2-Zone Heat Pump DURASTAR Sirius Heat | 18,000 BTU - R454B

In stock
SKU: DRA3H18M2A
18,000BTU/h · 2 heads
−30 °Cheats down to
$2,400LogisVert, indicative
ENERGY STAR® cold climateENERGY STAR Most EfficientOptional Wi-FiR-454BUp to 3 heads
Talk to a technician · 514 316-2973
Outdoor unit DRA3H18M2APossible indoor models DRAC0912F2A, DRAC18F2A, DRAC24F2A, DRADH0912F2A, DRADH18F2A, DRADH24F2A, DRADL0612F2A, DRADL18F2A, DRAF18F2A, DRAF24F2A, DRAL0612F2A, DRAL18F2A, DRAM18F2A, DRAM24F2A, DRAS09F2A, DRAS12F2A, DRAS16F2AAHRI 215359215· ENERGY STAR 3621110
In short

The Durastar Sirius Heat R454B 18 000 multi-zone heat pump heats and cools 2 rooms with a single outdoor unit. ENERGY STAR cold-climate certified, it delivers 20,000 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $2,400 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.

01 · The verdict in 10 seconds

2 rooms, one outdoor unit.

Compared with the 48 multi-zone systems of 18,000 BTU we sell. Every number on this page carries its source.

ENERGY STAR Most EfficientNEEP 389546AHRI 215359215LogisVert · October 1, 2026
+20,000 BTU/h at −8 °CRank 2 (tied) of 45. Class median: 15,000 BTU/h.
+$2,400 LogisVert grantRank 1 (tied) of 37. Class median: $1,800.
!Good to know: SEER2 21.0Rank 27 of 47; class median: 22.0.
20,000BTU/h certified at −8 °C
−30 °Cstill heating
2 → 3heads, on the same unit
2.25COP at −8 °C
$2,400LogisVert, indicative
02 · The machine

The parts that make a multi-zone system.

Tap a part to learn more.

DRA3H18M2A

Outdoor unit

One compressor for the whole house. It supplies up to 3 heads and modulates from 5,700 to 20,000 BTU/h depending on what the rooms call for (NEEP).

03 · How it works

Turn rooms on and off. Watch the power being shared.

One outdoor unit supplies every head: when several rooms call at once, they share its capacity. Pick an outdoor temperature.

04 · My plan

Tell us your rooms. We tell you if this size is enough.

Pick the number of rooms and their size. The estimate targets a −15 °C day; it is a guide, the real calculation is done room by room at your home.

05 · The series

The whole series at a glance: find the box that fits you.

Each box is a product: the outdoor unit’s size, and the number of heads.

Outdoor2 zones3 zones4 zones5 zones6 zones
18,000BTU
Here3
28,000BTU
234
36,000BTU
2345
48,000BTU
23456
55,000BTU
23456

Durastar Sirius Heat R454B 18 000 · 2 zones

20,000 BTU/h
at −8 °C
$2,400
LogisVert

Up to 3 heads on this outdoor unit. Tap another box to see that size.

06 · Deep cold

At −15 °C, it still delivers 100 % of its rated capacity.

Tap a temperature: certified capacity, efficiency and the cost of one hour of heating.

It slows down, it speeds up: the certified modulation range

Light bar: from minimum to maximum capacity. Dark mark: the rated value.

+8.3 °C
5,700 → 25,400 BTU/h
-8 °C
3,800 → 20,000 BTU/h
-15 °C
3,500 → 18,000 BTU/h
Source: NEEP, minimum, rated and maximum ratings at 47, 17 and 5 °F.
07 · The bill

At every temperature, cheaper than baseboards.

Cost of one hour at full output, for the same heat delivered. Hydro-Québec Rate D, second tier: 11.142 ¢/kWh.

08 · Efficiency

The official ratings, on the same scales as before.

SEER2, HSPF2 and EER2 come from the AHRI certification. The mark shows the median of the same-size multi-zone systems we sell.

SEER2 · seasonal cooling21.0
Scale 1 – 30Median: 22
Rank 27 (tied) of 47 in its class.
HSPF2 · seasonal heating10.0
Scale 1 – 15Median: 10
Rank 15 (tied) of 46 in its class.
EER2 · cooling in peak heat13.0
Scale 1 – 20Median: 12.5
Rank 17 (tied) of 45 in its class.
COP at −15 °C2.0
Scale 0 – 4Median: 2
Rank 16 (tied) of 41 in its class.
ENERGY STAR Most EfficientCold climate · ID 3621110 · ENERGY STAR database
09 · LogisVert grant

A grant you can calculate, not guess.

