If you’re putting in a heat pump, one of the first decisions is whether to go ducted (a central system that pushes conditioned air through ductwork) or ductless (a mini-split with wall or ceiling units that condition rooms directly).

The short answer: if your home already has good ductwork, ducted usually makes the most sense. If it doesn’t - or you want room-by-room control - ductless is often the better fit. Both use the same core heat pump technology, and both heat and cool. The difference is how the conditioned air gets delivered.

This guide walks through how each one works, where each wins, and the cost and comfort trade-offs, so you can make the call for your Fraser Valley home.

How each system works

Every heat pump has an outdoor unit that moves heat using refrigerant and a compressor. What changes is what happens indoors.

A ducted (central) heat pump connects to an indoor air handler, usually in a closet, basement, or mechanical room. That air handler pushes conditioned air through your existing duct network to registers in each room - the same way a forced-air furnace does. One thermostat controls the whole home.

A ductless (mini-split) heat pump skips the ducts entirely. The outdoor unit connects by a small refrigerant line to one or more indoor heads mounted on a wall, ceiling, or floor. Each head conditions the space it’s in, and each zone can be set to its own temperature.

Same technology, two delivery methods. That single difference drives everything below.

When ducted wins

A ducted system is usually the stronger choice when:

• You already have good ductwork. If your home has a furnace and sound, well-sealed ducts, a ducted heat pump uses what’s already there. This is the most common situation in newer Fraser Valley homes.

• You want whole-home even temperatures from one thermostat. Central delivery spreads conditioned air evenly to every room without wall units in each space.

• You want the equipment out of sight. The air handler lives in a mechanical room and the registers are the only visible part - no indoor heads on the walls.

• You’re already replacing a furnace. If a forced-air furnace is on its way out, swapping in a ducted heat pump (or a dual-fuel setup) is a natural fit. We cover that in our heat pump vs. gas furnace guide.

The catch: ducted only makes sense if the ductwork is in good shape. Leaky, undersized, or poorly laid-out ducts waste energy and hurt comfort. Part of the Home Energy Assessment is checking whether your existing ducts are up to the job.

When ductless (mini-split) wins

A ductless system is usually the better fit when:

• You have no ductwork - or bad ductwork. Homes heated by baseboards, radiators, or an old boiler often have no ducts at all. Running new ducts through a finished home is invasive and expensive. A mini-split avoids that entirely.

• You’re adding on or finishing a space. A garage conversion, a bonus room, a suite, or a finished basement is easy to condition with its own head without extending the main system.

• You want room-by-room zoning. Each indoor head runs independently. You can keep bedrooms cooler at night and the living room warm in the evening without heating empty rooms.

• You live in an older home. Many older Fraser Valley homes were never built for forced air. Mini-splits let you modernize heating and cooling without tearing into walls and ceilings.

• You want targeted comfort. One room that’s always too hot or too cold - an upstairs bedroom, a home office, an addition on a slab - can get its own head sized for that space.

The trade-off: indoor heads are visible, and covering a whole home with several heads can cost more than a single ducted system. But for the right home, mini-splits solve problems ducts can’t.

Multi-zone systems: the middle ground

You aren’t locked into one head. A multi-zone mini-split runs several indoor heads (commonly two to five) off a single outdoor unit. Each head is its own zone with its own setting.

This is a strong option for homes with no ductwork but several spaces to condition - a main-floor living area, two upstairs bedrooms, and a basement suite, each on its own control - with fewer outdoor units cluttering the exterior.

Some homes land on a hybrid: a ducted system for the main floor where ducts already run, plus a mini-split head for an addition or a problem room the ducts never reached. There’s no rule that says you have to pick one and only one.

Cost and comfort trade-offs

Both systems deliver heating and cooling in one piece of equipment, both use cold-climate inverter technology rated to -25°C, and both qualify for the same BC rebates - up to $11,000 stacked across CleanBC, Canada Greener Homes, and utility programs (we break that down in our BC heat pump rebate guide). The trade-offs come down to delivery, appearance, and how many zones you need.

On cost, the honest answer is it depends on the home. If good ducts already exist, a single ducted system is often the more economical whole-home option. If ducts have to be built from scratch, that added cost can push a ductless or multi-zone system ahead - both on price and on the disruption of tearing into a finished home.

On comfort, ducted gives you quiet, even, out-of-sight conditioning throughout the home. Ductless gives you precise control over each space and avoids the energy lost through ductwork. Neither is “better” in the abstract - the right pick depends on your home’s layout, its existing systems, and how you live in it.

How we decide for your home

We don’t lead with a product. Every job starts with a no-charge Home Energy Assessment - a load calculation, a look at your existing ductwork (or lack of it), a panel check, and proper sizing. Correct sizing matters just as much as ducted-versus-ductless, and we cover why in our guide on how to size a heat pump.

Out of that assessment comes a clear recommendation - ducted, ductless, multi-zone, or hybrid - along with the numbers behind it. You can see the full range of options on our heat pump installations page.

FAQ

Is a ductless heat pump less efficient than a ducted one?

Not necessarily - often it’s the opposite. Ducted systems lose some energy through the ductwork itself, especially if ducts run through unconditioned space or aren’t well sealed. Ductless delivers conditioned air straight into the room with no duct losses. Real-world efficiency depends more on correct sizing and install quality than on the type you choose.

Can I add cooling with either system?

Yes. Both ducted and ductless heat pumps heat in winter and cool in summer from the same equipment. With Fraser Valley summers trending hotter, that built-in cooling is a main reason homeowners switch to a heat pump instead of adding a separate AC.

Do mini-split heads look bad on the wall?

They’re visible, but modern heads are slim and can be mounted high on a wall, in a ceiling cassette, or near the floor to stay out of sightlines. Many homeowners decide the room-by-room comfort is well worth it. If hidden equipment is a priority and you have good ducts, ducted is the better fit.

How many indoor heads do I need for a whole house?

It depends on the layout, but most homes use one head per main living zone - commonly two to five heads on a single outdoor unit. Open-concept spaces need fewer; homes with many separate rooms need more. The Home Energy Assessment determines the right count and placement.

Can I mix ducted and ductless in the same home?

Yes, and it’s common. A ducted system can handle the main floor where ducts already run, while a mini-split head conditions an addition, a suite, or a room the ducts never reached. Hybrid setups are often the most practical answer for homes that grew over time.

Which one qualifies for BC rebates?

Both do. Ducted and ductless cold-climate heat pumps are eligible for the same rebate programs, up to $11,000 stacked, as long as the equipment and the installer meet the requirements. As an HPSC-registered installer, we make sure your system qualifies before the work starts.

Cohesive Mechanical is the Fraser Valley’s trusted HVAC and plumbing experts - based in Chilliwack, serving Abbotsford, Langley, and the Lower Mainland since 2017. Done right the first time. Clean installs. Clear communication.

Not sure whether ducted or ductless fits your home? Book a free quote and we’ll assess your layout and give you a straight recommendation. Learn more about our heat pump installations.

Related: How to Size a Heat Pump for Your Fraser Valley Home