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CanAir · C22 wall unit · R-410A

The C22: cool summers, heat down to -15 °C.

Six wall units from 9,000 to 24,000 BTU/h, including two on 115 V. It cools up to 50 °C outside and heats down to -15 °C; colder than that, another heat source takes over. And we tell you up front: no LogisVert amount.

Drop the temperatureBook my free estimate

Updated October 27, 2026 · CanAir C22 brochure, ENERGY STAR and Hydro-Québec’s LogisVert list

-15 °C: the C22’s limit24 °C10 °C0 °C-15 °C-30 °CThe C22 heatsBelow -15 °C: backup heat takes over
-15 °Cthe C22’s heating limit, per the CanAir brochure
115 Vin 9,000 and 12,000: two C22 units run on 115 V
21.7SEER2 of the C22 9,000 on 230 V, the most efficient of the series
164 ftof piping possible with the C22 24,000
This page answers

For anyone who mostly wants cooling, with heat in the shoulder seasons, and wants to know what the C22 really does when it freezes.

On this page
The CanAir shop · C22

The 6 C22 wall units, right below.

From 9,000 to 24,000 BTU/h, on 115 V or 230 V. Each page lists the AHRI number.
01 · The thermometer

Drop the temperature: the C22 heats down to -15 °C, no lower.

Slide from 24 °C to -30 °C. At every degree you see whether the C22 is still in its heating range, and which CanAir units still heat.

Outdoor temperature (slide)

-15 °C
24 °C0 °C-30 °C
C22 · 6 modelsR-410A · 9,000 to 24,000 · down to -15 °C—4C22 · 5 modelsR-454B · 9,000 to 18,000 · down to -15 °C—C28 30,000 and 36,000R-410A · down to -15 °C—C28 · 9,000 to 24,000R-410A · down to -30 °C—4C28 · 5 modelsR-454B · 9,000 to 33,000 · down to -30 °C—
Outside, it is
-8°C

—

—

C22 heating range-15 °C to 24 °C
C22 cooling range-15 °C to 50 °C
Gap to the limit—
See the 4C28, which heats down to -30 °C →

The only cold-weather figures published: the C22 9,000

ENERGY STAR certified both C22 9,000 units. For the 12,000, 18,000 and 24,000, neither the CanAir brochure nor ENERGY STAR publishes a cold-weather heating figure.

ModelAt -8 °CAt -15 °C
C22 9,000 · 115 V6,800 BTU/h6,000 BTU/h
C22 9,0006,900 BTU/h6,400 BTU/h

ENERGY STAR, read Oct. 8, 2026; same values on NEEP on October 27, 2026. Heating output at 17 °F (-8 °C) and 5 °F (-15 °C). Neither is cold-climate rated.

02 · 115 or 230 V

In 9,000 and 12,000 BTU/h, the C22 runs on 115 V or on 230 V.

Same series, same size, two voltages. Here are the published differences, side by side; the better of the two gets a green dot.

115 V

C22 9,000 · 115 V

SEER221.5
EER212.5
HSPF2 (region IV)9.0
Cooling, min. to max.2,650 – 10,300 BTU/h
Heating, min. to max.2,700 – 10,500 BTU/h
Indoor sound, low speed22 dB(A)
Outdoor sound55.0 dB(A)
Circuit: MCA / MOP (sheet)20 A / 30 A
ModelsC22SCH09H11
C22SEH09H11
See the page →
VS
230 V

C22 9,000

SEER221.7
EER212.6
HSPF2 (region IV)9.1
Cooling, min. to max.2,900 – 10,200 BTU/h
Heating, min. to max.2,400 – 10,900 BTU/h
Indoor sound, low speed24 dB(A)
Outdoor sound54.5 dB(A)
Circuit: MCA / MOP (sheet)12 A / 15 A
ModelsC22SCH09H21
C22SEH09H21
See the page →
In short: Efficiency is nearly equal: SEER2 21.7 for the 230 V, 21.5 for the 115 V, which is quieter at low speed (22 vs 24 dB(A)). The circuit is what changes: room in your panel is checked at the visit.

CanAir C22 brochure (January 31, 2025), p. 7. MCA (minimum circuit ampacity) and MOP (maximum overcurrent protection): airgreen.ca product pages, Oct. 27, 2026. The hookup is checked at the visit: AirGreen holds subclass 16 (electrical) of its RBQ licence 5645-9605-01.

03 · LogisVert

No LogisVert for the C22: the reason, model by model.

Two possible reasons, and every C22 falls under one of them. If the rebate matters to you, two CanAir series qualify.

ModelAHRIWhy no amount
C22 9,000 · 115 V207683249Under 12,000 BTU/h: LogisVert requires an outdoor unit of at least 12,000 BTU/h nominal cooling.
C22 9,000207683251Under 12,000 BTU/h: LogisVert requires an outdoor unit of at least 12,000 BTU/h nominal cooling.
C22 12,000 · 115 V207683250This AHRI number is neither in ENERGY STAR nor on Hydro-Québec’s list of Oct. 27, 2026.
C22 12,000207683252This AHRI number is neither in ENERGY STAR nor on Hydro-Québec’s list of Oct. 27, 2026.
C22 18,000207683253This AHRI number is neither in ENERGY STAR nor on Hydro-Québec’s list of Oct. 27, 2026.
C22 24,000207683254This AHRI number is neither in ENERGY STAR nor on Hydro-Québec’s list of Oct. 27, 2026.
R-410A

C28: $1,200 to $2,544

The C28 12,000, 18,000 and 24,000 BTU/h have a verified amount, and heat down to -30 °C.

