add is not published.
Does five rooms change the LogisVert amount?
One amount for the system, not one per room: $4,272 for AHRI 208786088 (no ducted unit) and $3,888 for AHRI 208786096 (ducted units only), on Hydro-Québec’s list dated Oct. 27, 2026. For a mix, GREE Canada prints no number. You apply within nine months; Hydro-Québec confirms the amount.
The brochure says “ENERGY STAR: NO”. Is it certified?
Yes, per the ENERGY STAR database read Oct. 26, 2026: AHRI 208786088 is listed there as cold climate and Most Efficient, certified June 13, 2026, and it is on the LogisVert list. GREE Canada’s brochure (document 062024) still prints “NO / NO”.
For five rooms, the M Series or the Free Match M R32?
On NEEP-certified figures, the R-32 gives 44,500 BTU/h rated at −8.3 °C against 35,600, 37,800 at −15 °C against 32,400 and 28,400 at −30 °C against 24,500. Hydro-Québec gives it $5,340 against $4,272. ENERGY STAR lists a GWP of 675 for its R-32, 2,088 for the M Series’ R-410A.
AirGreen

Five rooms on one unit: we measure the five line sets before proposing the 42,000.

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.