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Added to comparison 
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 11, 2026
E-38 series · R-410A
FORESTAIR E-38 wall heat pump: 19 dB(A) at its quietest, heating published down to −30 °C
Per its sheet, the 9,000 BTU/h E-38 goes down to 19 dB(A) at the last of its seven airflows (350 m³/h in the table’s order); the 12,000 goes down to 22 dB(A), the 18,000 and 24,000 to 34 dB(A). Its sheet and manual publish heating down to −30 °C.
4R-410A E-38 models, from 9,000 to 24,000 BTU/h
19 dB(A)at its lowest: the 9,000 only
7airflows and sound levels per sizeE-38 spec sheet
−30 °Cpublished heating limitsheet and E38 manual
4 models · R-410AHeating published down to −30 °CSEER 21.5 (24,000) to 38 (9,000)EER 13.0 to 16.67 BTU/W
The shop
The 4 E-38 wall heat pumps in our catalogue
The sheet gives an AHRI number for the 12,000 (206720376) and the 18,000 (206720377), not for the 9,000 or the 24,000.
E-38 quiet slider
E-38 sound level: seven airflows per size, 19 to 54 dB(A)
Pick the size and the airflow step: the marked bar is your choice.
Airflows and levels: E-38 spec sheet table (forestair.ca, read November 5, 2026), printed from the highest to the lowest; the tool pairs them in that order.
9,000 BTU/h E-38 · airflow 7 of 7 (the lowest)
19 dB(A)indoors
Airflow at the same step350 m³/h
Québec.ca reference pointsbelow 40 dB(A)
Outdoor unit57 dB(A), single value
Bars: linear dB(A) scale, 54 dB(A) at the longest. Québec.ca reference points: 40 dB(A) is perceived as peaceful; 50 dB(A) is where noise starts to disturb.
Did you know?
E-38: peak heat, filters and night setting
13,648 BTU/h
the sheet’s heating maximum for the 9,000 BTU/h E-38
The E-38 sheet gives the 9,000 a nominal heating capacity of 9,000 BTU/h and a range of 2,388 to 13,648 BTU/h. The other sizes reach 18,766 (12,000), 24,566 (18,000) and 32,000 BTU/h (24,000). These are range maximums, not deep-cold capacities: no E-38 is listed on NEEP.
E-38 spec sheet (forestair.ca), model table.2 special filters
described by the E38 manual: an antibacterial catalyst filter and a multi-function filter
The E38 manual describes an antibacterial cold-catalyst filter, to replace every 6 to 12 months, and a multi-function filter (silver ion, catechin, anti-mite), to replace when it turns green or black; that one cannot be washed.
E38 series owner’s manual, French version, p. 18.Sleep 3
on the E-38, you set the night temperature curve yourself
The E38 manual describes three sleep settings. The third, Sleep 3, lets you set the sleep curve yourself.
E38 series owner’s manual, French version, pp. 10 to 12.The comparison that matters
12,000 BTU/h: the E-38 against the E-23, from SEER to noise
Same size, same refrigerant, same circuit ampacity: the E-38 sheet gives a SEER of 30.5 against 22.0, and both a lower sound level and a lower heating limit.
| 12,000 BTU/h | E-38 | E-23 |
|---|---|---|
| Nominal heating | 12,200 BTU/h | 13,000 BTU/h |
| Heating range | 3,071 to 18,766 BTU/h | 2,400 to 14,000 BTU/h |
| SEER | 30.5 | 22.0 |
| EER (BTU/W) | 15.3 | 13.0 |
| HSPF (region not stated) | 14.0 | 10.1 |
| Lowest indoor sound level | 22 dB(A), at 400 m³/h | 29 dB(A), at 290 m³/h |
| Published heating limit | −30 °C (sheet and manual) | −25 °C per the sheet, −20 °C per the manual |
| Minimum circuit ampacity / maximum protection | 9 / 15 A | 9 / 15 A |
| Outdoor unit: dimensions, net weight | 899 × 596 × 378 mm, 45 kg | 848 × 540 × 320 mm, 39 kg |
What we check in your home
For an E-38: the outdoor unit, the circuit and 10 m of height difference at most
- The outdoor unit: 899 × 596 × 378 mm and 45 kg for the 9,000 and 12,000, 980 × 790 × 427 mm and 64 or 67 kg for the 18,000 and 24,000.
