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Ducted heat pump installation in Courtenay

One system, every room, through ductwork that is already in the house.

A ducted heat pump heats an entire house from one outdoor unit through existing ductwork. Central ducted systems carry the largest Energy Savings Program rebates at up to $13,000, and BC Hydro adds $4,000 where the system meets 100 percent of the heating load at −5°C. Coverage runs from Comox through Royston and Union Bay.

Where a forced-air furnace is already in place, the ductwork is the expensive part and it is already paid for. A ducted heat pump replaces the furnace and uses that network, which is why it reaches the top of the rebate tables. The work is in confirming the ducts are worth keeping.

Whether the existing ducts can be reused

Duct runs sized for a gas or oil furnace move air at higher temperatures and lower volumes than a heat pump does. Undersized returns are the usual finding, and they show up as rooms that never quite reach temperature rather than as an obvious fault. Sizing is confirmed before the equipment is chosen, not after.

The heat-loss calculation is not optional

BC Hydro's whole-home rebate requires a CSA F280-12 heat-loss calculation from the contractor. It is also what separates a system that holds temperature at −5°C from one that hands the job back to backup heat every cold snap.

Whole-home against partial-home

The two BC Hydro amounts describe two different jobs. $4,000 requires the heat pump to meet 100 percent of the heating requirement at −5°C. $1,500 applies where it meets 50 percent or more, with something else covering the remainder. Which one a house qualifies for is a design decision made before installation, not a discovery made afterwards.

What's included

  • Central ducted heat pump installation

    Whole-house heating and cooling through the existing duct network.

  • Furnace-to-heat-pump changeover

    Removal of the existing furnace, then an air handler and outdoor unit in its place.

  • Ductwork assessment and return sizing

    Static pressure and return air measured to confirm the ducts can carry the airflow.

The installation process

  1. 1

    Duct survey and heat-loss calculation — static pressure, return sizing and a CSA F280-12 calculation together decide whether ducted is the right call at all.

  2. 2

    Rebate path chosen — whole-home or partial, income tier confirmed, pre-registration filed before anything is ordered.

  3. 3

    Changeover and commissioning — furnace out, air handler and outdoor unit in, airflow balanced, then the rebate claim.

In practice

Situation
A 1970s split-level in Comox with an oil furnace and original ductwork, sold in an estate and being brought up to standard before rental.
Complication
The return air path had been reduced during a basement finish, so the duct network could not carry the airflow a whole-home system needed.
Resolution
Enlarging two returns brought static pressure into range and kept the whole-home rebate on the table. The alternative would have dropped the project to the partial-home amount.

People also ask

Can a heat pump use the ductwork from an oil furnace?

Usually, though returns often need enlarging. The check is static pressure and return area against the airflow the new equipment needs, and it happens before equipment selection.

Does a ducted heat pump cool the house as well?

Yes, through the same ducts, which is why summer performance is part of the sizing conversation in the Comox Valley rather than an afterthought.

Is a backup heat source still needed?

Cold-climate equipment holds rated capacity well below anything this coast sees. Backup is retained where a whole-home rebate is not being pursued, or where the electrical service argues for it.

Serving nearby communities

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