20,000 BTU/h÷ 1,000 ×$120=$2,400

The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $120 per 1,000 BTU/h is the rate for ENERGY STAR cold-climate heat pumps (guide v1.10).

Set for this system (AHRI 215359215). Another head combination (ducted, console) can change the AHRI number, and so the amount.
Cap: the grant never exceeds 100 % of the purchase and installation cost before taxes.
9 months after installation to apply; +5 % when two measures are in the same request.
All about LogisVert, with the simulator
10 · Report card

Where it ranks among same-size multi-zone systems.

Compared with the 48 multi-zone systems of 18,000 BTU we sell, using the LogisVert list figures. Weaknesses too, said plainly.

11 · Head-to-head

Against three other brands in its class.

Same rated size, other manufacturers. Pick the opponent.

12 · Multi-zone or wall units

One multi-zone or several wall units? Both sides, honestly.

This multi-zone2 wall units
On the wall1 outdoor unit2 outdoor units
Electrical1 dedicated circuitOne circuit per unit
CapacityShared between roomsReserved for each room
If the outdoor unit stopsEvery zone stopsOnly one room
ModesSame mode everywhereEach room chooses
LogisVert$2,400 for the systemDepends on each model

We compare both options on your floor plan during the estimate.

13 · Installation

What to know before installing a multi-zone system.

Dimensions, wiring and lines, drawn. Then our six steps.

The outdoor unit, dimensioned

21.81 in
DRA3H18M2ADepth 12.99 in
31.69 in
Dimensions: product sheet (W × D × H).

One circuit for the whole house

Electrical panel
Load calculation before the quote
15 A max. breaker
MCA 15 A · 220 V
Outdoor unit
Head 1
Head 2
Our RBQ licence covers electrical work (subclass 16).
01Room-by-room visit and surveyWe measure each zone and note insulation and windows. The on-site estimate is free.
02Heads and line layoutOne pair of lines per head.
03Outdoor unit baseAbove the snow line, away from the neighbours’ bedroom windows.
04Exposed, finished linesLines under line covers, no work inside the walls.
05Dedicated circuit220 V, MCA 15 A, 15 A protection. The panel load calculation is done before the quote.
06Commissioning, zone by zoneEach head is tested and the controls set up. Then the LogisVert application within 9 months.
14 · Sound

Published sound levels, on one scale.

We use the outdoor figure to choose where the unit goes.

24
43
55
27
56
20 dB(A)3040506070
24 Reference head, lowest speed43 Reference head, highest speed27 Class indoor median55 Outdoor unit56 Class outdoor median
Values in dB(A). Indoor values are those of the sheet’s reference head; each head has its own, confirmed for the chosen model. Municipal noise by-laws vary by borough.
15 · What sets it apart

What is particular about this machine.

Only facts published by ENERGY STAR, NEEP or the manufacturer.

Most EfficientENERGY STARAmong the year’s most efficient according to ENERGY STAR, on top of its cold-climate certification.
5,700BTU/h at low speedMinimum certified capacity (NEEP): it slows down instead of stopping when a single room calls.
−30 °CColdest certified pointNEEP still lists 9,200 BTU/h at a COP of 1.20 at −22 °F.
150 WBase pan heaterHeater in the outdoor unit’s base pan, against ice (NEEP).
16 · Specifications

Every number, and where it comes from.

Each line carries its source; a line with no published value is not shown.

