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FORESTAIR · E24 · MZ · E-TECH+FORESTAIR at AirGreenSold and installed by AirGreen. We install in Montréal, Laval, Longueuil, on the South Shore and on the North Shore.
All of FORESTAIRUpdated November 5, 2026
Ceiling cassettes · FORESTAIR
FORESTAIR ceiling cassettes: from lowest output to maximum, in four sizes
Four R-454B cassettes, from 9,000 to 24,000 BTU/h, each with its own outdoor unit. For three of them, NEEP lists the capacity from lowest output to maximum, from 8.3 °C down to −25 °C; the ENERGY STAR registry lists all four. The size is set at the on-site assessment.
4FORESTAIR cassettes, from 9,000 to 24,000 BTU/h
19,100BTU/h at −15 °C for the 24,000 cassetteNEEP
10,500BTU/h at −8.3 °C for the 12,000 cassetteNEEP
2.2 to 3.3turndown ratio listed on NEEP, by sizeNEEP
FA-K09 to FA-K24 · indoor unitNEEP class: ceiling, non-ductedSZ24-ES454 series in the registriesR-454B · 4 sizes
The shop
The 4 FORESTAIR cassettes, just below
One cassette per size: 9,000, 12,000, 18,000 and 24,000 BTU/h. Below the grid, the tool and the table compare them.
One ceiling, four sizes
One cassette, one temperature: three capacities listed on NEEP
For the 12,000, 18,000 and 24,000 cassettes, NEEP lists a minimum, a nominal value and a maximum at each temperature. Pick the size and the outdoor temperature; the tool shows them with the COP and the indicative LogisVert amount.
Minimum, nominal value, maximum and COP: NEEP records 508671 (12,000), 508670 (18,000) and 508669 (24,000), read November 5, 2026. The 9,000 has no NEEP record: its capacities come from the ENERGY STAR registry (ENERGY STAR record 4529631), with no minimum or maximum, and nothing listed at −25 °C; the tool then moves to the 12,000. Bars: minimum, nominal value and maximum, scaled to the size’s maximum at 8.3 °C; hatched bar: maximum at −25 °C. Turndown ratio: the value NEEP lists; rounded, it matches the maximum at −15 °C divided by the minimum at 8.3 °C. LogisVert: the amount on each cassette’s product page; guide v1.10 rate: $120 per 1,000 BTU/h at −8 °C for an ENERGY STAR “cold climate” heat pump, which we apply to the capacity listed on NEEP at −8.3 °C. Indicative amount. Only Hydro-Québec confirms the assistance granted.
12,000 cassette (FA-K12-D24TL-I-454) at 8.3 °C
12,000BTU/h nominal, listed on NEEP
Minimum · maximum3,100 · 12,700 BTU/h
COP at the nominal value3.52
Turndown ratio (NEEP)2.9
RecordsNEEP 508671 · ENERGY STAR 4529632
LogisVert: $1,260, indicative amount for this cassette (guide v1.10 rate applied to the 10,500 BTU/h listed on NEEP at −8.3 °C; calculation in the tool’s note). Only Hydro-Québec confirms the assistance granted.
Did you know?
Three details from the cassette’s records
16,000 BTU/h
the nominal cooling of the “18,000” cassette, at 35 °C
NEEP and the ENERGY STAR registry list the “18,000” at 16,000 BTU/h in cooling at 35 °C and 18,000 BTU/h in heating at 8.3 °C: its name follows a size, not a listed value. The “24,000” follows the same pattern, with 23,000 and 25,000 BTU/h.
NEEP records 508670 and 508669; ENERGY STAR registry, records 4529633 and 4529634, read November 5, 2026.2,000 BTU/h
the 12,000 cassette’s minimum output in cooling, at 35 °C
In cooling at 35 °C, NEEP lists a minimum output of 2,000 BTU/h for the 12,000, a sixth of its nominal value. The 18,000 goes down to 6,000 BTU/h and the 24,000 to 7,550 BTU/h.
NEEP records 508671, 508670 and 508669: cooling at 95 °F (35 °C).COP 4.33
the 12,000 cassette’s efficiency at its minimum output, at 8.3 °C
At 8.3 °C, NEEP lists a COP of 4.33 at minimum output for the 12,000, against 3.52 at its nominal value. The same holds for the 18,000 (3.91 against 2.9) and the 24,000 (4.64 against 3.51).
