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LENNOX · MERIT · VARIX · VARIX EXTREME · VARIX MINIThe LENNOX space at AirGreenSold and installed by AirGreen in Montréal, Laval, Longueuil, on the South Shore and the North Shore.
All of LENNOX
Updated October 28, 2026

Six LENNOX wall series. Three on R-32, three from an earlier generation.

The MWLD, MWPD and MWHD are the 4th LENNOX generation; the MHA, MLA and MPB are R-410A generations that many homes already have on the wall. Type the number on your nameplate: we tell you what it is, how cold it heats, its warranty, and the R-32 wall unit at the same size.

Decode my numberBook my free estimate
29wall units in our catalogue6 LENNOX series
12with an indicative LogisVert amountHydro-Québec list of Oct. 6, 2026
-30 °Cheating range of the MWLD and the MLALENNOX forms 211080 and 210861
2in 115 V (MHA)The only ones in our catalogue
The shop

The 29 wall units, right below

Six series, from 9,000 to 24,000 BTU/h. Each product page gives the AHRI number and, when the unit qualifies, the indicative LogisVert amount.

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01 · The decoder

Your LENNOX wall unit’s number, letter by letter

Each letter is read with the legend LENNOX prints in the series’ documents. Pick a model from our catalogue or type the one on your nameplate.

In red: the generation, the refrigerant and the voltage, the three letters that change most what you have on the wall.

MPB012S4S-1P

MMini-splitPHeat pumpB2nd generation0121 ton · 12,000 BTU/hSStandard efficiency4R-410ASOne circuit: single zone-11st revisionP208/230 V single phase
Heats down to (LENNOX)-25 °C (-13 °F)
Certified heat at -8.3 °C7,700 BTU/h
LENNOX warranty in Québec12 years parts and 12 years compressor, no registration, if installed on or after March 1, 2017
AHRI201796631
LogisVert, Oct. 6, 2026 listNo: not ENERGY STAR listed

The R-32 wall unit at the same size in our catalogue:

  • MWLD 12,000down to -30 °C · 10,600 BTU/h at -8.3 °C · LogisVert $1,272
  • MWPD 12,000down to -20.6 °C · 10,600 BTU/h at -8.3 °C · LogisVert $1,272
  • MWHD 12,000down to -20.6 °C · 10,900 BTU/h at -8.3 °C · LogisVert $545

The MPB series page · This model’s page

02 · Two generations

Six series side by side, with LENNOX’s numbers

Heating ranges from the LENNOX documents, warranties from certificates W900004-02 and EW900011-01, amounts from Hydro-Québec’s list of October 6, 2026.

SeriesGeneration · refrigerantHeats down toIn our catalogueLENNOX warranty in QuébecLogisVert (Oct. 6, 2026)
MWLD4th · R-32-30 °C (-22 °F)5 models12 years parts and compressor12,000 to 24,000: $1,272 to $2,640
MWPD4th · R-32-20.6 °C (-5 °F)5 models12 years parts and compressor12,000 to 24,000: $1,272 to $2,640
MWHD4th · R-32-20.6 °C (-5 °F)5 models10 years parts and compressor (installed since Nov. 11, 2025)12,000 to 24,000: $545 to $1,020 (standard rate)
MHA1st · R-410A-15 °C (5 °F)6 models7 years compressor, 5 years partsNo: not ENERGY STAR listed
MLA1st · R-410A-30 °C (-22 °F)4 models12 years parts and compressor (installed since March 1, 2017)No: not ENERGY STAR listed
MPB2nd · R-410A-25 °C (-13 °F)4 models12 years parts and compressor (installed since March 1, 2017)No: not ENERGY STAR listed

LENNOX warranties do not cover labour; the extended warranty stays with the original owner. LogisVert amounts are indicative: only Hydro-Québec confirms the assistance granted.

03 · Did you know

Three things the LENNOX documents say about wall units

A · B · D

LENNOX writes the generation into the number

In the LENNOX legend, one letter gives the generation: A for the 1st, B for the 2nd, D for the 4th. An MPB is a 2nd generation, an MWLD a 4th.

LENNOX, bulletin 210863, p. 2; form 211080, p. 2.
-15 · -25 · -30

Three older series, three floors

The MHA heats down to 5 °F (-15 °C), the MPB to -13 °F (-25 °C), the MLA to -22 °F (-30 °C). So “an old Lennox” says nothing about how much cold it handles.

LENNOX, bulletins 210901, 210863 and 210861.
Québec

In Québec, the extended warranty comes without registration

The LENNOX mini-split extended warranty certificate names Québec among the places where registration is not required: coverage applies automatically.

