A neat project in a tight residential environment: performance, silence and integration on a terrace
In Brossard , on the South Shore of Montreal , our team was commissioned to install a Goodman wall-mounted heat pump in a townhouse with a wooden deck and openwork partition. The client wanted three things: stable comfort in summer and winter , discreet equipment to preserve the peace and quiet of the neighborhood, and a clean HVAC installation that respects clearances, ventilation and terrace installation rules.
Home context and client objectives
The property is located in a dense residential area where outdoor units are often close to lot lines and living areas. The terrace serves as both a relaxation area and a gateway to the courtyard. Our priorities:
-
Ensure free air diffusion around the condenser despite the decorative partition.
-
Limit as much as possible the transmission of vibrations to the terrace floor and to the adjoining walls.
-
Simplify access for annual maintenance without hindering the use of the terrace.
Choosing a Goodman single-zone wall-mounted heat pump is essential: a proven, serviceable solution, compatible with the needs of a main living area of 12 to 18 k BTU depending on the load calculation and insulation. We size the equipment based on the glazed surfaces, sunlight and the actual heat losses/loads of the home.
Why Goodman for this project?
Goodman offers a wall-mounted range renowned for its reliability , ease of maintenance and very competitive value for money . In our practice, these units:
-
Maintain high efficiency over a wide temperature range, with modulation to stabilize comfort and reduce consumption .
-
Offer quiet operation (variable fan speed and night mode on some models).
-
Integrate well with AirGreen HVAC maintenance programs (cleaning, leak checks, parameter updates).
For this type of equipment, when low-temperature performance is met, Quebec subsidies or efficiency programs may apply (depending on the season and energy rating criteria). We always guide our clients on eligibility and required documentation.
Technical details of installation on the terrace
Vibration support and decoupling
The outdoor unit is placed on raised feet with anti-vibration pads . This assembly:
-
mechanically isolates the machine from the wooden decking,
-
prevents the transmission of solid-borne noise ,
-
guarantees sufficient ground clearance for water drainage and air circulation.
Two side brackets reinforce the base and facilitate leveling. The anchors are sized for dynamic loads and freeze-thaw cycles.
Ventilation and clearances
The openwork partition creates a visual screen effect without hindering air intake . We respect:
-
sufficient rear clearance facing the covering,
-
generous front clearance in front of the grille,
-
a height that avoids the accumulation of blown snow.
Our technicians check air speeds and static pressures to rule out any risk of recirculation, especially in a corner of the terrace.
Refrigeration path and sealing
The drilling is carried out in line with the exterior wall with a controlled slope for drainage. The refrigeration line route is short and direct (approximately 6 to 8 m round trip), which limits pressure losses. We:
-
insulate the copper pipes along their entire length,
-
let's install exterior capping to match the vinyl covering,
-
urethane seals for a durable air-water barrier .
Power supply and disconnection
Near the unit, we install an outdoor disconnect box for lockout and service interventions. The dedicated circuit (240 V) is sized according to the device nameplate and protected at the panel. Connections are tested with a clamp ammeter and megohmmeter when necessary.
Noise and neighborhood management
On a terrace, sound perception is an issue. Our approach:
-
Anti-vibration pads + torque-controlled tightening to avoid chassis resonances.
-
Silent mode programmed for sensitive periods (evening/night), when the model logic allows it.
-
Orientation of the air stream to avoid direct blowing towards the partition and limit turbulence.
Result: a controlled noise level , perfectly compatible with the proximity of rest and dining areas.
Commissioning: rigor and controls
-
Deep vacuum draw to a stable micron level, drift check, then valve opening.
-
Leak check (soapy/electronic inspection as required).
-
Functional measurements : intensity, subcooling/superheating according to manufacturer logic, supply/return temperatures.
-
Optimization of parameters : ventilation speeds, orientation of the interior head flaps, temperature and humidity settings.
-
Submission of an installation report (photos, serial numbers, line lengths, commissioning values). This file facilitates warranty management and HVAC maintenance .
Recommended maintenance and durability
To protect investment and maintain seasonal returns :
-
Annual cleaning of the indoor unit (coil, turbine, condensate tray) and gentle rinsing of the outdoor coil.
-
Checking the fasteners, silent blocks and leveling the support (the wood changes with the seasons).
-
Inspection of insulation/capping and sealing to prevent water infiltration.
-
Maintain clearance around the condenser (vegetation, patio furniture, BBQ) to prevent the machine from suffocating.
Our AirGreen maintenance plans ensure consistent performance and extend component life.
Results obtained for the Brossard house
Upon commissioning, the customer notes:
-
a uniform temperature in the living area,
-
notable responsiveness during peak sunshine periods,
-
a very low level of exterior and interior noise ,
-
electrical consumption optimized by modulation.
We leave the terrace space free and functional , the unit being compact, well cleared and easy to access for maintenance.
Best practices for installing on a terrace (AirGreen checklist)
-
Choose a ventilated location that complies with manufacturer clearances and municipal regulations.
-
Provide a decoupled and stable support (raised feet, pads).
-
Keep the refrigeration path as short as possible; take care with the insulation .
-
Install an accessible disconnect switch and protect the electrical conduit.
-
Anticipate snow and ice (ground clearance; if necessary, snow guard and heightening).
-
Schedule annual maintenance : The performance of a heat pump depends on clean exchangers and good airflow.
AirGreen: your HVAC partner on the South Shore and throughout Greater Montreal
We work weekly in Montreal, Laval, Longueuil, the North Shore and the South Shore on similar projects: townhouses, plexes, condos with terraces or balconies. Our added value: precise diagnosis , meticulous HVAC installation and after-sales follow-up with a single point of contact.
Do you have limited space, a close neighbor, or a terrace to preserve? We adapt the layout to combine aesthetics, silence, and performance —and we also support you with grant applications when the equipment and configuration are eligible.
What the customer remembers
-
Four-season comfort , even in a tight urban environment.
-
Peace and quiet on the terrace thanks to the anti-vibration mounting and the correct orientation of air flows.
-
Clean installation with easy access for maintenance and complete warranty documentation.
For a wall-mounted heat pump project on a terrace in Brossard or elsewhere in Greater Montreal , call on AirGreen: we transform space constraints into sustainable and efficient solutions .