Home » Wall Mounted Heat Pump Comfortmaker (DLCSRA) SOFTSOUND (-30°C)
AirGreenCOMFORTMAKER

COMFORTMAKER // SoftSound®

Five SoftSound® sizes, and one that changes the rules

DLCSRA · 9,000 to 36,000 BTU/h · DLFSHA head

All COMFORTMAKER

COMFORTMAKER // SoftSound®

COMFORTMAKER SoftSound® wall heat pump (DLCSRA): five sizes, and why the 36,000 is different

Five sizes on one ladder; at the 36,000, the rules change.

Five sizes, from 9,000 to 36,000 BTU/h. At 36,000 BTU/h, the SoftSound’s published heating range stops at −25 °C, not −30 °C.

Page updated November 5, 2026

This page answers

Which SoftSound size do you need, and what changes at the 36,000?

5sizes offered, from 9,000 to 36,000 BTU/h
−25 °Cpublished heating range of the 36,000 (−30 °C for the others)
6.63 to 15 mpublished air throw, from the 9,000 to the 36,000
0.7 to 4.17 L/hpublished dehumidification, by size
  • AirGreen × COMFORTMAKER
  • SoftSound® · DLCSRA
  • Five sizes, from 9,000 to 36,000 BTU/h
  • Heating published down to −30 °C, from 9,000 to 24,000
  • 36,000: down to −25 °C
  • Montreal · Laval · Longueuil · South Shore · North Shore
AirGreen

Sold and installed by AirGreen.

We install in Montreal, Laval, Longueuil, the South Shore and the North Shore.

01 // The tool

The size ladder

Five sizes, one ladder. Pick a size: published heat, head, dehumidification, air throw, refrigerant lines and circuit update. The 36,000 is outlined: it does not follow the same rules.

Size

Values published in the July 2020 COMFORTMAKER catalogue (tables pp. 20–24). The share of the −15 °C maximum over the 8.3 °C rated heat is an AirGreen calculation, made on the published value, not on the size name.

12,100BTU/h

at most, at −15 °C

Rated heat at 8.3 °C
12,000 BTU/h
Rated heat at −8.3 °C
7,600 BTU/h
Maximum heat at −15 °C
12,100 BTU/h
Maximum at −15 °C ÷ rated at 8.3 °C
101% AirGreen calculationnot the same base as the brand’s “100% at −15 °C” claim for the 12,000 and 18,000
Published heating range
down to −30 °C
Head width
810 mm
Dehumidification
1.51 L/h
Published air throw
6.99 m
Refrigerant lines · lift
25 m · 10 m
Circuit, MCA / max fuse
9 A / 15 A

The 12,000 publishes up to 12,100 BTU/h at −15 °C, which is 101% of its rated heat at 8.3 °C (AirGreen calculation).

COMFORTMAKER catalogue, July 2020, pp. 20–24.

The COMFORTMAKER shop

SoftSound® units, right below

Five sizes, from 9,000 to 36,000 BTU/h. Price on quotation, after the on-site assessment.

COMFORTMAKER

02 // Did you know

Three details from COMFORTMAKER’s documents

50 m

The 36,000 reaches further

For the 36,000, the catalogue publishes up to 50 m of refrigerant lines and 25 m of lift.

COMFORTMAKER catalogue, July 2020, pp. 21–22

15 m

A 15 m air throw

The 36,000 head has a published air throw of 15 m.

COMFORTMAKER catalogue, July 2020, p. 24

1.51 L/h

How much water the 12,000 and the 9,000 remove

The 12,000 removes twice as much water an hour as the 9,000: 1.51 L against 0.7 L.

COMFORTMAKER catalogue, July 2020, p. 24; the ratio between the two values is an AirGreen calculation

03 // The comparison

SoftSound® or SoftSound® Deluxe, at 18,000 BTU/h

The SoftSound® Deluxe is the neighbouring series. At 18,000 BTU/h, the SoftSound® publishes more heat at −15 °C, a lower minimum sound value and a lighter outdoor unit; the SoftSound® Deluxe publishes a higher SEER and HSPF.