NEEP records 508671, 508670 and 508669: heating at 47 °F (8.3 °C).The comparison that matters
The four cassettes side by side: cooling, seasonal efficiency, records
Each size is a distinct combination, with its own outdoor unit and AHRI number.
| Cassette | 9,000 | 12,000 | 18,000 | 24,000 |
|---|---|---|---|---|
| Indoor unit | FA-K09-D24TL-I-454 | FA-K12-D24TL-I-454 | FA-K18-D24TL-I-454 | FA-K24-D24TL-I-454 |
| Outdoor unit | FA-H09-D24TL-O-454 | FA-H12-D24TL-O-454 | FA-H18-D24TL-O-454 | FA-H24-D24TL-O-454 |
| AHRI | 217549973 | 217549974 | 217549975 | 217549976 |
| NEEP | not listed | 508671 | 508670 | 508669 |
| ENERGY STAR (Canadian market) | 4529631 | 4529632 | 4529633 | 4529634 |
| Nominal cooling at 35 °C | 9,500 BTU/h | 12,000 BTU/h | 16,000 BTU/h | 23,000 BTU/h |
| Maximum cooling at 35 °C (NEEP) | — | 13,600 BTU/h | 19,400 BTU/h | 25,200 BTU/h |
| SEER2 | 23.0 | 21.0 | 20.5 | 22.5 |
| EER2 | 12.5 | 11.7 | 11.0 | 11.7 |
| HSPF2 (Region IV) | 10.5* | 10.0 | 8.5 | 10.4 |
| HSPF2 (Region V, NEEP) | — | 8.9 | 7.4 | 9.4 |
Who does what
Four cassettes under the FORESTAIR name; AirGreen picks the size with you, measures the ceiling and installs it
From FORESTAIR
- The four R-454B FA-K09-D24TL-I-454 to FA-K24-D24TL-I-454 cassettes and their outdoor units
- Their listings in the ENERGY STAR registry and, for three sizes, on NEEP
From AirGreen
- The on-site assessment: the space above the ceiling and where the outdoor unit goes
- The choice of size for the room: at −15 °C, the registries list from 7,400 BTU/h (9,000) to 19,100 BTU/h (24,000)
- The quote with the AHRI number of the chosen cassette and, from the 12,000 up, its indicative LogisVert amount
- The installation of the cassette and its outdoor unit, under RBQ licence 5645-9605-01
Frequently asked questions
The FORESTAIR cassette, in four answers
Why do the figures on this page come from the registries?
We found no FORESTAIR document published on the cassette (forestair.ca and the E24 series brochure, checked November 5, 2026). So the figures come from NEEP and the ENERGY STAR registry, which list each cassette with its outdoor unit and AHRI number.
What LogisVert amount does each cassette have?
12,000: $1,260; 18,000: $1,740; 24,000: $2,640, indicative amount each (calculation in the tool’s note). The 9,000 has no LogisVert amount: the LogisVert participant’s guide (version 1.10, September 15, 2026) calls for an outdoor unit of at least 12,000 BTU/h nominal cooling, and it is under that minimum whether you read the size (9,000) or the listed value (9,500, ENERGY STAR record 4529631). Only Hydro-Québec confirms the assistance granted.
Which AHRI number will be on the quote?
The chosen cassette’s number, from 217549973 for the 9,000 to 217549976 for the 24,000 (table above). The LogisVert guide asks for the invoice to show the unit’s AHRI or ENERGY STAR number.
Is a bigger cassette always the better choice?
Not necessarily. The minimum output NEEP lists at 8.3 °C rises with the size, from 3,100 BTU/h for the 12,000 to 8,700 BTU/h for the 24,000: in mild weather, a cassette does not go below that floor. That is one reason the size is set room by room, at the on-site assessment.
Sold and installed by AirGreen.
A FORESTAIR cassette sized to the room, from the 9,000 to the 24,000.
At the visit, we measure the space above the ceiling, place the cassette and its outdoor unit, then settle on the size.
RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16. Gas and oil: a licensed partner.
Free estimateAt home, no commitment.
LogisVert on the quoteAHRI number and indicative amount when the unit qualifies. Only Hydro-Québec confirms the assistance granted.
Showroom1370 Joliot-Curie Street, Suite 712, Boucherville.
Hydro-Québec never does telephone or door-to-door solicitation for the LogisVert Efficient Homes Program.
Sources
- NEEP, Cold Climate Air Source Heat Pump List, records 508669 to 508671 (24,000, 18,000 and 12,000 cassettes); no record for AHRI 217549973 (9,000), read November 5, 2026. ashp.neep.org
- ENERGY STAR, heat pump registry, Canadian market (dataset w7cv-9xjt), records 4529631 to 4529634, read November 5, 2026. data.energystar.gov
- Hydro-Québec, LogisVert Efficient Homes Program, participant’s guide for residential customers, version 1.10 (September 15, 2026). Indicative amounts: those on our product pages. EN guide (PDF)
- FORESTAIR, forestair.ca, “Ducted and Ductless Heat Pump” category (no cassette), read November 5, 2026. forestair.ca
- FORESTAIR, E24 series brochure, document 072025 (2025): wall units only. PDF
Page updated November 5, 2026.