Heat pump services · Duncan
Ducted & Central Heat Pump Installation in Duncan
We install ducted and central systems for homes with existing ductwork, sized for Duncan's -6°C winter design temperature.
Duncan Heat Pumps installs ducted and central heat pumps across Duncan and North Cowichan for homes with existing forced-air ductwork. We size every system to the region's -6°C winter design temperature. You can expect a central ducted system to cost $8,000 to $18,000 before rebates. CleanBC's Energy Savings Program offers up to $13,000 for an income-qualified electric-heated home, while a fossil-fuel switch qualifies at its own income level.
A ducted or central heat pump connects to your home's existing forced-air ductwork and heats and cools the whole house from one outdoor unit, in place of or alongside a furnace. It suits homes that already have ductwork from a previous furnace or central air system. We size your system to a heat-loss calculation for Duncan's -6°C winter design temperature, and we install it as a CleanBC Better Homes registered contractor.
A central ducted heat pump installation in Duncan typically runs $8,000 to $18,000 before rebates, depending on system size and whether your electrical panel needs upgrading.
What's included in your ducted installation?
We size your system, install the outdoor condenser and indoor air handler, connect to your existing ductwork, complete the electrical wiring and run start-up testing. We remove the old equipment on completion.
How do we size a system for your house?
Duncan's winter design temperature is -6°C under the BC Building Code, with 2,980 heating degree-days below 18°C. We calculate your heat loss using your insulation, windows and home size so your ducted system keeps you warm on the coldest winter night.
What rebates apply, and why does a registered contractor matter?
CleanBC's Energy Savings Program is income-tested and pays up to $13,000 to a qualifying electric-heated home, or at a separate income tier for a fossil-fuel conversion, and Duncan and North Cowichan both add a $350 municipal top-up on qualifying electric heat pump installations. Only work completed by a CleanBC Better Homes registered contractor qualifies for the program.
How we size a ducted system
Sizing a central ducted heat pump requires a thorough heat-loss calculation. We never guess system size or base our recommendations on the equipment you currently have. Older furnaces were often oversized, which causes modern heat pumps to short cycle, waste electricity, and fail to control humidity properly.
Instead, we evaluate your home's physical structure during our assessment. We measure window sizes, glazing types, insulation depth in ceilings and walls, exterior wall exposure, and overall air leakage. We also consider how your family uses the space and how air moves through your ductwork.
By calculating the exact rate at which heat escapes your home on the coldest days of the year, we select a system with the right capacity. A correctly sized ducted system runs smoothly, holds steady temperatures, and provides efficient heating and cooling throughout your entire home.
Using the ductwork you already have
If your home already has forced-air ductwork, a central heat pump connects directly to that existing network. In most cases, existing ducts can handle the airflow required for a new heat pump system, saving you the expense of installing new air channels through your walls.
During our initial visit, we inspect your ductwork thoroughly. We check the size of the supply and return trunks, look for air leaks or loose connections, and evaluate overall airflow capacity. If certain registers deliver weak airflow or if duct sections require sealing, we identify those needs before providing a quote.
Connecting a modern heat pump to well-maintained ductwork provides consistent, balanced temperatures in every room. The central air handler replaces your old furnace, using your existing vents to distribute warm air in winter and cool air in summer. This makes a ducted heat pump an ideal upgrade for homes with existing forced-air systems.
Installation day for a ducted system
On installation day, our team arrives early to protect your floor surfaces and set up our workspace. We begin by carefully disconnecting and removing your old furnace or heating unit.
Next, we position the new indoor air handler and connect it to your existing duct network, ensuring all supply and return joints are sealed tight. Outside, we set the outdoor unit on a level pad and run insulated refrigerant lines and electrical wiring between the two units.
Our Refrigeration and Air Conditioning Mechanics complete the refrigerant connections, pressure test the lines, and evacuate the system to remove moisture. An electrical permit is normally required for a heat pump installation, and you can apply for it yourself. Once wiring is complete, we commission the system, test all operating modes, and walk you through your new thermostat controls before leaving your home clean.
What's included
Ducted heat pump installation
We install ducted heat pumps that replace or supplement your existing forced-air furnace.
Central system sizing
We run a heat-loss calculation against Duncan's -6°C design temperature before we quote any equipment.
The installation process
- 1
Free in-home assessment — We run a heat-loss calculation against the -6°C design temperature, check your electrical panel, and review your CleanBC rebate eligibility.
- 2
Flat-rate quote — We size the system for your home and itemize the price in writing.
- 3
Permitted installation — We connect your new heat pump system to your home's existing ductwork.
- 4
Start-up and rebate paperwork — We commission the system, walk you through it, and help you submit the CleanBC and municipal rebate paperwork.
Local conditions
We build your ducted system to hold its output at Duncan's -6°C design temperature through 2,980 heating degree-days below 18°C each year. We also check your electrical panel's capacity during that same visit, so nothing about the quote changes once we're on site.
People also ask
Can a ducted heat pump use my home's existing ductwork?
Yes, when your ductwork is in good condition. We size your system to your home's heat-loss calculation before we connect it.
Will a ducted heat pump keep up at -6°C?
We use cold-climate-rated equipment sized against Duncan's -6°C design temperature in our heat-loss calculation.
Is an electrical permit required for a ducted installation?
Yes. Technical Safety BC requires an electrical permit for most heat pump installations.
How much can CleanBC's rebate offset a ducted installation?
CleanBC's Energy Savings Program is income-tested and pays up to $13,000 to a qualifying electric-heated home, or at a separate income tier for a fossil-fuel conversion, plus a $350 municipal top-up from Duncan or North Cowichan.
For related help, see ductless mini-split installation and fuel conversions, or compare typical prices in the heat pump cost guide.
Heat pumps in nearby communities
Keep exploring
- Compare heat pump costsTypical price ranges before and after rebates.
- Ductless Heat Pump InstallationWe install single- and multi-zone ductless mini-splits across Duncan and the Cowichan Valley, sized to a heat-loss calculation with CleanBC rebate eligibility.
- Oil, Gas & Baseboard Furnace ConversionsWe convert oil, gas or electric baseboard systems to heat pumps in Duncan and show you which CleanBC or Home Renovation Rebate program and permit apply.
- Duncan Heat Pumps home
Ready for a quote on heat pump installation in Duncan?
We offer free in-home estimates across the Cowichan Valley.
Text or call (236) 801-1801