LENNOX, EW900011-01 (January 1, 2026).
04 · The closest sibling

Wall unit or floor console, at 12,000 BTU/h: the certified numbers

When the wall won’t take a wall head, the LENNOX floor console takes over. Here is what changes, rating by rating.

Wall unitMWLD 12,000
Floor consoleMFMD 12,000
Certified systemMWLD012 + MWMD012
Certified systemMMLD012 + MFMD012
AHRI216411306
AHRI216581329
PlacementHigh on the wall
PlacementOn the floor, under a window
Heats down to (LENNOX)-30 °C
Heats down to (LENNOX)-25 °C
Certified cooling12,000 BTU/h
Certified cooling10,200 BTU/h
Certified heat at -8.3 °C10,600 BTU/h
Certified heat at -8.3 °C7,600 BTU/h
SEER2 · HSPF224.0 · 10.5
SEER2 · HSPF221.0 · 9.5
LogisVert, Oct. 6, 2026 list$1,272
LogisVert, Oct. 6, 2026 listNot verified
LENNOX warranty in Québec12 years parts and compressor
LENNOX warranty in Québec12 years parts and compressor

Ratings: ENERGY STAR (Oct. 28, 2026); ranges: LENNOX forms 211080 and 211076. Pink rows are the differences. See the LENNOX floor consoles.

05 · Our installations

LENNOX wall units installed by AirGreen, from Laval to the Plateau

A LENNOX wall unit in ChomedeyRead the projectOn a flat roof in Rosemont–La Petite-PatrieRead the projectIn the Plateau-Mont-RoyalRead the projectIn Villeray–Saint-Michel–Parc-ExtensionRead the projectIn Chomedey, LavalRead the project
06 · Questions

What people ask us about LENNOX wall units

What is the difference between the R-32 and R-410A wall units?

The MWLD, MWPD and MWHD are the 4th generation of LENNOX wall units, on R-32 refrigerant. The MHA, MLA and MPB are earlier generations, on R-410A. On Hydro-Québec’s list of October 6, 2026, only R-32 units carried a LogisVert amount.

Where do I find the model number?

On the nameplate of the outdoor unit. Type it into the decoder above, with or without the dash; or send us a photo of the nameplate.

Which wall unit to heat a whole room in Montréal?

LENNOX gives the MWLD a heating range down to -30 °C; the MWPD and the MWHD stop at -20.6 °C. The size is decided at the visit, room by room.

Does my LENNOX wall unit qualify for LogisVert?

Of our 29 wall units, 12 carried an indicative amount on Hydro-Québec’s list of October 6, 2026, all on R-32 and at least 12,000 BTU/h. The guide has required ENERGY STAR listing since November 26, 2025. Only Hydro-Québec confirms the assistance granted.

Do the R-32 wall units have Wi-Fi?

Yes: the MWMD and MWHD wall heads have built-in Wi-Fi, and the wireless remote comes in the box.

Do you repair older LENNOX wall units?

Yes. See our LENNOX repair page.

Sold and installed by AirGreen

A LENNOX wall unit, chosen at the visit and installed by AirGreen.

We look at the room and what you already have on the wall, tell you which series and which size, and the quote carries the AHRI number and the indicative LogisVert amount when the unit qualifies.

Book my free estimate514 316-2973
RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16. Gas and oil: a licensed partner.
Free estimateAt your home, no obligation.
LogisVert on the quoteAHRI number and indicative amount when the unit qualifies.
Showroom1370 Joliot-Curie Street, Suite 712, Boucherville.

Hydro-Québec does not solicit anyone by phone or door to door for LogisVert. A call “from Hydro-Québec” selling a heat pump? Hang up.

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Sources checked October 28, 2026

  1. LENNOX, MWLD 211080 (August 2025), MWPD 211081 (December 2025), MWHD 211079 (August 2026) product specifications: model number legends, operating ranges.
  2. LENNOX, MHA 210901 (April 2020), MLA 210861 (May 2021), MPB 210863 (December 2020) bulletins: legends, ranges, AHRI ratings.
  3. LENNOX, “Old to New Mini-Split Models”, bulletin 211020 (July 2022); MMLD 211076 and MFMD 211086 specifications (December 2025).
  4. LENNOX, warranties W900004-02 (November 11, 2025) and EW900011-01 (January 1, 2026).
  5. ENERGY STAR, Certified Air-Source Heat Pumps (dataset w7cv-9xjt), updated October 28, 2026: AHRI 216411305 to 216411319, 216581329.
  6. Hydro-Québec, LogisVert residential participation guide, version 1.10, September 15, 2026; eligible heat pump list of October 6, 2026 (latest check).

LogisVert amounts are indicative: only Hydro-Québec confirms the assistance granted. Price on quote. Free in-home estimate.