Home » CANAIR "ADD-ON" Central Heat Pump | Installation in Greater Montreal & Montérégie
AirGreenCanAir, Fait pour le Québec
CANAIR · ADD-ON · 4CDH · CDHThe CANAIR add-on at AirGreenA CanAir heat pump added to your furnace, from 1.5 to 5 tons, sold and installed by AirGreen in Montreal, Laval, Longueuil, the South Shore and the North Shore.
CanAir warranty
CanAir · add-on central heat pump · updated October 8, 2026

CanAir add-on: we keep your furnace and add a heat pump

The CanAir outdoor unit pairs with a cased coil set on your furnace. The heat pump heats down to -30°C; the furnace takes over when needed. Two generations: 4CDH in R-454B and CDH in R-410A, from 1.5 to 5 tons.

See how it worksBook my free estimate
CanAir, Fait pour le Québec18 combinations
CanAir add-on heat pump and coil

Pick the generation, then the size:

Add-on 4CDH · 3 tons

$3,504

Amount depending on the coil, Hydro-Québec’s October 8, 2026 list.

CEB-36MX1721
cabinet 17-1/2 in · AHRI 216621492
$3,504Details
CEB-36MX2121
cabinet 21 in · AHRI 216621493
$3,504Details
18heat pump + coil combinations
-30°Cheating, minimum per CanAir
4 widthsof cabinet, from 14½ to 24½ in
$4,536highest checked LogisVert (4CDH 5 tons)
AirGreen × CANAIRAdd-onYour furnace stays in place4CDH in R-454B · CDH in R-410A1.5 to 5 tonsDown to -30°CSold and installed by AirGreenMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen × CANAIR

The heat pump comes from CanAir. Pairing it with your furnace is AirGreen.

CanAir supplies the heat pump, the coil and the warranty. AirGreen measures your furnace, picks the coil that fits it and installs everything.

CanAir, Fait pour le Québec

What the CANAIR add-on brings

  • Down to -30°CHeating from -30°C to 24°C for the 4CDH and CDH, per the brochures.
  • Cased coilsVertical upflow, downflow or horizontal installation, per the brochures.
  • Two generations4CDH in R-454B, CDH in R-410A.
  • 10 years on compressor and partsCanAir CDH and 4CDH base warranty, residential use.
AirGreen

What AirGreen brings

  • Sold and installed by AirGreenIn Montreal, Laval, Longueuil, the South Shore and the North Shore.
  • Free home estimateNo obligation. We choose the model and size with you.
  • LogisVert checkedBy AHRI number, on Hydro-Québec’s current list.
  • RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16.

The result: a CanAir heat pump on your furnace, with the right coil, installed by AirGreen.

See the coilsBook my free estimate
01 · How it works

Your furnace stays. The heat pump joins it.

The heat pump heats the house through your existing ducts. In deep cold or when needed, the furnace takes over.

Your furnacegas, oil or electricCanAir cased coilset on the furnacewarm air to your ductsCanAir outdoor unitrefrigerant lines
1
The CanAir outdoor unit

4CDH in R-454B or CDH in R-410A. It heats down to -30°C and cools in summer, per CanAir.

2
The coil on the furnace

A cased coil, set to match the airflow: vertical upflow, downflow or horizontal.

3
Your furnace

It stays in place, blows the air through your ducts and takes over when needed. We don’t touch the burner or the gas or oil supply.

02 · Switch-over point

Above the switch-over point, the heat pump. Below it, your furnace.

Slide the outdoor temperature, then the switch-over point: the drawing shows which unit heats. The control method is confirmed in the quote, based on your furnace and thermostat.

Who heats the house—
No published value

The CanAir 4CDH and CDH brochures give no switch-over point. We set it at installation, with you, based on your furnace and thermostat.

What the heat pump can do

The 4CDH and CDH heating ranges go down to -30°C, per their brochures. The switch-over is a choice of comfort, cost and output in deep cold, not an operating limit.