Performance
Cooling capacity (size)18,000 BTUSheet
Certified cooling at 35 °C19,000 BTU/hNEEP
SEER2 (seasonal cooling efficiency)21.0AHRI
EER2 (instant cooling efficiency)13.0AHRI
HSPF2 (seasonal heating efficiency, region IV)10.0AHRI
HSPF2, region V (coldest)7.5NEEP
Heating
Capacity at +8.3 °C20,000 BTU/h · COP 3.91NEEP
Capacity at −8 °C20,000 BTU/h · COP 2.25NEEP
Capacity at −15 °C18,000 BTU/h · COP 2.0NEEP
Capacity at -30 °C (max.)9,200 BTU/h · COP 1.2Sheet
Modulation range5,700 – 20,000 BTU/hNEEP
Heats down to−30 °CSheet
Zones and heads
Zones on this product2 Zones (Dual Zone)Sheet
Maximum zones3 Zones (Triple Zone)Sheet
Possible indoor modelsDRAC0912F2A, DRAC18F2A, DRAC24F2A, DRADH0912F2A, DRADH18F2A, DRADH24F2A, DRADL0612F2A, DRADL18F2A, DRAF18F2A, DRAF24F2A, DRAL0612F2A, DRAL18F2A, DRAM18F2A, DRAM24F2A, DRAS09F2A, DRAS12F2A, DRAS16F2ASheet
Indoor dimensions (W × D × H)22.44 x 22.44 x 9.65 inSheet
Vertical louversAutoSheet
Horizontal louversManuel / ManualSheet
Airflow (reference head)418 CFMSheet
Indoor sound (reference head)24 – 43 dB(A)Sheet
Installation
Outdoor unit (W × D × H)31.69 x 12.99 x 21.81 inSheet
Outdoor sound55 dB(A)Sheet
Base pan heater150 WNEEP
Electrical
Voltage220 VSheet
MCA (minimum circuit ampacity)15 ASheet
MOP (maximum overcurrent protection)15 ASheet
RefrigerantR-454BSheet
Wi-FiOptionalSheet
Certifications and warranty
AHRI215359215AHRI
ENERGY STARYes · cold climate · ID 3621110ENERGY STAR
ENERGY STAR Most EfficientYesENERGY STAR
LogisVert grant (indicative)$2,400LogisVert
Warranty (compressor · parts · labour)10 yrs · 10 yrs · 6 yrsSheet
AirGreen extended warrantyPossibleSheet
17 · Official brochures

The manufacturer’s documentation, as PDF.

18 · Description

Everything we have written about this system.

Remplacer deux appareils vieillissants par un seul condenseur de 15 A

Dans un plex de deux logements à compteurs séparés, chaque appareil a longtemps été acheté séparément, par le propriétaire d'un côté et par le locataire de l'autre. Le jour où les deux arrivent en fin de course en même temps, à Saint-Bruno-de-Montarville, l'aide provinciale rend soudain réalisable ce qui n'avait jamais été envisagé : un seul système pour les deux logements. La Thermopompe 2-Zones DURASTAR Sirius Heat | 18 000 BTU - R454B fait exactement cela, avec une tête par logement et un seul appareil dans la cour.

Les cotes du système de remplacement

  • Rendement saisonnier : 21,0 SEER2, 13,0 EER2 et 10,0 HSPF2
  • À -8 °C : 20 000 BTU/h, COP de 2,25
  • À -15 °C : 18 000 BTU/h, COP de 2,00
  • À -30 °C : 9 200 BTU/h, COP de 1,20
  • Homologation ENERGY STAR, ID ENERGY STAR 3621110, désignation climat froid, chauffage jusqu'à -30 °C

Le chiffre qui compte dans un remplacement est celui de -8 °C : 20 000 BTU/h, soit plus que la capacité nominale annoncée pour l'ensemble. Un appareil de dix ans qui peinait déjà à cette température laissait les deux logements se rabattre sur leurs plinthes une bonne partie de l'hiver. Ces chiffres sont ceux du certificat AHRI 215359215, tels que publiés par le NEEP.

La subvention LogisVert de 2 400 $

Le programme LogisVert accorde 2 400 $ à cet ensemble pour un propriétaire d'une habitation existante, sous l'ID ENERGY STAR 3621110. Le montant dépend de la liste en vigueur à la date d'installation, et une aide bonifiée s'applique à certains immeubles à logements multiples, ce qui vise directement un plex. La page de la subvention thermopompes efficaces d'Hydro-Québec précise les conditions.

Un plex à compteurs séparés : décider qui alimente le condenseur

Le compteur qui portera le circuit

C'est le point que personne n'anticipe. Un ensemble multizone n'a qu'une alimentation : 220 V, MCA de 15 A, disjoncteur de 15 A, sur un circuit dédié. Les deux têtes ne sont pas alimentées séparément, elles reçoivent commande et alimentation par le câble qui suit leurs lignes. Un seul compteur paiera donc la consommation des deux logements, et cela se règle par entente écrite avant le chantier, pas après la première facture. Quand l'entente est impossible, deux appareils indépendants restent la bonne réponse et nous le disons.

