6-Zone Heat Pump DURASTAR Sirius Heat | 48,000 BTU - R454B

In stock
SKU: DRA6H48M2A
48,000BTU/h · 6 heads
−30 °Cheats down to
$5,520LogisVert, indicative
ENERGY STAR® cold climateENERGY STAR Most EfficientOptional Wi-FiR-454BUp to 6 heads
Talk to a technician · 514 316-2973
Outdoor unit DRA6H48M2APossible indoor models DRAC0912F2A, DRAC18F2A, DRAC24F2A, DRADH0912F2A, DRADH18F2A, DRADH24F2A, DRADL0612F2A, DRADL18F2A, DRAF18F2A, DRAF24F2A, DRAL0612F2A, DRAL18F2A, DRAM18F2A, DRAM24F2A, DRAS09F2A, DRAS12F2A, DRAS16F2AAHRI 215415532· ENERGY STAR 3624604
In short

The Durastar Sirius Heat R454B 48 000 multi-zone heat pump heats and cools 6 rooms with a single outdoor unit. ENERGY STAR cold-climate certified, it delivers 46,000 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $5,520 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.

01 · The verdict in 10 seconds

6 rooms, one outdoor unit.

Compared with the 82 multi-zone systems of 48,000 BTU we sell. Every number on this page carries its source.

ENERGY STAR Most EfficientNEEP 389007AHRI 215415532LogisVert · October 1, 2026
+$5,520 LogisVert grantRank 1 (tied) of 67. Class median: $4,320.
+Only 55 dB(A) outdoorsRank 1 (tied) of 82. Class median: 64 dB(A).
+46,000 BTU/h at −8 °CRank 8 (tied) of 78. Class median: 36,800 BTU/h.
46,000BTU/h certified at −8 °C
−30 °Cstill heating
6heads
2.25COP at −8 °C
$5,520LogisVert, indicative
02 · The machine

The parts that make a multi-zone system.

Tap a part to learn more.

DRA6H48M2A

Outdoor unit

One compressor for the whole house. It supplies up to 6 heads and modulates from 13,000 to 46,000 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
23
28,000BTU
234
36,000BTU
2345
48,000BTU
2345Here
55,000BTU
23456

Durastar Sirius Heat R454B 48 000 · 6 zones

46,000 BTU/h
at −8 °C
$5,520
LogisVert

Up to 6 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
13,000 → 55,000 BTU/h
-8 °C
12,000 → 46,000 BTU/h
-15 °C
10,000 → 48,000 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 cooling21.2
Scale 1 – 30Median: 21.3
Rank 41 (tied) of 78 in its class.
HSPF2 · seasonal heating10.2
Scale 1 – 15Median: 10
Rank 22 (tied) of 78 in its class.
EER2 · cooling in peak heat12.0
Scale 1 – 20Median: 12
Rank 30 (tied) of 78 in its class.
COP at −15 °C2.0
Scale 0 – 4Median: 2
Rank 29 (tied) of 71 in its class.
ENERGY STAR Most EfficientCold climate · ID 3624604 · ENERGY STAR database
09 · LogisVert grant

A grant you can calculate, not guess.

46,000 BTU/h÷ 1,000 ×$120=$5,520

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 215415532). 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 82 multi-zone systems of 48,000 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-zone6 wall units
On the wall1 outdoor unit6 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$5,520 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
DRA6H48M2ADepth 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
Head 3
Head 4
Head 5
Head 6
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
28
64
20 dB(A)3040506070
24 Reference head, lowest speed43 Reference head, highest speed28 Class indoor median55 Outdoor unit64 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.
13,000BTU/h at low speedMinimum certified capacity (NEEP): it slows down instead of stopping when a single room calls.
−30 °CColdest certified pointNEEP still lists 22,600 BTU/h at a COP of 1.19 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)48,000 BTUSheet
Certified cooling at 35 °C45,000 BTU/hNEEP
SEER2 (seasonal cooling efficiency)21.2AHRI
EER2 (instant cooling efficiency)12.0AHRI
HSPF2 (seasonal heating efficiency, region IV)10.2AHRI
HSPF2, region V (coldest)8.4NEEP
Heating
Capacity at +8.3 °C49,000 BTU/h · COP 3.6NEEP
Capacity at −8 °C46,000 BTU/h · COP 2.25NEEP
Capacity at −15 °C48,000 BTU/h · COP 2.0NEEP
Capacity at -30 °C (max.)22,600 BTU/h · COP 1.19Sheet
Modulation range13,000 – 46,000 BTU/hNEEP
Heats down to−30 °CSheet
Zones and heads
Zones on this product6 ZonesSheet
Maximum zones6 ZonesSheet
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
AHRI215415532AHRI
ENERGY STARYes · cold climate · ID 3624604ENERGY STAR
ENERGY STAR Most EfficientYesENERGY STAR
LogisVert grant (indicative)$5,520LogisVert
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.

