2-Head Heat Pump DIRECT AIR DA25 (-25°C) | Outdoor: 18000 BTU
The Direct Air DA25 18 000 multi-zone heat pump heats and cools 2 rooms with a single outdoor unit. it delivers 14,300 BTU/h at −8 °C, heats down to −25 °C and qualifies for a $715 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
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.
The parts that make a multi-zone system.
Tap a part to learn more.
Outdoor unit
One compressor for the whole house. It supplies up to 2 heads and modulates from 5,700 to 16,000 BTU/h depending on what the rooms call for (NEEP).
Base pan heater
A heater keeps the outdoor unit’s base pan free of ice below 1 °C and during defrost (NEEP).
Refrigerant lines
One pair of lines per head.
Indoor heads
One head per room, each with its own remote and temperature. The combination is chosen in the “Zones” menu.
Control
Each zone is set separately.
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.
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.
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.
At −15 °C, it still delivers 70 % 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.
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.
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.
A grant you can calculate, not guess.
The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $50 per 1,000 BTU/h is the rate for ENERGY STAR heat pumps (guide v1.10).
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.
Against three other brands in its class.
Same rated size, other manufacturers. Pick the opponent.
One multi-zone or several wall units? Both sides, honestly.
We compare both options on your floor plan during the estimate.
What to know before installing a multi-zone system.
Dimensions, wiring and lines, drawn. Then our six steps.
The outdoor unit, dimensioned
One circuit for the whole house
Published sound levels, on one scale.
We use the outdoor figure to choose where the unit goes.
What is particular about this machine.
Only facts published by ENERGY STAR, NEEP or the manufacturer.
Every number, and where it comes from.
Each line carries its source; a line with no published value is not shown.
The manufacturer’s documentation, as PDF.
Everything we have written about this system.
A reliable and efficient multi-zone solution for Quebec residences
At AirGreen, we regularly install multi-zone systems in homes, condos, and plexes in Montreal, Laval, Longueuil, on the North Shore, and the South Shore. The DIRECT AIR DA25 (18,000 BTU) 2-head heat pump stands out as a balanced solution between performance, ease of installation, and controlled cost.
Designed to operate down to -25°C, this heat pump meets Quebec's climatic requirements while efficiently air conditioning two distinct zones with a single outdoor unit.
Why choose a 2-zone heat pump like the DIRECT AIR DA25?
A solution adapted to the realities of Quebec homes
In many projects we undertake in Montreal and Montérégie, clients seek to air condition two strategic areas:
- Living room + master bedroom
- Ground floor + basement
- Office + open concept area
A dual-zone heat pump like the DA25 allows for:
- Independent temperature management
- A reduction in the number of outdoor units
- A cleaner and more aesthetic installation
AirGreen concrete example
During a project in Boucherville (South Shore), a client was hesitating between two independent wall-mounted systems or a multi-zone solution. After analysis:
- The 2-head configuration allowed for savings on electrical installation
- Less outdoor space used
- Better visual integration on the rear facade
Result: a more harmonious system and immediate customer satisfaction.
Performance and energy efficiency
Capacity and efficiency
- Nominal power: 18,000 BTU
- Capacity at -8°C: 14,300 BTU
- Capacity at -15°C: 12,600 BTU
- SEER2: 22.9 (seasonal cooling)
- HSPF2: 11.0 (seasonal heating)
- COP at -8°C: 3.03
These performances ensure a good balance between comfort and energy consumption, particularly in regions like Laval and the North Shore, where winters are harsh.
According to technical documentation, the system can operate:
- In cooling from -25°C to 50°C
- In heating down to -25°C
Available subsidy
- LogisVert Program: approximately $715 (updated November 2025)
Even though this model is not classified Energy Star Cold Climate, it remains eligible for certain aids, making it an interesting choice for optimizing return on investment.
