DIRECT AIR DA25 (-25°C) 2-Head Heat Pump | Outdoor: 36000 BTU
The Direct Air DA25 36 000 multi-zone heat pump heats and cools 2 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.
2 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 High-Performance Multi-Zone Solution for Precise Comfort in Every Space
At AirGreen, we regularly install multi-zone systems in homes and condos in Montreal, Laval, Longueuil, on the North Shore and the South Shore. The DIRECT AIR DA25 36,000 BTU 2-head heat pump stands out as a particularly attractive option for homeowners looking to efficiently and reliably control the temperature of two distinct zones, even in demanding winter conditions.
This model combines heating capacity down to -25°C, a flexible multi-zone configuration, and solid energy performance, adapted to Quebec's climatic realities.
Why choose a 2-head heat pump like the DIRECT AIR DA25?
Independent control of two zones
A 2-head installation allows two distinct indoor units to be connected to a single outdoor unit. This offers several concrete advantages:
- Precise temperature adjustment in each room
- Reduction of unnecessary energy loss
- Optimized comfort for different uses (e.g., living room vs. bedroom)
In several projects carried out in Boucherville and Laval, we have installed this type of system for multi-story homes, allowing for a thermal balance impossible to achieve with a classic central system.
Heating performance down to -25°C
Quebec's climate imposes high demands. The DA25 series is designed to operate efficiently:
- Heating down to -25°C
- Capacity maintenance at low temperatures
- Integrated automatic defrosting
According to technical data, this series operates within a range of -25°C to 30°C for heating and up to 50°C for air conditioning, ensuring reliable year-round use.
Detailed Technical Specifications
Outdoor Unit (DIRM-36DA25-4Z)
- Total Capacity: 36,000 BTU
- AHRI: 207743779
- Voltage: 220V
- Outdoor Sound Level: 63 dB(A)
- Refrigerant: R-410A
- Supported Zones: up to 4 (used here for 2 zones)
Energy Performance
- SEER2: 23.93
- HSPF2: 19.515
- EER2: 11.172
- COP at -8°C: 1.183
These values demonstrate a good balance between performance and energy consumption, ideal for reducing long-term electricity costs.
Compatible Indoor Units
Flexibility is one of the major strengths of this system. You can combine:
- DIRM-09DA25-WM (9,000 BTU)
- DIRM-12DA25-WM (12,000 BTU)
- DIRM-18DA25-WM (18,000 BTU)
- DIRM-24DA25-WM (24,000 BTU)
Each indoor unit offers:
- Automatic directional vanes (vertical and horizontal)
- Vane memory function
- Motion and humidity sensor
- Eco, turbo, and sleep modes
- Self-cleaning
An HVAC Installation Adapted to Montreal's Realities
Real-world example: installation in Longueuil (renovated duplex)
We recently installed a DIRECT AIR DA25 2-head system in a duplex in Longueuil:
- Zone 1: living room + open kitchen (12,000 BTU)
- Zone 2: master bedroom (9,000 BTU)
Challenges encountered:
- Piping through a load-bearing wall
- Optimizing drainage without a pump
AirGreen Solution:
- Use of discreet exterior conduits
- Adjustment of positioning to maximize air circulation
Result:
- Stable comfort in both zones
- Significant reduction in short cycling
- Client satisfied with sound discretion (22.5 to 36 dB indoor)
Multi-zone Installation: Important Technical Rules
A commonly misunderstood point concerns the total capacity of the indoor units.
According to manufacturer specifications:
- Minimum capacity: 66% of outdoor capacity
- Maximum capacity: 133%
This means that improper sizing can lead to:
- Loss of heating performance
- Uneven air distribution
At AirGreen, we systematically analyze:
- The actual surface area
- Insulation
- Sun exposure
- Occupancy habits
Advanced Features That Make a Difference
Smart Comfort
- "Follow Me" function: adjusts temperature based on the remote control
- Humidity sensor: improves perceived comfort
- Biofilter: better indoor air quality
Connectivity (WiFi option)
Compatible with:
- Google Home
- Alexa
- Smart home systems
This allows for convenient remote control, especially for secondary residences or rental properties.
Points to Consider Before Installation
What many clients don't know
-
Unit positioning is critical
Improper vane orientation drastically reduces efficiency. -
Outdoor noise must be anticipated
At 63 dB(A), poor placement can disturb neighbors. -
Drainage must be planned from the start
A common mistake is ignoring the natural slope.
Warranty and Reliability
- Compressor: 5 years
- Parts: 5 years
- Labor: 0 year (option available)
The DIRECT AIR series is designed according to high quality standards, with durability adapted to Canadian conditions.
Why choose AirGreen for your HVAC installation?
We stand out for:
- A complete technical analysis before quoting
- Clean, durable, and RBQ-compliant installations
- Total price transparency
- On-the-ground expertise in multi-zone heat pumps in Montreal and on the South Shore
Our technicians know how to optimize each installation to:
- Maximize efficiency
- Reduce energy costs
- Ensure a long system lifespan
Conclusion: A Strategic Choice for Residential Comfort
The DIRECT AIR DA25 36,000 BTU 2-head heat pump represents a reliable solution for properties requiring precise control over multiple zones. When properly sized and installed, it offers an excellent balance between comfort, efficiency, and cost.
Contact AirGreen Today
For a personalized quote, a needs analysis, or to schedule an installation in Montreal, Laval, Longueuil, North Shore, or South Shore, contact us directly. Our team will guide you towards the HVAC solution best suited for your property.
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 2 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.