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Added to comparison 
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Added to comparison 
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Added to comparison 
ELIOS · e23 · R-410AThe ELIOS space at AirGreenSold and installed by AirGreen across Greater Montreal.
My e23Older series, R-410AData checked Oct. 26, 2026
ELIOS e23 wall unit · previous generation
The e23 went down to −25 °C on R-410A, but none of its listings is on the NEEP registry.
Four sizes, 9,000 to 24,000, all 208-230 V: heating down to −25 °C per the brochure, up to 23.5 SEER, ECO mode under 15 Hz. Without a NEEP record, we show no certified cold-weather figure for it.
The e23 in four numbers
−25 °Cheating (brochure)
23.5SEER of the 9,000
<15 Hzcompressor ECO mode
4sizes, all 208-230 V
e23 brochure ENCH0419. SEER (older method), not comparable to SEER2.
4e23 listings
9,000
–24,000
BTU/h nominal, from the smallest to the largest
AirGreen × ELIOSe23 · R-410ADown to −25 °CECO modeService by AirGreen
The essentials
The e23, as its brochure describes it.
Its only detailed source is the e23 brochure; the registries do not hold its certificates.
−25 °C
Operating range down to −25 °C (−13 °F), in heating and cooling.
Brochure e23, p. 423.5 SEER
And 14.9 EER on the 9,000; measured under the older SEER method, not SEER2.
Brochure e23, p. 4HSPF 11.5
On the 24,000, in region 4 (mild climate), per the brochure.
Brochure e23, p. 4<15 Hz
ECO mode: the compressor runs under 15 Hz.
Brochure e23, p. 329,740
BTU/h of maximum heating for the 24,000 (25,000 rated).
Brochure e23, p. 4208-230 V
No e23 in 115 V.
Brochure e23, p. 426.5 dB(A)
Lowest published indoor level (9,000).
Brochure e23, p. 4Twin heads
The 9,000 and 12,000 share the same indoor cabinet.
Brochure e23, p. 4No NEEP record
No e23 has a NEEP record under its AHRI number; the 9,000 has no AHRI number on its listing.
NEEP, Oct. 14, 20261 yr / 5 yrs
Published warranty: 1 year on parts, 5 years on the compressor, optional 10-year coverage.
Brochure e23, p. 2What it was, in figures
The four e23 units, with what the brochure publishes.
Certified cells stay empty: no registry holds its certificates.
What replaces it
e23 versus EMC and EBC: at equal size, what the R-454B units certify.
The ELIOS bulletin names no replacement for the e23; the EMC and EBC are the current wall units.
Owner’s corner
Already have an e23? Here is what we can do for it.
Service, parts, warranty, and a straight answer on availability: it is confirmed at the time of the quotation.
Service and maintenance
We service and repair e23 wall units: cleaning, R-410A refrigerant check, diagnosis. An e23 that works well does not need replacing.
Parts
Remotes, controllers and genuine ELIOS parts: see the ELIOS parts page, or send us a photo of your unit’s label.
Warranty
The e23 brochure publishes 1 year on parts and 5 years on the compressor, with optional 10-year coverage. Check the installation date on your invoice.
The e23 listings
The e23 wall units we have listed.
Availability confirmed at quotation. For a new installation, also look at the EMC and EBC.
Everything to know
The e23 up close, for those who have one.
Its published figures, its noise, its electrical data, and what the switch to R-454B changes for you.
Every model, side by side
The e23 wall units, side by side.
Brochure only: no row has a NEEP figure.
| Model | Heat at −8 °C | Max at −15 °C | Coldest certified point | SEER2 | HSPF2 (V) | Sound | LogisVert | Certification |
|---|---|---|---|---|---|---|---|---|
| e23 wall unit · 9,000 BTU/h | — | — | — | — | — | 26.5–41.7 dB(A) | — | no NEEP or ENERGY STAR record |
| e23 wall unit · 12,000 BTU/h | — | — | — | — | — | 28.6–45.1 dB(A) | — | no NEEP or ENERGY STAR record |
| e23 wall unit · 18,000 BTU/h | — | — | — | — | — | 30.9–46.2 dB(A) | — | no NEEP or ENERGY STAR record |
| e23 wall unit · 24,000 BTU/h | — | — | — | — | — | 35.1–51.7 dB(A) | — | no NEEP or ENERGY STAR record |
Heat at −8 °C, maximum at −15 °C and coldest point: NEEP registry (ashp.neep.org), read by AHRI number on Oct. 14, 2026. SEER2 and HSPF2 region V: same source. LogisVert amounts: Hydro-Québec’s list of eligible heat pumps, Oct. 25, 2026. Sound: ELIOS technical documents. A dash means “not published”.
The thermometer
What NEEP certified for the e23.
No e23 has a NEEP-certified capacity: the thermometer says so rather than invent.