ValueSoftSound® 18,000SoftSound® Deluxe 18,000*
SEER (pre-2023 test basis)22.028.2
HSPF (region not printed)10.514.0
Rated heat at −8.3 °C11,900 BTU/h12,300 BTU/h
Maximum heat at −15 °C20,700 BTU/h18,000 BTU/h
Lowest published head sound value33.9 dB(A)35.1 dB(A)
Outdoor unit net weight51.4 kg61.4 kg
Head width1,090 mm1,259 mm

The SoftSound® outdoor unit weighs 10.0 kg less (net weights, AirGreen calculation). * SoftSound® Deluxe 18,000: COMFORTMAKER brochure, January 2023. See the SoftSound® Deluxe DLCPRA

COMFORTMAKER catalogue, July 2020, pp. 20–24; COMFORTMAKER brochure, January 2023, pp. 14 and 18

04 // Published figures

The five sizes, value by value

Value9,00012,00018,00024,00036,000
SEER / EER24.7 / 14.021.5 / 12.522.0 / 12.520.0 / 12.518.0 / 10.5
HSPF (region not printed)10.511.010.510.010.0
Rated heat at 8.3 °C12,000 BTU/h12,000 BTU/h18,000 BTU/h25,000 BTU/h36,000 BTU/h
Rated heat at −8.3 °C7,500 BTU/h7,600 BTU/h11,900 BTU/h15,000 BTU/h21,000 BTU/h
Maximum heat at −15 °C10,700 BTU/h12,100 BTU/h20,700 BTU/h23,300 BTU/h23,400 BTU/h
COP at 8.3 / −8.3 / −15 °C3.17 / 2.65 / 1.603.20 / 2.40 / 1.603.22 / 2.50 / 1.602.93 / 2.35 / 1.703.44 / 2.60 / 1.50
Published heating rangedown to −30 °Cdown to −30 °Cdown to −30 °Cdown to −30 °Cdown to −25 °C
Outdoor unit sound56.6 dB(A)54.6 dB(A)58.9 dB(A)61.0 dB(A)60.0 dB(A)
Head sound (3 values printed)24.7 / 32.1 / 39.8 dB(A)26.1 / 33 / 41 dB(A)33.9 / 41.7 / 47 dB(A)34.8 / 42.9 / 49.1 dB(A)33 / 44 / 51 dB(A)
Head width810 mm810 mm1,090 mm1,090 mm1,350 mm
Outdoor unit, W × H × D800 × 554 × 333 mm800 × 554 × 333 mm845 × 702 × 363 mm946 × 810 × 420 mm946 × 810 × 420 mm
Outdoor unit net weight41.2 kg41.6 kg51.4 kg64 kg65 kg
MCA / max fuse9 A / 15 A9 A / 15 A17 A / 25 A20 A / 30 A25 A / 35 A
Maximum length / lift25 m / 10 m25 m / 10 m30 m / 20 m30 m / 20 m50 m / 25 m
Dehumidification0.7 L/h1.51 L/h1.38 L/h2.67 L/h4.17 L/h
Air throw6.63 m6.99 m7.6 m8.7 m15 m

The catalogue prints three sound values for the head’s four speeds, without saying which one is missing. The 36,000’s 50 m length is the one published in the catalogue. SEER and HSPF on the pre-2023 test basis. MCA: minimum circuit ampacity; max fuse: the largest fuse or breaker allowed (printed as MOCP in the ductless catalogue).

COMFORTMAKER catalogue, July 2020, pp. 19–24

05 // Good to know

Good to know before the on-site assessment

The 36,000: what changes

Published heating range down to −25 °C instead of −30 °C, 50 m of refrigerant lines in the catalogue instead of 25 to 30 m, a 1,350 mm head and 4.17 L/h of dehumidification. At −15 °C, it publishes up to 23,400 BTU/h, barely more than the 24,000 (23,300 BTU/h).

From 9,000 to 24,000: heating published down to −30 °C

The first four sizes publish a heating range down to −30 °C, where the brand states, for the series, up to 69% of rated capacity. The catalogue also says the 12,000 and 18,000 keep 100% of their heating capacity at −15 °C.

Wi-Fi and wired wall controls

Wi-Fi is added with the KSAIF0501AAA kit, sold as an accessory. Two wired wall controls are offered as options: KSACN0101AAA (timer) and KSACN0401AAA (7-day programmable).

