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AirGreen × CANAIR · 4CDH indoor unit · R-454BThe indoor unit of the 4CDH central system and its electric elementsSold and installed by AirGreen in Montreal, Laval, Longueuil and on the South and North Shores.
The full CanAir range- Home
- CanAir
- Central heat pump
- Electric furnace
CanAir · 4CDH electric furnace · R-454B
Closet first: the 4CDH indoor unit, measured for your space.
It is the indoor half of the 4CDH central system: a multi-position cabinet 17.52 to 24.49 in. wide, with 5 to 25 kW electric elements chosen on the quote. It works with the 4CDH outdoor unit, which heats down to -30 °C.
Updated October 27, 2026 · CanAir 4CDH brochure, NEEP and Hydro-Québec’s LogisVert list
4install positions: up, down, left, right, per CanAir
5–25 kWof electric elements, in five kits, chosen on the quote
1,807CFM maximum airflow, 5-ton unit
$5,400indicative LogisVert for the 5-ton system, list of Oct. 27, 2026
This page answers
For anyone replacing an electric furnace who wants to know if the 4CDH unit fits the closet, how it sits and what its elements ask of the panel.
On this page
The CanAir shop · 4CDH unit
All six 4CDH indoor units, right below.
From 1.5 to 5 tons. Each page lists the system’s AHRI number, outdoor and indoor, and the indicative LogisVert amount.
01 · The closet
Enter your closet’s measurements: we draw each cabinet in it, to scale.
Three cabinet widths for six sizes. Measure the free space in inches, door open.
Size to draw in the closet
Your closetThe cabinet fitsThe cabinet does not fit
Result, cabinet only
—
Cabinet drawn (W × D × H)—
Weight—
This compares the cabinet only. You also need room for the ducts, the filter, service access and the manual’s clearances: we measure everything during the visit.
Cabinet dimensions (W × D × H) and weight: CanAir 4CDH brochure (revised July 18, 2025). A dimension equal to the closet’s counts as “fits”.
02 · Four positions
Upright, upside down or lying down: it sits the way your ducts need.
Tap a position: the cabinet turns and the air follows.
Airflow direction
Multi-position
One unit, four ways to set it.
Air comes in at the bottom and leaves at the top.
Air comes in at the top and leaves at the bottom.
Lying down: air leaves to the left.
Lying down: air leaves to the right.
Air in—
Air out—
We choose the position based on your ducts and the space, during the visit. The ECM motor holds a constant airflow up to 0.8 in. H2O of static pressure, per the brochure.
“Multi-position (up/down/left/right)”: CanAir 4CDH brochure (revised July 18, 2025), indoor units.
03 · The elements
From 5 to 25 kW of elements: in BTU/h, and what they draw from the panel.
Five kits sold separately that install in the indoor unit; yours is chosen on the quote. Tap a kit.
Element kit
—
—BTU/h
Current at 230 V (calculation)—
Kit model—
The elements heat when the heat pump needs help. AirGreen holds subclass 16 (electrical) of its RBQ licence 5645-9605-01: the panel is checked during the visit.
A calculation, not a breaker size: the current shown divides the power by 230 V. The breaker and wire size follow the installation manual and the Code. The 4CDH brochure does not map kits to sizes: compatibility is checked in the manual.
EAH-05E to EAH-25E (UL) kits, 230 V: CanAir 4CDH brochure (revised July 18, 2025), p. 7. Conversion: 1 kW = 3,412 BTU/h.
04 · Airflow
Four speeds per size, from 489 to 1,807 CFM.
It is the air the unit pushes into your ducts. On the spec sheet it reads in CFM (cubic feet per minute).
Airflow (CFM) at turbo, high, medium and low speed: CanAir 4CDH brochure (revised July 18, 2025). 1 CFM = 1.699 m³/h, AirGreen conversion.
05 · LogisVert
The amount follows the complete system: from $1,800 to $5,400.
