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Updated November 11, 2026
E-20 series · R-410A

FORESTAIR E-20 wall heat pump: which circuit for each model, from 115 V to 36,000 BTU/h

Per its sheet, the E-20 comes on 115 V at 9,000 and 12,000 BTU/h, with a 25 A maximum fuse; the five 208-230 V or 230 V models call for 15 to 20 A. Already own an E-20? The v2.0 installation manual (02/2020) is one click away, in French and English.

Find my circuitE-20 manual v2.0 (PDF)Book an on-site assessment
7R-410A E-20 models, from 9,000 to 36,000 BTU/h
2E-20 models on 115 V, the 9,000 and the 12,000
25 Amaximum fuse of both 115 V unitsE-20 spec sheet
5 mmaximum height difference between the two units, every sizesheet and v2.0 manual
7 models · R-410A36,000 BTU/h · the largest E-20SEER 17 to 20 by modelManual v2.0 · 02/2020E-20: heating published from −25 to +30 °C
The shop

The 7 E-20 wall heat pumps in our catalogue

FORESTAIR
E-20 circuit tool

Which circuit for my E-20? Current and fuse, model by model

Pick the size and the power supply: the tool shows the E-20 table row for that model. If the size does not exist on the chosen supply, it switches to the one the sheet gives.

FORESTAIR
Size
Power supply

E-20 spec sheet table (forestair.ca, read November 5, 2026). Each pair reads cooling / heating. SEER measures efficiency over a cooling season, HSPF over a heating season (Region IV on this sheet): the higher the number, the less the E-20 uses for the same work, from SEER 20 on the 9,000 at 115 V to SEER 17 on the 36,000. The 4 × 16 AWG cable links the two units; the v2.0 manual gives the same gauge, AWG 16 (1 mm²), for all seven models.

E-20 · 12,000 BTU/h · 115 V (FA-H12A20TL)

25 Amaximum fuse

Nominal capacity12,000 / 12,000 BTU/h
Nominal current9.7 / 9.7 A
Maximum current12.1 / 12.1 A
EfficiencySEER 20 · HSPF 10 · EER 10.5
Cable between the two units4 × 16 AWG

In the E-20 series, 115 V is limited to the 9,000 and the 12,000. The panel and the circuit are checked at the on-site assessment.

Did you know?

E-20: three details from the v2.0 manual

FORESTAIR
Lost the remote?

the E-20 indoor unit’s emergency button takes over

Per the v2.0 manual, one press on the indoor unit’s emergency button starts cooling; a second press within 3 seconds switches to heating.

E-20 installation and operation manual, v2.0, French version, p. 9.
3/8 in

the liquid line of the 36,000 BTU/h E-20; the other wall units of the four FORESTAIR series have 1/4 in

The E-20 sheet and the v2.0 manual give the 36,000 a 3/8 in liquid line and a 5/8 in gas line. The six other E-20 units have a 1/4 in liquid line, like every size in the E24 brochure and the E-23 and E-38 sheets.

E-20 spec sheet (forestair.ca); v2.0 manual, French version, p. 32; E24 series brochure, document 072025; E-23 and E-38 spec sheets.
1 manual, 7 models

the same v2.0 manual covers the two 115 V E-20 units and the five others

Its cover lists FA-H09-A20TL, FA-H12-A20TL, FA-H09-D20TL, FA-H12-D20TL, FA-H18-D20TL, FA-H24-D20TL and FA-H36-D20TL (the sheet writes FA-H09A20TL and FA-H12A20TL). The name “E-20” does not appear in it: it comes from the series page on forestair.ca. Its wiring table has one column per model, 115 V and 230 V side by side (the sheet gives 208-230 V for the D models at 9,000 and 12,000).

E-20 installation and operation manual, v2.0, French version: cover and p. 34.
The comparison that matters

The 12,000 BTU/h E-20 on 115 V: what its sheet publishes next to the E24

Next to the E24 of the same size and supply: airflow, moisture removal, height difference, factory charge and protection, as each document gives them.