Key technical specifications
Multi-zone configuration
- Outdoor unit: DIRM-18DA25-2Z
- Zones: 2 independent zones
- Compatible indoor units:
- DIRM-09DA25-WM
- DIRM-12DA25-WM
Smart features
- Automatic louvers (vertical and horizontal) for even distribution
- Automatic restart after power failure
- Automatic defrost
- 24-hour timer
- Optional WiFi (smart home compatible)
Comfort and air quality
- Integrated biofilter
- Motion sensor
- Humidity sensor
- "Follow Me" function to adjust temperature according to the user
In several installations carried out in Longueuil, these features significantly improved comfort in bedrooms, especially by avoiding cold spots.
HVAC installation: what you need to know
Dimensions and constraints
- Outdoor unit: 35.04 × 13.46 × 26.50 in
- Outdoor sound level: 58.5 dB(A)
- Voltage: 220V
- Maximum piping length: up to 40 m depending on configuration
Important rules in multi-zone
A frequently overlooked point:
The total capacity of the indoor units must remain between 66% and 133% of the outdoor capacity.
At AirGreen, we have already corrected poorly sized installations done by other contractors, causing:
- Loss of heating performance
- Inefficient cycles
- Premature wear
Our approach
For each project in Montreal or Laval, we:
- Calculate the actual thermal load
- Validate head combinations
- Optimize BTU distribution
Sound level and daily comfort
- Indoor: 22.5 to 36 dB(A)
- Outdoor: 58.5 dB(A)
This sound level is ideal for:
- Bedrooms
- Home offices
- Condos with close neighbors
In a project in Rosemont, a client working from home specifically chose this model for its quietness. After installation, no noise disturbance was reported.
Concrete advantages observed in our clients
1. Reduced energy costs
Thanks to inverter technology and good HSPF2/SEER2 coefficients.
2. Flexibility of use
Each zone can be used independently, ideal for different schedules.
3. Simplified installation
A single outdoor unit for two spaces.
4. Reliability
Direct Air systems are designed to high quality standards, with good durability.
Points to consider before purchase
Absolutely avoid
- Undersizing indoor units
- Installing heads in poorly ventilated areas
- Neglecting drainage (very common in basements)
AirGreen advice
We always recommend:
- An on-site inspection
- Validation of actual needs
- A personalized configuration
This avoids 90% of the problems we see in after-sales service.
Warranty and reliability
- Compressor: 5 years
- Parts: 5 years
- Labor: 0 year (manufacturer standard)
An extended warranty is available through AirGreen, which we highly recommend to protect your investment.
Why choose AirGreen for your HVAC installation?
Through hundreds of installations in Montreal, Laval, Longueuil, and on the South Shore, we have developed precise expertise:
- Advanced thermal analysis
- Clean and RBQ compliant installation
- Experienced refrigeration technicians team
- Fast post-installation support
We have also corrected many poorly installed systems by other companies—proof that installation quality is as important as the product itself.
Conclusion: a strategic choice for lasting comfort
The DIRECT AIR DA25 18,000 BTU 2-head heat pump represents a reliable solution for:
- Residential properties with two main zones
- Customers seeking good value for money
- HVAC installations requiring flexibility and simplicity
Contact AirGreen today
To get a clear quote, optimal configuration, and professional installation of your heat pump in Montreal, Laval, Longueuil, North Shore, or South Shore, contact our team.
We support you at every step, from analysis to installation, with a rigorous and transparent approach.
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: 14,300 BTU/h at −8 °C, 12,600 at −15 °C.
How many heads can I connect?
Up to 2 on this outdoor unit. This product is configured for 2 heads.
How much is the LogisVert grant?
$715 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, ID 2473848. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.
Down to what temperature does it heat?
Down to −25 °C.
Is it noisy?
Indoors, the reference head goes down to 22.5 dB(A). Outdoors, 59 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 5 years on the compressor and 5 years on parts; labour is not included by the manufacturer. AirGreen extended warranty: possible.
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.