HITACHI airHome800 Wall-Mounted Heat Pump | 12000 BTU (-30°C)

• WiFi: Included
• Warranty (Compressor - Parts - Labor): 10-10-0
• Additional Warranty: Possible
• Piping: 1/4 - 3/8
• Voltage: 220 V
• Sound Pressure Level (Outdoor): 52.0 dB(A)
• Sound Pressure Level (Indoor): 30 / 48 dB(A)

Smart and constant comfort for winters in Montreal , Laval and Longueuil

Why the airHome800 12,000 BTU is perfect for homes and condos in Greater Montreal

At AirGreen, we install wall-mounted heat pumps designed to perform in northern climates. The 12,000 BTU HITACHI airHome800 combines high efficiency, quiet operation, connected control, and self-cleaning technologies. It maintains reliable heating down to -30°C , with 100% heating capacity at -20°C . The result: stable comfort, controlled energy bills, and fewer HVAC maintenance calls throughout the seasons on the North Shore and South Shore .

What you actually gain on a daily basis

Efficient heating in cold climates

• 12k model rated heating capacity : 13,500 BTU/h (range 4,700–19,000 BTU/h). Maximum reported capacity at -30°C: 6,000 BTU/h .

• Adaptive Defrost Tech : shorter, targeted defrosts to limit heat loss during frost episodes.

• Maintains 100% at -20°C : useful during the cold spells of January/February in Montreal .

Efficient cooling and discreet dehumidification

• 12k Nominal Cooling Capacity : 12,500 BTU/h (range 5,000–14,000 BTU/h). SEER2 25.0 and EER2 14.5 .

• Dry mode : up to 4.5 L/h of dehumidification on the larger sizes in the range; smaller models offer a proportional capacity.

Healthier air, easier maintenance

• FrostWash 3.0 : 3-step cycle (heating to 56°C, freezing to -15°C, melting) that removes impurities from the exchanger, with proven reduction of viruses (99%) , bacteria (99%) and mold (95%) .

• Mold Guard 2.0 : 24/7 internal monitoring; automatic drying of the indoor unit to prevent mold growth.

• PM2.5 activated carbon filter + stainless steel pre-filter : captures fine particles in a few hours.

Silence and comfort at night

• Advertised interior noise level 30 dB(A) in silent mode on 9k/12k sizes.

• SleepSense : the temperature automatically adjusts according to the sleep profile, limiting nighttime overheating and consumption.

Connected control and useful automations

• airCloud Go (Wi-Fi included in the unit): remote control, FrostWash activation , cost estimation, error code display.

• Smart Eco & Smart-Fence : absence/presence detection and geofencing to automatically lower consumption when the home is empty.

• Compatibility : airPoint H700 wall control (optional) and Alexa/Google Home integration.

Essential Technical Data Sheet (12,000 BTU)

• Models : Indoor RAK-XJ12PHAA ; Outdoor RAC-XJ12WHAA .

• Refrigerant : R-32 with lower GWP; voltage 230 V single phase, MCA 14 A , MOP 25 A.

• Efficiency : SEER2 25.0 , HSPF2 11.5 (Region 4) / 8.7 (Region 5) , COP 3.12 at 47°F .

• Sound levels : indoor 30–48 dB(A) depending on speed; outdoor 52 dB(A) .

• Connections : 1/4–3/8 (liquid/gas), 5/8 drain ; max. total length 30 m and max. drop 20 m .

• Dimensions (approx.) : indoor unit 1050×255×294 mm; outdoor unit 850×298×650 mm.

For what surface area? Our sizing guidelines

For a well-insulated home in Greater Montreal, a 12,000 BTU typically covers 40 to 65 m² (approximately 430–700 ft² ), depending on room configuration, orientation and airtightness.

• Open condos (Plateau-Mont-Royal, Griffintown) : 12k BTU is often suitable for the living room-kitchen + adjacent bedroom.

