How long does installation take?
Most air-source installations take one to three days. A single-zone ductless unit is often done in a day. Ducted systems and multi-zone installs take longer. Ground-source (geothermal) systems need drilling or trenching and take considerably longer.
Do I need new ductwork?
Usually not. Ducted heat pumps typically connect to your existing ducts. The contractor should check that your ducts can move enough air. If they cannot, or if you have no ducts at all, ductless mini-splits are the alternative.
Will I need an electrical upgrade?
Sometimes. Older homes with smaller electrical panels may need an upgrade, especially if you also have electric backup heat. A good contractor checks your panel during the quote visit, not on installation day.
Where does the outdoor unit go?
Somewhere with clear airflow, raised above the usual snow depth and away from roof drips that could ice it over. It should be close enough to the indoor unit to keep the line set short.
What should a good quote include?
- Make and model numbers of the outdoor and indoor units, sold as a matched system.
- Heating capacity, based on a heat-loss calculation for your house.
- What happens to your existing furnace or air conditioner.
- Electrical work, permits and warranty terms, in writing.
- Whether the contractor participates in Home Renovation Savings and will submit the rebate paperwork.
Questions to ask any installer
- Do your technicians hold the Ontario refrigerant-handling certificate (ODP card) and the trade certificate for refrigeration and air conditioning work?
- Are you a participating contractor in Home Renovation Savings?
- Will you size the system from a heat-loss calculation?
- Who do I call if something goes wrong in the first winter?
Common questions
Are heat pumps noisy?
Modern units are quiet, often quieter than an older air conditioner. Placement matters, so ask your installer to keep the outdoor unit away from bedroom windows where possible.
General information for Ontario homeowners, not advice for your specific home. Rebate programs and rules change, so confirm current terms before you buy.