The sound meter
The e23 on the Québec.ca scale.
Levels published by ELIOS.
Did you know
What the e23 brochure said about it.
Tap a card to flip it.
Tech corner
For the technician who comes to service it.
Data from the e23 brochure and ELIOS submittals.
| Size | Power supply | MCA / max. protection | Liquid / gas lines | Max. length / height | Indoor unit W×H×D | Heats down to (ELIOS) |
|---|---|---|---|---|---|---|
| 9,000 BTU/h | 208-230 V · 1 Ph · 60 Hz | — / 15 A | 1/4 in / 3/8 in | 25 m / 10 m | 835×280×198 mm | −25 °C |
| 12,000 BTU/h | 208-230 V · 1 Ph · 60 Hz | — / 15 A | 1/4 in / 1/2 in | 25 m / 10 m | 835×280×198 mm | −25 °C |
| 18,000 BTU/h | 208-230 V · 1 Ph · 60 Hz | — / 20 A | 1/4 in / 1/2 in | 30 m / 20 m | 990×315×218 mm | −25 °C |
| 24,000 BTU/h | 208-230 V · 1 Ph · 60 Hz | — / 25 A | 3/8 in / 5/8 in | 50 m / 25 m | 1,186×343×258 mm | −25 °C |
Refrigerant
R-410A today, R-454B tomorrow: what it changes for your e23.
Your e23: R-410A
It keeps running and is repaired with R-410A. ELIOS’s June 19, 2026 bulletin announces the phase-out of R-410A in 2026 for new equipment.
The replacement: R-454B
The EMC and EBC use R-454B, classed A2L. The two refrigerants are never mixed: a replacement is a complete system, after checking the existing lines.
LogisVert · Hydro-Québec
No LogisVert amount on this page, and here is why.
No e23 is on Hydro-Québec’s LogisVert list of Oct. 25, 2026: without ENERGY STAR certification on the registry, there is no amount.
Hydro-Québec does no phone or door-to-door solicitation for LogisVert. The amount shown is indicative: only Hydro-Québec confirms the aid granted.
Questions
Questions about the ELIOS e23 wall unit.
Is the e23 still sold?
It is an older R-410A series, absent from ELIOS’s June 2026 transition bulletin. Availability of a unit is confirmed at the time of the quotation.
Why no cold-weather figure for the e23?
Its AHRI number leads to no NEEP record. The brochure publishes its range (−25 °C), but no capacity measured in the cold.
Does my e23 qualify for LogisVert?
No e23 is on Hydro-Québec’s list of Oct. 25, 2026.
Can the e23’s SEER be compared with the EMC’s SEER2?
No: SEER2 comes from a stricter test method. A 23.5 SEER and a 26 SEER2 are not directly comparable.
What warranty did the e23 have?
The brochure publishes 1 year on parts and 5 years on the compressor, with optional 10-year coverage.
What replaces what?
For a room heated all winter we first propose the EMC; mostly for cooling, the EBC. We compare on site.
AirGreen × ELIOSe23 · R-410ADown to −25 °CECO modeService by AirGreen
AirGreen × ELIOS · your project
An e23 to service, repair or replace? We will take a look.
We come and see the unit, tell you frankly whether it is worth repairing, and price the EMC or EBC that would replace it.
AirGreen · Air Conditioning & Heating
RBQ licence 5645-9605-01, subclasses 15.8 (ventilation), 15.10 (refrigeration) and 16 (electrical).
Free on-site estimate across Greater Montreal: Montreal, Laval, Longueuil, the North Shore and the South Shore.
Gas, oil and hydronic work is done by a partner who holds the required licence.
Sources checked on Oct. 26, 2026
- ELIOS, e23 brochure (code ELIOS-E23_ENCH0419), English.
- ELIOS, “A2L Transition R-410A → R-454B” bulletin (TRS_E_410454_1, revision 1, JUNE-19-26).
- NEEP, Cold Climate Air Source Heat Pump List, ashp.neep.org, records read by AHRI number on Oct. 14, 2026.
- ENERGY STAR, Certified Air-Source Heat Pumps dataset (data.energystar.gov, w7cv-9xjt), Canadian market, read Oct. 14, 2026.
- Hydro-Québec, LogisVert eligible heat pump list, owner, existing home, file of Oct. 25, 2026 (ELIOS rows identical to Oct. 14).
- Hydro-Québec, LogisVert participation guide, residential customers, version 1.10, Sept. 15, 2026.
- Québec.ca, “Mesure du bruit”, updated June 16, 2022 (dBA sound scale).
- ENERGY STAR, “Properly Sized Room Air Conditioners”, energystar.gov (sizing chart), read Oct. 26, 2026.
Amounts shown are estimates; only the responsible organizations confirm the aid granted. Product availability is confirmed at the time of the quotation.