• Townhouses (Villeray, Rosemont) : perfect for a semi-open ground floor; the upper floor may require a second wall head.

• Bungalows (Laval, North Shore ) : 12k in the living area + air transfer to the bedrooms.
  Our assessments include a heat load calculation adapted to local freeze/thaw cycles and peaks at -25°C to -30°C .

Best HVAC Installation Practices by AirGreen

Indoor unit location

• Installation height: 7.5 to 8 ft to optimize stratification and left/right air sweep.

• Free clearance on the sides to allow access to the removable side covers and the removable condensate tray.

• Avoid a very cold wall or a narrow corridor: prioritize a central area to serve several rooms.

Installation of the outdoor unit (Montreal, South Shore )

• Heavy-duty wall mount clear of snow; snow protection accessory recommended for exposed sites.

• Respect the line length/height (30 m/20 m) and 1/4–3/8 fittings .

• Continuously insulated refrigeration lines, controlled 5/8 drain slope, and compliant 230V wiring.

Commissioning and useful settings

• Calibration of the motion detector and Smart Eco scenes to avoid overconsumption during the day.

• Weekly programming: Comfort/Eco slots realistic for work schedules in Longueuil and Laval .

• airCloud Go pairing: consumption monitoring, notifications, remote diagnostics.

HVAC Maintenance: The Simple Plan That Extends Performance

• Filter cleaning : Vacuum every 4–6 weeks. FrostWash 3.0 and Mold Guard 2.0 reduce clogging between services.

• Spring/autumn check : pressures, temperature probe, tank and exterior anti-corrosion pan .

• Winter clearance : Keep 30–60 cm around the outdoor unit for efficient defrosting ( Adaptive Defrost ).

Common mistakes to avoid (AirGreen field feedback)

1. Undersizing a closed room with long corridors: prefer an additional head rather than a single forced 12k BTU.

2. Installing the outdoor unit too low in a snowy driveway: risk of sucking in powder snow and prolonged icing; choose a high pedestal + snow guard.

3. Ignore humidity management : Dry mode in summer and low speed 30 dB(A) flow rates at night improve perceived comfort.

4. Forget the airCloud Go app: without Smart-Fence scenarios, consumption can increase unnecessarily.

Local case studies

New condo in Griffintown (45 m²)

We installed an airHome800 12k with lines $1/4–3/8$ over 8 m, 5/8 insulated drain , and SleepSense programming. Result: stable 23°C, 30–34 dB(A) perceived at night, notable drop in humidity in July.

Duplex in Villeray (ground floor 60 m²)

The wall-mounted outdoor unit with snow guard ; Adaptive Defrost limited shutdowns during the icy storm. airCloud Go monitoring helped optimize weekday Eco slots.

Bungalow in Laval (living area 55 m²)

South facing, large windows: we calibrated the vertical/horizontal sweep and recommended air transfer for the bedrooms. The client appreciated the odor reduction thanks to FrostWash 3.0 .

Why choose AirGreen?

• Nordic expertise : precise sizing for Montreal , Laval , Longueuil , North Shore and South Shore .

• Transparent installation : prices explained in advance, quick appointments, careful finishing (line paths, discreet trunking).

• Connected monitoring : assistance with using airCloud Go , fine-tuning your scenarios and energy-saving advice.

Quick Technical Summary (12k)

• R-32 , SEER2 25.0 | HSPF2 11.5 (R4) / 8.7 (R5) | EER2 14.5 | 230 V | MCA 14 A | MOP 25 A | 30 dB(A) mini | Lines 1/4–3/8 | Max 30 m / 20 m | 100% at −20 °C , operation down to −30 °C .

Call to action

Ready for reliable comfort all year round? Contact AirGreen for a 100% free on-site estimate in Montreal , Laval , Longueuil , North Shore and South Shore . We'll guide you from model selection to commissioning and connected setup for lasting savings.