06 // Warranty

The COMFORTMAKER warranty on the SoftSound®

  • 10 years on parts (limited warranty) for the original owner, in residential use, when the unit is registered within 90 days of installation.
  • Without that registration: 5 years on parts.
  • Subsequent owners: the rest of the first five years.
  • Where the law forbids tying the warranty to registration, registration is not required.
  • COMFORTMAKER does not cover labour.

The full terms are in the unit’s warranty certificate.

“Residential Warranties at a Glance”, COMFORTMAKER, AP-002-CM-00, 03/2023

AirGreen // COMFORTMAKER

What COMFORTMAKER publishes, what AirGreen does

COMFORTMAKER

What COMFORTMAKER publishes

  • The units and their spec sheetsThe values shown here are the ones the brand publishes; our calculations carry the label “AirGreen calculation”.
  • The parts warrantyAs printed in its documents, with its conditions.
AirGreen

What AirGreen does

  • Sold and installed by AirGreen.Montreal, Laval, Longueuil, the South Shore and the North Shore.
  • The on-site assessmentThe series and the size are chosen in your home.
  • One clear quotationThe unit, the install and the accessories you choose, on one document.

07 // Questions

The questions we get

Which SoftSound® size should I choose?

The size is chosen during the free on-site assessment. The size ladder shows what each one publishes: at −15 °C, for example, the 12,000 publishes up to 12,100 BTU/h and the 18,000, 20,700 BTU/h.

Does the SoftSound® heat at −30 °C?

From 9,000 to 24,000 BTU/h, its published heating range goes down to −30 °C, where the brand states up to 69% of rated capacity; the 36,000 stops at −25 °C. In Montreal, the 1981–2010 normals (station 7025250) give an average daily minimum of −14.0 °C in January and 0.27 days a year below −30 °C.

Is the SoftSound® quiet?

The 9,000 head publishes 24.7 dB(A), the lowest value of the three wall series; the other sizes start between 26.1 and 34.8 dB(A). Outside, the catalogue publishes 54.6 to 61.0 dB(A). Québec.ca (“Noise measurement”, updated June 16, 2022) puts 40 dB(A) at “library, refrigerator, a quiet street at night”, “a peaceful area”, and 50 dB(A) at “moderate rain, washing machine”, “the beginning of disturbance”. COMFORTMAKER does not publish the test conditions, so the comparison is only a guide.

Does the SoftSound® come with Wi-Fi?

No. It is added with the KSAIF0501AAA kit, sold as an accessory. Tell us during the assessment and it goes on the quotation.

What warranty comes with the SoftSound®?

10 years on parts (limited warranty) when the unit is registered within 90 days of installation, otherwise 5 years, for the original owner in residential use. COMFORTMAKER does not cover labour.

How much does an installed SoftSound® cost?

The price is on quotation, after the on-site assessment: the size and the refrigerant line length change the job. The assessment is free and comes with no obligation.

Sources checked November 5, 2026

  • “Catalogue des systèmes sans conduit résidentiels et commerciaux légers”, COMFORTMAKER, July 2020, pp. 19–24 (SoftSound® series): shareddocs.com
  • “Residential and Light Commercial Ductless Systems Catalog”, COMFORTMAKER, 328-42-0499-00, May 2018, pp. 19–24 (cross-check): shareddocs.com
  • “Residential Warranties at a Glance”, COMFORTMAKER, AP-002-CM-00, 03/2023: shareddocs.com
  • Canadian Climate Normals 1981–2010, Environment and Climate Change Canada, station MONTREAL/PIERRE ELLIOTT TRUDEAU INTL A (7025250), read November 5, 2026: climate.weather.gc.ca
  • “Noise measurement”, Québec.ca, updated June 16, 2022: quebec.ca

AirGreen calculations (kW conversions, sums, percentage shares) are made on the published values and labelled as such.

AirGreen // Air conditioning and heating

We pick the right step on the ladder in your home

We look at the room and the route to the outdoor unit, then tell you which SoftSound® size fits.

Book my free estimate514-316-2973
RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16. Gas and oil work is entrusted to a licensed partner.
Free estimateAt your home, no obligation.
Showroom1370 Joliot-Curie Street, Suite 712, Boucherville.

Page updated November 5, 2026