One AHRI number per outdoor + indoor pair, one amount per number.
| Size | Outdoor + indoor | AHRI | Output at -8 °C | LogisVert |
|---|---|---|---|---|
| 1.5 tons | 4CDH2018C21 + 4CDH2018F21 | 215449704 | 15,000 BTU/h | $1,800 |
| 2 tons | 4CDH2024C21 + 4CDH2024F21 | 215449705 | 20,800 BTU/h | $2,496 |
| 2.5 tons | 4CDH2030C21 + 4CDH2030F21 | 215449706 | 23,800 BTU/h | $2,856 |
| 3 tons | 4CDH2036C21 + 4CDH2036F21 | 215449707 | 31,800 BTU/h | $3,816 |
| 4 tons | 4CDH2048C21 + 4CDH2048F21 | 215449708 | 39,500 BTU/h | $4,740 |
| 5 tons | 4CDH2060C21 + 4CDH2060F21 | 215449709 | 45,000 BTU/h | $5,400 |
The indoor unit alone does not qualify. The LogisVert guide excludes replacing a single indoor or outdoor unit. The amount follows the AHRI number of the complete system: the 4CDH indoor unit with its 4CDH outdoor unit.
Amounts and -8 °C outputs: Hydro-Québec LogisVert list of October 27, 2026. Rules: LogisVert residential participation guide, version 1.10, September 15, 2026 ($120 per 1,000 BTU/h at -8 °C, ineligible work, 9 months, 100% of pre-tax cost cap).
06 · Our installs
A 4CDH installed in Rougemont, in Montérégie.
AirGreen’s install of a CanAir 4CDH electric furnace, with its article and photos. And a CanAir central system in Sainte-Adèle.
Photos and articles: AirGreen’s installation blog.
07 · Questions
What people ask us about the 4CDH unit.
Is it a furnace or a heat pump?
Both, as a team: it is the indoor unit of the 4CDH system. The outdoor unit heats and cools as a heat pump; the electric elements, chosen on the quote, heat when it needs help.
What are its dimensions?
Three cabinets: 17.52 × 21.02 × 45 in. (1.5 and 2 tons), 21.02 × 21.02 × 49.02 in. (2.5 and 3 tons) and 24.49 × 21.02 × 52.99 in. (4 and 5 tons), per the CanAir brochure.
Can it be installed lying down?
Yes: it is multi-position, per the brochure (up, down, left, right). The position is chosen to suit your ducts.
Which element kit should I choose?
It is chosen to suit the house and the panel, from 5 to 25 kW. The brochure does not map kits to sizes: we check compatibility in the installation manual, at the quote.
Do I need a new electrical panel?
It depends on its capacity and free space. We check it during the visit: AirGreen holds subclass 16 (electrical) of its RBQ licence.
Does LogisVert pay if I only replace the furnace?
No: the guide excludes replacing a single indoor unit. The indicative amount, from $1,800 to $5,400, applies to the complete system, indoor and outdoor; Hydro-Québec confirms it.
How much does the unit weigh?
From 105.6 to 162.9 lb depending on size: 105.8 lb (1.5 tons), 105.6 lb (2 tons), 129 and 129.4 lb (2.5 and 3 tons), 162.9 lb (4 and 5 tons), per the CanAir brochure.
How many years of warranty on parts?
Ten years on parts and the compressor, for residential use, per CanAir’s CDH and 4CDH base warranty. Labour depends on the date of sale: we confirm it in writing on the quote.
AirGreen · Air conditioning & heating
Your 4CDH unit, measured for your closet and installed by AirGreen.
We measure the space, check the ducts and the panel, and hand you a clear quote with the system’s AHRI number and the indicative LogisVert amount.
RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16
Free estimateAt home, no commitment
LogisVert checkedBy AHRI number, on Hydro-Québec’s list
Showroom1370 Joliot-Curie St., Suite 712, Boucherville
Heads-up: Hydro-Québec does not solicit anyone by phone or door to door for LogisVert. If a call “from Hydro-Québec” tries to sell you a heat pump, hang up.
Sources checked on October 27, 2026
- CanAir 4CDH R-454B brochure (revised July 18, 2025).
- NEEP cold-climate air-source heat pump list (ashp.neep.org), read October 27, 2026.
- Hydro-Québec, LogisVert eligible heat pump list (owner, existing home), file of October 27, 2026.
- LogisVert residential participation guide, version 1.10, September 15, 2026.
- CanAir CDH and 4CDH base warranty (version 2026-02-23) and CanAir base warranty 2026-10-05.
- airgreen.ca product pages, Oct. 27, 2026.
- AirGreen installation blog.
LogisVert amounts are indicative: Hydro-Québec confirms them when you apply. Prices on quote; free in-home estimate.