FORESTAIR
12,000 BTU/h, 115 VE-20E24
Model codeFA-H12A20TLFA-H12-A24TL
Indoor airflow650 m³/h (one value)850 m³/h at the highest (five values)
Moisture removal1.6 L/h1.6 L/h
Maximum height difference between the two units5 m10 m
Factory refrigerant charge1,000 g, for 7.5 m of pipingblank in the brochure
Maximum protection25 A fuse25 A (MOP)
Outdoor unit, sound level52 dB(A)52 dB(A)
NEEP, ENERGY STAR, LogisVertnonesee the E24 series
E-20 spec sheet and v2.0 manual; E24 series brochure (document 072025). Airflow: the E-20 sheet gives one value, the E24 brochure five, the highest of which is shown here. Québec.ca reference points: 40 dB(A) is perceived as peaceful; 50 dB(A) is where noise starts to disturb. See the E24 series Compare the four wall series
What we check in your home

Panel, height difference and factory charge: the three points of an E-20 install

FORESTAIR
  • The panel: a 15 to 25 A fuse depending on the E-20 model, on a 115 V, 208-230 V or 230 V circuit.
  • The height difference between the indoor and outdoor units: 5 m at most, per the sheet and the v2.0 manual.
  • The factory charge: it covers 7.5 m of piping, from 770 g (9,000 on 115 V) to 2,600 g (36,000).
Frequently asked questions

E-20 wall heat pump: common questions

FORESTAIR
Does the E-20 heat in deep cold, and does it qualify for LogisVert?

Its sheet publishes heating down to −25 °C and a nominal capacity of 9,500 to 36,000 BTU/h by model, without saying at which outdoor temperature it is measured. It gives no capacity below zero, and no E-20 is on NEEP, the list that gives cold-climate heat pumps’ capacity at −8.3 °C and −15 °C: so this page shows no figure at those temperatures. The E-20 is not in the ENERGY STAR registry (Canadian market) either; the LogisVert guide v1.10 (September 15, 2026) calls for an ENERGY STAR certified heat pump, so the E-20 has no LogisVert amount. Only Hydro-Québec confirms the assistance granted.

Is the E-20 heat pump quiet?

In cooling, the sheet gives three indoor levels per model. The 9,000 units run from 32 to 38 dB(A) and the 12,000 units from 34 to 40 dB(A); the 18,000 runs from 34 to 44 dB(A), the 24,000 and 36,000 from 42 to 50 dB(A). Outdoors: 50 to 58 dB(A). Québec.ca reference points: 40 dB(A) is perceived as peaceful; 50 dB(A) is where noise starts to disturb.

Can the E-20 remote measure the room temperature?

Yes, with the I Feel function: per the v2.0 manual, the remote then measures the temperature where it sits, and the function switches itself off after 2 hours (p. 20).

How much electricity does an E-20 use per year?

The sheet prints 375 to 1,635 kWh per year depending on the model, without saying on what basis. Each value equals the nominal cooling input power multiplied by 500 hours (our calculation): so these are not heating figures.

Does the E-20 have Wi-Fi?

The E-20 page on forestair.ca advertises built-in Wi-Fi; the v2.0 manual does not mention it and describes only the remote control. What comes with your E-20 is written on the quote.

After a power cut, does the E-20 restart on its own?

Yes: the v2.0 manual describes an automatic restart function that resumes the settings from before the outage (p. 9). It also says the compressor waits 3 minutes after power-up, and 3 minutes at each mode change, to protect itself.

Sold and installed by AirGreen.

Your E-20: two checks before our visit

  • Have a photo of your electrical panel at hand: on 115 V, the 9,000 and 12,000 call for a 25 A maximum fuse.
  • The height of the chosen wall: at least 2.5 m between the floor and the indoor unit, per the v2.0 manual.
Book an on-site assessment514 316-2973
RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16. Gas and oil: a licensed partner.
Free estimateAt home, no commitment.
Electrical data from the sheetCurrent and maximum fuse, model by model, read from the E-20 sheet.
Showroom1370 Joliot-Curie Street, Suite 712, Boucherville.

Hydro-Québec never solicits by phone or door to door for the LogisVert Efficient Homes Program.

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Sources

  1. FORESTAIR, “Série E-20” page on forestair.ca (French) and its spec images (banner, features, model table), read November 5, 2026. forestair.ca (French series page)
  2. FORESTAIR, installation and operation manual, mini split air conditioner / heat pump (FA-H09-A20TL to FA-H36-D20TL), v2.0, 02/2020, French version. FR manual (PDF)
  3. FORESTAIR, the same manual, v2.0, 02/2020, English version. EN manual (PDF)
  4. FORESTAIR, E24 series brochure, document 072025 (2025). PDF
  5. NEEP, Cold Climate Air Source Heat Pump List, read November 5, 2026: no E-20 listed. ashp.neep.org
  6. ENERGY STAR, heat pump registry, Canadian market (dataset w7cv-9xjt), read November 5, 2026: no E-20. data.energystar.gov
  7. 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)
  8. Government of Québec, “Noise measurement”, updated June 16, 2022. quebec.ca

Page updated November 11, 2026.