Heating ranges: CanAir 4CDH (July 18, 2025 revision) and CDH R-410A (February 20, 2025) brochures. AirGreen installs the heat pump and the coil; we do not touch the burner or the gas or oil supply.

03 · The coil

The coil cabinet has to line up with your furnace.

Four cabinet widths: 14½, 17½, 21 and 24½ in. We measure your furnace at the visit and pick the coil that fits it.

CoilGenerationCabinet W × D × H (in)Paired with
CEB-24MX14214CDH · R-454B14-1/2 × 21 × 181.5 tons, 2 tons
CEB-24MX17214CDH · R-454B17-1/2 × 21 × 181.5 tons, 2 tons
CEB-36MX14214CDH · R-454B14-1/2 × 21 × 23-1/22.5 tons
CEB-36MX17214CDH · R-454B17-1/2 × 21 × 23-1/22.5 tons, 3 tons
CEB-36MX21214CDH · R-454B21 × 21 × 242.5 tons, 3 tons
CEB-60MX21214CDH · R-454B21 × 21 × 284 tons, 5 tons
CEB-60MX24214CDH · R-454B24-1/2 × 21 × 285 tons
MAC-24HWDN1-MN0CDH · R-410A17-1/2 × 21 × 181.5 tons, 2 tons
MAC-36HWFN1-MCDH · R-410A21 × 21 × 242.5 tons, 3 tons
MAC-48HWFN1-MCDH · R-410A21 × 21 × 244 tons
MAC-60HWFN1-MCDH · R-410A24-1/2 × 21 × 285 tons

Dimensions: CanAir 4CDH (revised July 18, 2025) and CDH R-410A (February 20, 2025) brochures.

04 · Matching

Pick your furnace width: here are the coils in that width.

The coil cabinet sits on the furnace, on the supply side. We preferably pick it in the same width; the widths offered depend on the size. Tap a width to see each combination, its weight and its LogisVert amount.

Your furnace cabinet width:

7 combinations with a 21 in. wide cabinet

R-454B2.5 tons4CDH2030C21 + CEB-36MX212121 × 21 × 24 in. · 60 lb$3,000R-454B3 tons4CDH2036C21 + CEB-36MX212121 × 21 × 24 in. · 60 lb$3,504R-454B4 tons4CDH2048C21 + CEB-60MX212121 × 21 × 28 in. · 67 lb$4,128R-454B5 tons4CDH2060C21 + CEB-60MX212121 × 21 × 28 in. · 67 lb$4,536R-410A2.5 tonsCDH2030C21 + MAC-36HWFN1-M21 × 21 × 24 in. · 78 lb$2,712R-410A3 tonsCDH2036C21 + MAC-36HWFN1-M21 × 21 × 24 in. · 78 lb$3,960R-410A4 tonsCDH2048C21 + MAC-48HWFN1-M21 × 21 × 24 in. · 78 lbNo amount

Cased coil dimensions and weights: CanAir 4CDH (July 18, 2025 revision) and CDH R-410A (February 20, 2025) brochures. CanAir does not state what “14”, “17”, “21” and “24” mean in the CEB model; they follow the printed widths. The brochure prints 24½ in. for the CEB-24MX1421 paired with the 2-ton (14½ in. elsewhere) and different weights for the same coil depending on the size: we reproduce its weights, and the 14½ in. width. Amounts: Hydro-Québec list of Oct. 8, 2026.

05 · Two generations

4CDH in R-454B or CDH in R-410A.

Same principle, two refrigerants. The choice comes down to size, coil and grant.

R-454B

4CDH add-on + CEB coil

  • 12 combinations, from 1.5 to 5 tons.
  • All 12 are ENERGY STAR cold-climate certified.
  • Checked LogisVert: $1,824 to $4,536 depending on the combination.
  • Heating down to -30°C, per the 4CDH brochure.
R-410A

CDH add-on + MAC coil

  • 6 combinations, from 1.5 to 5 tons.
  • 1.5 to 3 tons: ENERGY STAR cold climate, checked LogisVert from $1,764 to $3,960.
  • 4 and 5 tons: not in ENERGY STAR or on Hydro-Québec’s list, no LogisVert amount.
  • Heating down to -30°C, per the CDH brochure.
06 · LogisVert, Hydro-Québec’s list

From $1,764 to $4,536 depending on the heat pump and coil.

