Where Should the Outdoor Heat Pump Unit Go?
Planning a heat pump around Canada's new rebate? Check outdoor-unit airflow, snow, drainage, noise and service access before agreeing on the location.
- Hudson HVAC
- 7 min read
Information checked October 25, 2026.
Choose an outdoor heat pump location with the installer before approving the final installation plan. The position needs to suit the specific equipment, allow maintenance, and work through winter. An empty patch beside the house or the existing air-conditioner pad is a candidate to assess, not an automatic answer.
For homeowners preparing for Canada’s new National Heat Pump Rebate, this is useful work to do while the remaining program details are pending. A location decision can reveal installation work that a headline equipment price does not describe. This guide concerns air-source systems with an outdoor unit; it is not a layout guide for an in-suite water-source condo heat pump.
Start with two possible locations and a few photos
NRCan’s homeowner guidance recommends asking the contractor where the indoor and outdoor units will be installed and about the equipment’s sound rating. Turn those questions into a record you can both refer to.
Before the site visit, label possible positions A and B on photos of your property. Include a wider view showing nearby windows, doors, paths and the area above the position. Take another view looking back toward the house so the installer can understand how the space is used. If there is only one obvious candidate, ask whether an alternative is feasible rather than inventing a second one.
Add observations that a single visit may miss: where you normally put cleared snow, which gate is used for deliveries, and whether you plan a fence or patio change. These notes are your contribution to the assessment. Leave equipment clearances, mounting design and the final location to the qualified installer.
Confirm airflow and a usable service route
The City of Vancouver’s heat-pump noise guide emphasizes preserving outdoor airflow and following the manufacturer’s instructions. That equipment guidance is useful here; Vancouver’s municipal noise limits are not Ontario’s rules. Ask the installer to show which requirements apply to the exact model on the quote.
Do not treat “it fits between the wall and fence” as sufficient confirmation. Have the installer mark the required open space on the site photo or drawing, including the access needed to work on the equipment. If you want a decorative screen, include that in the discussion before buying it. Ask for confirmation that the proposed arrangement preserves the required airflow and access.
Also walk through the route a service person would use. Record any gate, stored items or other practical obstacle that needs addressing. A clear plan should tell you both where the unit sits and how it can be reached after the installation crew leaves.
Look at the location as it will be in February
Save on Energy’s installation and commissioning guide identifies roof driplines, drifting snow, runoff and defrost meltwater as placement concerns. Water from defrosting can refreeze and create a slip hazard. A dry, unobstructed location during an autumn visit does not resolve those winter questions.
Ask the installer where water will go and what support or site preparation is proposed. Point out regularly used walking routes and places where you have seen snow or ice collect. Request a specific answer for the chosen position rather than “drainage included.” The design should explain the destination of the water, not simply that it leaves the unit.
If the proposal includes a stand, pad, bracket or drainage work, have the item and any exclusions identified in the scope. Do not choose a mounting height from a generic online example; the installer needs to assess the actual model and site conditions.
Discuss noise before choosing the least visible spot
The City of Toronto’s air-source heat pump retrofit guide advises considering neighbour impacts and equipment noise specifications. Its location guidance also highlights snow and ice that can obstruct airflow. Appearance is one consideration among several.
Tell the contractor which nearby rooms are bedrooms or workspaces, including relevant neighbouring windows visible from your property. Ask how the equipment choice and proposed location address those spaces. Have the installer check the applicable municipal noise rules; Toronto publishes its noise requirements here.
A brochure’s sound number alone is not confirmation that a particular installation complies. The useful outcome is a site-specific explanation and a clear person to contact if the installed system needs attention.
Use this location comparison at the site visit
Create one short record for each feasible position. This is a homeowner planning aid, not a government application form. Mark an unanswered question pending rather than assuming it is included or approved.
| Decision | Record for location A and location B |
|---|---|
| Exact position | Labelled photo or sketch, proposed equipment model and assessment date. |
| Required open space | Installer’s confirmation of clearances, airflow and maintenance access. |
| Winter conditions | Site concerns identified and the proposed response. |
| Water and support | Drainage destination, mounting arrangement and work included in the price. |
| Nearby occupied spaces | Noise questions raised and how the proposal addresses them. |
| Connections and finishing | Proposed route into the home, visible coverings and finishing responsibilities. |
| Outstanding decisions | Required checks or approvals, responsible contact and next action. |
Then ask the contractor to recommend a position and explain the tradeoff. For example, if one option requires more site preparation, get that work priced before comparing totals. Do not pick solely on the shortest connection route or the lowest initial allowance.
Save the chosen version with the accepted proposal. If the crew proposes moving the unit on installation day, ask what changes in the assessment, price and scope before agreeing. Our equipment-substitution checklist is also useful if the model changes. Once the work is finished, use the installation handover checklist to collect the final record.
Keep the site plan and the rebate decision separate
The Prime Minister’s October 8 announcement introduced the $2 billion home-retrofit investment including the National Heat Pump Rebate. The federal page checked today still describes an early-2027 portal. It says eligible households installing eligible heat pumps from November 1, 2026 will be able to apply after launch, with further eligibility, equipment and application details due November 1.
Those are announced terms, not approval for your project. They do not confirm that a particular stand, drainage change, landscaping job or relocation expense will be reimbursed. Keep those costs identifiable and verify the applicable eligible-expense rules before subtracting an expected rebate from the project budget.
Ontario’s current Home Renovation Savings heat pump program has a separate sequence: a participating contractor submits the pre-installation application, and approval is mandatory before installation. The federal announcement does not replace that requirement. Confirm any proposed combination of incentives under the relevant program rules.
Bring the location questions to Hudson
Hudson offers heat pump installation, service and rebate guidance in Toronto and the GTA. Contact Hudson with your existing heating type and the site photos you want to discuss. For existing condominium equipment, our heat pump repair and replacement service is a relevant starting point; the building system and any required approvals need their own assessment.
For program updates, join Hudson’s heat pump rebate interest list. Hudson is an independent service provider. This is an interest list, not a government application, eligibility approval, funding reservation or route to early funding priority.
Common questions
Can a heat pump use the same location as my old air conditioner?
Possibly, but have the installer reassess that position for the proposed model and winter operation. Confirm airflow, snow exposure, defrost drainage, noise and service access before assuming the old location is suitable.
Is there one clearance distance that works for every heat pump?
No. Ask the installer to identify the proposed model’s installation requirements and any applicable local rules, then show how the chosen position meets them. A generic distance from a wall is not a complete site plan.
Will the new federal rebate pay for a stand or drainage work?
Do not assume those costs will be covered. Keep site-preparation items separately identified and check the final eligible-expense rules. Necessary installation work is not automatically a reimbursable expense.