DIRECT AIR DA25 (-25°C) 3-Head Heat Pump | Outdoor Unit: 36000 BTU
The Direct Air DA25 36 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 26,800 BTU/h at −8 °C, heats down to −25 °C and qualifies for a $1,340 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
3 rooms, one outdoor unit.
Compared with the 141 multi-zone systems of 36,000 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 4 heads and modulates from 10,000 to 29,600 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 141 multi-zone systems of 36,000 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 Multi-Zone Solution for Consistent Comfort in Montreal, Laval, and the South Shore
At AirGreen, we regularly install multi-zone systems to meet the real needs of residential and multi-unit properties in Montreal, Laval, Longueuil, the North Shore, and the South Shore. The DIRECT AIR DA25 (36000 BTU) 3-head heat pump stands out for its flexibility, stable performance down to -25°C, and its ability to power multiple rooms with a single outdoor compressor.
This type of system is particularly sought after by homeowners who want an efficient HVAC installation, without multiplying outdoor units, while maintaining precise temperature control in each zone.
Multi-Zone Performance and Energy Efficiency: A Strategic Combination
Power Adapted to Quebec Realities
With a cooling capacity of 36,000 BTU and heating performance down to -25°C, this heat pump meets Quebec's climatic requirements. Unlike many entry-level systems, it maintains useful power even during cold periods:
- Power at -8°C: 26,800 BTU
- Power at -15°C: 25,200 BTU
- COP at -8°C: 1.83 (measured real efficiency)
This means that even in winter, the heat pump continues to provide efficient heating without excessive reliance on a supplemental source.
Energy Efficiency and Operating Costs
The DA25 series offers interesting performance indices:
- SEER2: 23.9 (efficient cooling)
- HSPF2: 9.5 (seasonal heating)
- EER2: 11.7
According to the technical brochure, some models in this series can reach up to 23.5 SEER and 11.5 HSPF, which confirms its position as an energy-efficient solution suitable for modern residences.
In our projects in Boucherville and Laval, we have observed energy consumption reductions of up to 30% compared to traditional electric systems.
3-Zone Configuration: Maximum Flexibility for Your Home
An ideal solution for:
- Multi-story houses with distinct rooms
- Plexes or duplexes in Montreal
- Condos with multiple living areas
- Extensions or renovations without ducts
The triple-zone configuration allows powering up to 3 indoor units, with the possibility of expansion to a maximum of 4 zones.
Indoor Unit Compatibility
The system accepts several types of units:
- Wall-mounted (most popular)
- Floor consoles
- 4-way ceiling cassettes
- Ducted units
In a recent project in Longueuil, we installed:
- 1 x 18,000 BTU unit for the living room
- 1 x 12,000 BTU unit for the upstairs
- 1 x 9,000 BTU unit for the basement
Result: homogeneous distribution, without overheating or cold spots.
Integrated Technology and Features
Smart Comfort and Automation
The indoor units offer several advanced features:
- Automatic restart
- Intelligent defrost
- 24-hour programmable timer
- Energy-saving mode
- Turbo mode for rapid temperature increase
- "Follow Me" function (temperature based on remote control)
WiFi is available as an option, compatible with smart home systems (Google, Alexa).
Advanced Air Management
An often underestimated point: airflow management.
- Automatic vertical vanes
- Automatic horizontal vanes
- Vane position memory
- Integrated humidity sensor
- Biofilter to improve air quality
In several installations in Montreal, this feature has corrected common problems of poor air circulation in enclosed rooms.
HVAC Installation: AirGreen Field Expertise
What We Observe in the Field
A common mistake when installing multi-zone systems is the incorrect sizing of indoor units.
The technical rule from the documentation:
- Total indoor capacity must be between 66% and 133% of the outdoor capacity
An incorrect calculation leads to:
- Loss of heating performance
- Imbalance between rooms
- Premature compressor wear
At AirGreen, every project includes:
- Complete thermal analysis
- Precise load calculation
- Optimized unit selection
Real Example – Laval
A client initially chose 3 units of 12,000 BTU (36,000 total). Potential result: overload.
We adjusted:
- 18,000 + 12,000 + 9,000 = 39,000 BTU (within acceptable range)
Result:
- Better stability
- Fewer short cycles
- Uniform comfort
Sound Level and Acoustic Comfort
- Indoor: 22.5 to 36 dB(A) (very quiet)
- Outdoor: 63 dB(A)
In a project in Rosemont, the client wanted a discreet outdoor unit. We installed a wall bracket with dampeners:
- Reduction of vibrations
- No perceptible noise indoors
Dimensions and Installation Constraints
Outdoor Unit
- Dimensions: 37.24 × 16.14 × 31.89 inches
- Possible installation:
- Wall-mounted
- Ground with anti-vibration base
Piping
- Maximum length: up to 80 m total (depending on configuration)
- Level difference: up to 25 m
This allows for great flexibility, even for complex properties on the North Shore.
Refrigerant and Environmental Impact
- Gas: R-410A
Although this refrigerant is still widely used, we always inform our customers that newer alternatives like R-32 exist. However, R-410A remains reliable and effective for this type of application.
Warranty and Reliability
- Compressor: 5 years
- Parts: 5 years
- Labor: 0 year (extension possible)
At AirGreen, we strongly recommend adding an extended labor warranty, especially for multi-zone systems.
Subsidies and Return on Investment
- LogisVert Grant: $1340
Even if this model is not Energy Star Cold Climate rated, it remains eligible for certain aids.
In several cases in Longueuil and Brossard, the return on investment is achieved in 4 to 6 years, thanks to:
- Reduced heating costs
- Replacement of energy-intensive electric baseboards
Why Choose AirGreen for Your DIRECT AIR Heat Pump?
Recognized Local Expertise
- Installations across Montreal, Laval, Longueuil
- Specialization in multi-zone systems
- In-depth technical analysis
Transparency and Support
- Detailed quote before work
- No hidden costs
- Personalized advice according to your property
Installation Quality
- Certified refrigeration technicians
- Compliance with RBQ standards
- Clean and durable finish
Conclusion: A Strategic Choice for Multi-Zone Comfort
The DIRECT AIR DA25 (36000 BTU) 3-head heat pump represents a reliable solution for homeowners seeking:
- Independent management of multiple rooms
- Stable performance in Quebec winters
- Optimized and durable HVAC installation
It stands out for its versatility, its ability to adapt to different configurations, and its good balance between performance and cost.
Take Action with AirGreen
For an accurate assessment, a detailed quote, or tailored advice for your property in Montreal, Laval, Longueuil, North Shore, or South Shore, contact our team today. We offer a perfectly sized and installed solution according to the best market practices.
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: 26,800 BTU/h at −8 °C, 25,200 at −15 °C.
How many heads can I connect?
Up to 4 on this outdoor unit. This product is configured for 3 heads.
How much is the LogisVert grant?
$1,340 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 2473856. 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, 63 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.