Six têtes qui modulent chacune de leur côté : l'été se gagne d'abord sur l'humidité

Un duplex converti en unifamiliale garde les cloisons de sa vie précédente : pièces refermées, corridors, parfois une pièce ajoutée que le système existant n'a jamais desservie. Un seul gros appareil souffle fort dans le salon et laisse le reste moite. La Thermopompe 6-Zones DURASTAR Sirius Heat | 48 000 BTU - R454B attaque le problème autrement : six têtes reliées à une seule unité extérieure, chacune libre de tourner lentement et longtemps.

Pourquoi six petites têtes assèchent mieux qu'un seul gros appareil

L'humidité se retire quand l'air passe lentement et souvent sur un serpentin froid. Une tête qui module garde ce contact au lieu de couper dès la consigne atteinte. Dans une pièce refermée, cela se sent avant que le thermomètre bouge. La fiche inscrit une plage intérieure de 24 à 43 dB(A) ; la vitesse basse travaille le plus l'été.

Six zones, un seul certificat

  • Homologué ENERGY STAR, désignation climat froid
  • Climatisation : 21,2 SEER2 et 12 EER2
  • Chauffage : 10,2 HSPF2, fonctionnement jusqu'à -30 °C
  • À -8 °C : 46 000 BTU/h, COP de 2,25
  • À -15 °C : 48 000 BTU/h, COP de 2
  • À -30 °C : 22 600 BTU/h, COP de 1,19

Le certificat inscrit 46 000 BTU/h à -8 °C et 48 000 BTU/h à -15 °C. Les deux points sont mesurés séparément ; nous reprenons chacun tel qu'il est publié. Le COP de 2,25 à -8 °C est celui qui pèse sur la facture : l'hiver montréalais se joue surtout là. Ces valeurs proviennent du certificat AHRI 215415532, publié par le NEEP.

LogisVert : 5 520 $ sur ce système

L'ensemble est inscrit sous l'ID ENERGY STAR 3624604 et donne droit à 5 520 $ pour un propriétaire d'une habitation existante, selon la liste en vigueur à la date d'installation, avec une aide bonifiée pour certains immeubles à logements multiples. Nous validons avant la signature. Le solde peut être réparti par nos options de financement.

Vimont : six zones à installer, et une pièce ajoutée à préparer pour l'hiver

Comment 48 000 BTU se partagent entre les têtes

La capacité nominale est celle de l'unité extérieure, pas la somme libre des têtes. Nous listons les pièces à partir d'environ 18 000 BTU/h par 1 000 pieds carrés, ajustés selon l'isolation, la fenestration, la hauteur des plafonds et l'ouverture entre les pièces. La pièce ajoutée reçoit sa tête plutôt qu'une part prise sur le salon.

Une zone fermée n'arrête pas les cinq autres

Chaque tête possède sa télécommande et sa consigne. Fermer la chambre d'amis pour l'hiver ne coupe rien ailleurs : le compresseur suit la demande restante. C'est le gain d'un montage à six zones, et la raison pour laquelle nous ne regroupons pas deux pièces sur une seule tête.

Les lignes vers chaque tête, l'unité extérieure et le circuit

Chaque tête est reliée à l'unité extérieure par son propre jeu de lignes ; le tracé se planifie avant la pose, gaines techniques et murs de refend repérés. Nos installations sont entièrement apparentes, sans travaux à l'intérieur des murs, avec un recouvrement de finition. L'unité extérieure fait 31,69 po sur 12,99 po et 21,81 po de haut, pour 55 dB(A), posée au-dessus de la ligne de neige, loin des fenêtres de chambre, voisines comprises. La fiche inscrit du 220 V, un MCA de 15 A, un disjoncteur de 15 A et un circuit dédié.

  • De la vapeur blanche au dégivrage, sans odeur
  • Un délai de trois minutes au redémarrage protège le compresseur
  • Les filtres des têtes se nettoient aux deux semaines

Une odeur de brûlé, un disjoncteur qui saute ou de l'eau sous une tête imposent l'arrêt et un appel au service. L'entretien CVAC annuel reprend serpentins, condensat et raccords, et notre service de nettoyage s'ajoute quand six têtes tournent depuis des saisons.

AirGreen, quand une maison change d'usage

Entreprise familiale depuis plus de quinze ans, nous détenons les licences RBQ en ventilation, en réfrigération et en électricité, et portons une assurance responsabilité de 5 000 000 $. L'évaluation à domicile ne coûte rien et la soumission arrive par écrit, à Montréal, à Laval, à Longueuil, sur la Rive-Nord et sur la Rive-Sud. Si quatre têtes suffisent à votre plan, nous vous le disons avant de vous en vendre six.

Demandez votre estimation gratuite pour la Thermopompe 6-Zones DURASTAR Sirius Heat | 48 000 BTU - R454B. Nous dressons le bilan pièce par pièce, planifions le tracé des lignes vers chaque tête et confirmons votre admissibilité à LogisVert.

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: 46,000 BTU/h at −8 °C, 48,000 at −15 °C.

How many heads can I connect?

Up to 6 on this outdoor unit. This product is configured for 6 heads.

How much is the LogisVert grant?

$5,520 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 3624604. 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 : $5,520AHRI 215415532 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 389007 (AHRI 215415532): capacities and COP, modulation, SEER2, EER2, HSPF2.ENERGY STAR certified heat pump database, ID 3624604.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.