One AHRI number per combination, one amount per number. On a gas or oil furnace, eligibility is confirmed with LogisVert; no grant on an off-grid (autonomous) network, and the coil must be inside the home’s insulated envelope. Hydro-Québec confirms the amount when you apply.

Size4CDH · R-454BCDH · R-410A
1.5 tons$1,824$1,764
2 tons$2,364$2,520
2.5 tons$2,880 to $3,000$2,712
3 tons$3,504$3,960
4 tons$4,128No amount
5 tons$4,320 to $4,536No amount

The amount depends on the heat pump + coil combination (one AHRI number per combination). Hydro-Québec’s list of October 8, 2026; $120 per 1,000 BTU/h at -8°C. Each coil’s detail is in the selector at the top of the page.

Application deadline
Apply no later than
—

The LogisVert guide (version 1.10, September 15, 2026) requires an ENERGY STAR certified heat pump, an outdoor unit of at least 12,000 BTU/h and an application within 9 months of installation. The grant never exceeds 100% of the cost before taxes.

07 · Add-on or central

It all depends on the furnace you have today.

Pick your current furnace: we show you the CanAir system that fits.

Your current furnace

The add-on. It keeps your furnace and adds a CanAir coil: the heat pump heats, the furnace takes over when needed. We install the heat pump and the coil; we don’t touch the burner or the gas or oil supply.

Add-onView
08 · Did you know

Eight things to know about the CanAir add-on.

From 99% at -20°C to the coil-only rule. Scroll through.

Did you know · CanAir99%

At -20°C, on the CDH side

“The Canair side discharge units have a heating capacity of up to 99% at -20°C,” per the CDH R-410A brochure, which does not state the reference value.

01/08
Did you know · AirGreen18

Combinations at AirGreen

12 in R-454B (4CDH + CEB) and 6 in R-410A (CDH + MAC). 16 have a LogisVert amount.

02/08
Did you know · CanAir4

Cabinet widths

14½, 17½, 21 and 24½ in. The widths offered depend on the size: at 4 tons, 21 in. only.

03/08
Did you know · CanAir7/8 in.

Bigger lines at 5 tons

With the CEB coils, the lines are 3/8 and 3/4 in. up to 4 tons, then 3/8 and 7/8 in. at 5 tons.

04/08
Did you know · AirGreen1 ≠ 2

A coil alone is not enough

LogisVert excludes replacing only a coil: the amount follows the heat pump and its coil, installed together.

05/08
Did you know · CanAir42 → 99 lb

Coil weights

From 42 lb for a CEB-24MX to 99 lb for the MAC-60HWFN1-M, cabinet included.

06/08
Did you know · AirGreen$4,536

The largest amount

4CDH 5-ton with the CEB-60MX2121 coil. With the CEB-60MX2421, same outdoor unit: $4,320.

07/08
Did you know · CanAir-30°C

Heats down to

The 4CDH and CDH heating ranges go down to -30°C, per their brochures.

08/08
09 · Glossary

Eight terms for add-on systems.

Tap a card: the definition, then the CanAir figure.

10 · CanAir warranty

Ten years on the compressor and parts.

The warranty comes from CanAir. The installation and the record of your dates are on us. Keep your maintenance proof: CanAir can ask for it.

10 years

on the compressor and on parts, for residential CDH and 4CDH systems

1 yr2 yr3 yr4 yr5 yr6 yr7 yr8 yr9 yr10 yr
Compressor
10 years
Parts
10 years

CanAir CDH and 4CDH base warranty (version 2026-02-23) and 2026-10-05 base warranty. Coverage starts at installation.