R-454B

4C28: $1,440 to $3,840

The 4C28 from 12,000 to 33,000 BTU/h has a verified amount, and every size heats down to -30 °C.

Hydro-Québec LogisVert list of October 27, 2026 (owner, existing home); ENERGY STAR, Oct. 8, 2026; LogisVert residential participation guide, version 1.10, September 15, 2026. The list changes: we recheck the AHRI number at the quote.

04 · C22 or 4C22

The C22 and the 4C22: twins, two refrigerants.

Same role, same -15 °C limit, same 115 V options. The difference is mostly the refrigerant and what each brochure publishes.

R-410A

C22

RefrigerantR-410A
Refrigerant GWP (100 years)2,088
Sizes9,000 to 24,000
115 V models9,000 and 12,000
Heats down to-15 °C
Highest SEER221.7
Heat at -15 °C published9,000 only (ENERGY STAR)
Silent speednot published
Wi-Fioptional, per our product pages
LogisVertno amount
VS
R-454B

4C22

RefrigerantR-454B
Refrigerant GWP (100 years)466
Sizes9,000 to 18,000
115 V models9,000 and 12,000
Heats down to-15 °C
Highest SEER221.5
Heat at -15 °C published5 sizes: 6,500 to 11,500 BTU/h
Silent speed17.5 to 21 dB(A)
Wi-Fioptional, per the brochure
LogisVert$996 to $1,680 with the “-P” indoor unit

CanAir C22 (p. 7) and 4C22 (p. 5) brochures. GWP: IPCC Fourth Assessment Report (AR4). 4C22 “-P” amounts: Hydro-Québec list of Oct. 27, 2026, the delivered version is confirmed at the quote.

See the 4C22 series

05 · Piping

164 ft on the 24,000: the outdoor unit can sit far away.

The distance between the head and the outdoor unit often decides where it goes: yard, balcony, side of the house. Here are the published limits, size by size (the 115 V units match the 230 V ones of the same size).

C22 9,000
max. length
100 ft
max. height
60 ft
C22 12,000
max. length
100 ft
max. height
60 ft
C22 18,000
max. length
98 ft
max. height
66 ft
C22 24,000
max. length
164 ft
max. height
82 ft

CanAir C22 brochure, p. 7: maximum length and height difference; precharged for 25 ft, then 0.16 oz of refrigerant added per foot (0.32 oz on the 24,000), per the brochure. The technician adjusts the charge per the manual.

06 · Questions

What people ask us about the C22.

How cold can the C22 heat?
Down to -15 °C. Its published heating range runs from -15 °C to 24 °C, and its cooling range from -15 °C to 50 °C.
What happens below -15 °C?
You leave the heating range CanAir publishes: another heat source has to take over (baseboards, furnace or another system). To heat all winter with the wall unit, the C28 from 9,000 to 24,000 and the 4C28 go down to -30 °C.
Why does the C22 have no LogisVert amount?
The 9,000 units are under the 12,000 BTU/h minimum. The 12,000, 18,000 and 24,000 are neither in ENERGY STAR nor on Hydro-Québec’s list of Oct. 27, 2026.
115 V or 230 V: which one?
In 9,000 it is nearly a tie; in 12,000 the 230 V does a little better. The real deciding factor is room in your electrical panel: we look at it at the visit.
Does the C22 have Wi-Fi?
Optional, per our product pages; the C22 brochure itself does not mention it. The module offered is confirmed on the quote. The 4C22, its R-454B twin, lists Wi-Fi control as an option in its brochure.
How far can the outdoor unit be?
100 ft of piping on the 9,000 and 12,000, 98 ft on the 18,000 and 164 ft on the 24,000, per the brochure. Maximum height difference runs from 60 to 82 ft.
C22 or 4C22?
Same -15 °C limit. The C22 runs on R-410A and goes up to 24,000 BTU/h; the 4C22 runs on R-454B, goes up to 18,000 and can get a LogisVert amount with the “-P” indoor unit.
How is the C22 covered?
CanAir’s base warranty applies to the C22 like the other series: for a residential system sold since October 5, 2026, 10 years on the compressor and parts, and 6 years of limited labour for a residential install in Quebec.
AirGreen · Air conditioning & heating

Your C22, picked for summer and the shoulder seasons.

We look at the room, the panel and your current heating, then hand you a clear quote with the AHRI number. If a 4C28 serves you better, we tell you that too.

Book my free estimate514 316-2973
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 C22 R-410A brochure (January 31, 2025), p. 7.
  • CanAir 4C22 R-454B brochure (June 2025), p. 5.
  • ENERGY STAR, Certified Air-Source Heat Pumps, dataset w7cv-9xjt, read Oct. 8, 2026.
  • 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.
  • 100-year GWP, IPCC Fourth Assessment Report (AR4): R-410A 2,088, R-454B 466.
  • CanAir base warranty 2026-10-05 (consumer) and 4-year extended labour warranty 2026-10-05.
  • airgreen.ca product pages, Oct. 27, 2026.

LogisVert amounts are indicative: Hydro-Québec confirms them when you apply. Prices on quote; free in-home estimate.