Les deux têtes et le tirage des lignes

Le condenseur DRA3H18M2A mesure 31,69 x 12,99 x 21,81 pouces et s'annonce à 55 dB(A), ce qui compte dans une cour partagée. Il se pose au-dessus de la ligne de neige, à distance des fenêtres de chambre des deux logements. Chaque tête reçoit sa paire de lignes, son drain et son câble ; les deux parcours montent le long du mur arrière avant de se séparer. Nos installations sont entièrement apparentes, sans travaux à l'intérieur des murs, avec un recouvrement de finition. Les têtes se prennent parmi DRAS09F2A, DRAS12F2A, DRAC0912F2A, DRAM18F2A, DRAL0612F2A, DRADH0912F2A et les autres modèles publiés, et le châssis accepte jusqu'à 3 zones si un troisième local s'ajoute.

Ce qui est normal quand un appareil dessert deux logements

Deux occupants indépendants, un seul condenseur : quelques comportements méritent d'être expliqués aux deux côtés.

  • Quand un logement éteint sa tête, l'autre continue sans changement de consigne.
  • Un délai de trois minutes au redémarrage protège le compresseur.
  • Le condenseur dégage de la vapeur blanche pendant le dégivrage hivernal.
  • Le chauffage cesse sous -30 °C, limite reconnue par le fabricant.

Une odeur de brûlé, un disjoncteur qui saute, un code d'erreur persistant ou de l'eau qui coule à l'intérieur demandent d'arrêter l'appareil et d'appeler le service, quel que soit le logement concerné.

AirGreen et l'entretien d'un plex

Les filtres des deux têtes se rincent aux deux semaines et un entretien CVAC annuel couvre serpentins, condensat et raccords électriques ; notre service de nettoyage se planifie en une seule visite pour les deux logements. AirGreen est une entreprise familiale active depuis plus de quinze ans à Montréal, Laval, Longueuil, sur la Rive-Nord et sur la Rive-Sud, avec les licences RBQ en ventilation, en réfrigération et en électricité et une assurance responsabilité de 5 000 000 $.

Planifiez votre estimation gratuite pour la Thermopompe 2-Zones DURASTAR Sirius Heat | 18 000 BTU - R454B. Nous déterminons quel compteur portera le circuit dédié de 15 A, confirmons le montant LogisVert de 2 400 $ et remettons une soumission écrite aux deux parties.

Garantie : 10 ans sur le compresseur, 10 ans sur les pièces et 6 ans sur la main-d’œuvre, directement du distributeur.

19 · Questions

What people ask us about multi-zone systems.

Can I heat one room and cool another at the same time?

No. On a multi-zone system like this one, every head works in the same mode, heating or cooling. Each room still keeps its own set temperature.

What happens when every room calls for heat?

They share the outdoor unit’s capacity: 20,000 BTU/h at −8 °C, 18,000 at −15 °C.

How many heads can I connect?

Up to 3 on this outdoor unit. This product is configured for 2 heads.

How much is the LogisVert grant?

$2,400 according to Hydro-Québec’s list of October 1, 2026. The grant never exceeds 100 % of the cost before taxes; apply within 9 months of installation.

Is it ENERGY STAR certified?

Yes, cold climate, ID 3621110. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.

Down to what temperature does it heat?

Down to −30 °C.

Is it noisy?

Indoors, the reference head goes down to 24 dB(A). Outdoors, 55 dB(A): we place the unit away from bedroom windows.

Why a multi-zone instead of several wall units?

One outdoor unit on the wall and one circuit. In return, the rooms share the capacity, and if the outdoor unit stops, every zone stops.

What does the warranty cover?

Our sheet lists 10 years on the compressor and 10 years on parts. AirGreen extended warranty: possible.

AirGreen

A multi-zone system is planned room by room. At your home.

We measure every room, draw the line route and choose the right head for each zone. The on-site estimate is free and the quote arrives within 24 h.

RBQ 5645-9605-01Ventilation 15.8, refrigeration 15.10, electrical 16
We handle the circuitOur licence covers the electrical work
LogisVert : $2,400AHRI 215359215 checked against the list of October 1, 2026
Beware of scamsHydro-Québec does no phone or door-to-door solicitation for LogisVert
Sources checked on October 1, 2026.NEEP, Cold Climate Air Source Heat Pump List, product 389546 (AHRI 215359215): capacities and COP, modulation, SEER2, EER2, HSPF2.ENERGY STAR certified heat pump database, ID 3621110.Hydro-Québec, LogisVert eligible heat pump list (owner, existing home), file of October 1, 2026; participation guide, version 1.10.Costs: Hydro-Québec Rate D, 11.142 ¢/kWh (second tier, since 1 April 2026). Amounts shown are estimates; only the responsible bodies confirm the grant awarded.