Labour

Coverage depends on the sale date. We confirm in writing what applies, in the quote.

Transfer

Transferable to the next owner during the initial term only.

Maintenance

Have the recommended maintenance done and keep your invoices and reports.

11 · Our CanAir projects

CanAir central heat pumps installed by AirGreen.

On the South Shore and in the Laurentians.

CanAir central heat pump in Sainte-Adèle
Dec. 9, 2025CanAir central heat pump in Sainte-Adèle
Another CanAir -30 central heat pump on the South Shore
Apr. 4, 2025Another CanAir -30 central heat pump on the South Shore
CanAir -30 central heat pump on the South Shore
Mar. 31, 2025CanAir -30 central heat pump on the South Shore
12 · Frequently asked questions

What people ask us about the CanAir add-on.

A central heat pump added to your existing furnace: the CanAir outdoor unit links to a coil set on the furnace. The heat pump heats, the furnace takes over when needed.

13 · Our check

The CanAir add-on, checked on October 8, 2026.

What we checked for this page, and where. LogisVert amounts remain indicative: Hydro-Québec confirms them when you apply.

AirGreenCanAir, Fait pour le Québec
  • 18 AHRI numbers checked against the LogisVert listHydro-Québec file of Oct. 8, 2026: 16 with an amount. The CDH 4- and 5-ton combinations offered here (MAC-48HWFN1-M, MAC-60HWFN1-M) are not on it.
  • 18 AHRI numbers searched in ENERGY STAR16 found, all certified cold climate (Oct. 8, 2026). The CDH 4- and 5-ton combinations are not listed.
  • CoilsCanAir 4CDH (July 18, 2025 revision, dealer copy) and CDH R-410A (February 20, 2025) brochures.
  • LogisVert rulesGuide 1.10: coil alone not eligible; no exclusion specific to gas or oil furnaces on the main grid. We confirm with LogisVert.
  • 18 product pagesEvery matching row leads to the right page.
AirGreen × CANAIRAdd-onYour furnace stays in place4CDH in R-454B · CDH in R-410A1.5 to 5 tonsDown to -30°CSold and installed by AirGreenMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen · Air conditioning & heating

Your CanAir add-on, paired with your furnace by AirGreen.

We measure your furnace, choose the heat pump and coil with you, and give you a clear quote with the AHRI number and the estimated LogisVert amount.

Book my free estimate514 316-2973

Hydro-Québec never solicits anyone by phone or door to door for LogisVert. A call “from Hydro-Québec” selling a heat pump? Hang up.

RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16
Free estimateAt home, no obligation
LogisVert checkedBy AHRI number, on Hydro-Québec’s list
Showroom1370 rue Joliot-Curie, Unit 712, Boucherville

Sources checked on October 8, 2026

  1. CanAir 4CDH R-454B brochure (revised July 18, 2025): systems, indoor units, electric heat kits and coils.
  2. CanAir CDH side-discharge R-410A brochure (February 20, 2025), MAC coils.
  3. CanAir CDH and 4CDH base warranty (version 2026-02-23) and base warranty 2026-10-05.
  4. ENERGY STAR, Certified Air-Source Heat Pumps, dataset w7cv-9xjt, checked Oct. 8, 2026.
  5. Hydro-Québec, LogisVert residential participation guide, version 1.10, Sept. 15, 2026.
  6. Hydro-Québec, LogisVert eligible heat pump list, owner, existing home: Oct. 8, 2026 file read by the search tool; 64 CanAir AHRI numbers checked.
  7. airgreen.ca product pages and “Nos réalisations” blog, Oct. 8, 2026.

LogisVert amounts are estimates: Hydro-Québec confirms them when you apply. Price on quotation.

Price on quotation. Free in-home estimate.
The CANAIR shop · add-on

All 18 add-on combinations, right below.

One page per heat pump + coil combination, with its AHRI number.

CanAir, Fait pour le Québec