- The circuit: the sheet publishes no voltage; MCA of 9 to 22 A and MOP of 15 to 35 A depending on the size.
- The height difference between the two units: 10 m at most, per the E-38 sheet.
Frequently asked questions
E-38 wall heat pump: common questions
Does the E-38 really heat down to −30 °C?
As an operating limit, yes: its sheet (table and banner) and its English manual give −30 °C. No document puts a figure on the heat it delivers there; for the E24, the maximum heat at −25 °C is listed on NEEP.
What does the claim of 4.5 times the heating of an electric baseboard mean?
It is a line from the E-38 page on forestair.ca. Its banner gives a COP of 4.5 at 8 °C: at that temperature the unit delivers 4.5 units of heat per unit of electricity. Its table gives a COP of 4.47 for the 9,000 and 3.5 for the 24,000. No COP is published below 8 °C.
Does the E-38 qualify for LogisVert?
No. All four columns of its sheet carry “Energy Star: Oui” (yes), but the ENERGY STAR registry (Canadian market) holds no E-38, and the LogisVert guide v1.10 (September 15, 2026) requires an ENERGY STAR certified heat pump. For LogisVert, look at the R-454B E24: its sizes of 12,000 BTU/h and up carry an indicative amount. Only Hydro-Québec confirms the assistance granted.
What does the E-38’s X-FAN function do?
Per the E38 manual (French version), X-FAN keeps the indoor fan running after shutdown to dry the unit; it does not work in AUTO, fan or heating mode. The manual gives two durations: 10 minutes (p. 10), about 2 minutes at low speed (p. 12).
Which circuit does an E-38 need?
The sheet publishes no voltage. It gives the minimum circuit ampacity (MCA), the current the circuit must carry, and the maximum overcurrent protection (MOP), the largest breaker or fuse allowed: 9 and 16 A for the 9,000, 9 and 15 A for the 12,000, 22 and 30 A for the 18,000, 22 and 35 A for the 24,000. We check your panel at the on-site assessment, up to the 24,000’s 35 A breaker.
Does the E-38 have Wi-Fi?
The E-38 sheet advertises a built-in smart Wi-Fi function, to run the unit from a phone. The E38 manual describes pairing through an app, for iOS 7.0 or Android 4.0 and up, and notes that the function applies only to some models. We confirm it for your E-38 on the quote.
Sold and installed by AirGreen.
A quiet room, 1,101 mm of wall: what to prepare for your E-38
- The free width on the wall: the indoor unit is 970 to 1,101 mm wide depending on the size.
- The room where quiet matters: at the lowest, 19 dB(A) on the 9,000 and 22 dB(A) on the 12,000. Québec.ca reference points: 40 dB(A) is perceived as peaceful; 50 dB(A) is where noise starts to disturb.
RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16. Gas and oil: a licensed partner.
Free estimateAt home, no commitment.
E-38 model on the quoteThe chosen code, from FGH-09ES-E38 to FGH-24ES-E38.
Showroom1370 Joliot-Curie Street, Suite 712, Boucherville.
Hydro-Québec never solicits by phone or door to door for the LogisVert Efficient Homes Program.
Sources
- FORESTAIR, “Série E-38” page on forestair.ca (French) and its spec images (banner, features, model table), read November 5, 2026. forestair.ca (French series page)
- FORESTAIR, E38 series owner’s manual, French version (no date printed). E38 manual FR (PDF)
- FORESTAIR, E38 series owner’s manual, English version (no date printed). E38 manual EN (PDF)
- FORESTAIR, “Série E-23” page on forestair.ca (French) and its model table, read November 5, 2026. forestair.ca (French series page)
- FORESTAIR, E23 series owner’s manual: operating range (no date printed). E23 manual (PDF)
- ENERGY STAR, heat pump registry, Canadian market (dataset w7cv-9xjt), read November 5, 2026: no E-38 or E-23. data.energystar.gov
- NEEP, Cold Climate Air Source Heat Pump List, read November 5, 2026: no E-38 or E-23 listed. ashp.neep.org
- Hydro-Québec, LogisVert Efficient Homes Program, participant’s guide, version 1.10 (September 15, 2026): the heat pump must be ENERGY STAR certified. EN guide (PDF)
- Government of Québec, “Noise measurement”, updated June 16, 2022. quebec.ca
Page updated November 11, 2026.