Short version: if your home already has ductwork, a ducted heat pump heats and cools the whole house through the vents you already have. If it does not, or you want to control rooms separately, a ductless heat pump (a mini split) is usually the smarter, cheaper way in. Most Ottawa Valley homes come down to that one question: do you have good ductwork or not?
The quick answer
Ducted is best for whole-home comfort in a house with usable ducts, and it stays completely out of sight. Ductless is best for homes with no ducts, additions and hard-to-heat rooms, and it lets you set each zone to its own temperature. Both come in cold-climate models built for our winters.
Comfort Pro installs both across Carleton Place, Almonte, Perth, Smiths Falls and the rest of the Ottawa Valley, so this is not a sales pitch for one over the other. It is the same set of questions we would walk through in your home. Here is how the two compare and how to tell which one fits.
Not sure which one fits your home?
Book a free, no-pressure in-home assessment and we will tell you straight.
What is the difference between a ductless and a ducted heat pump?
Both do the same job. A heat pump moves heat instead of burning fuel, pulling warmth from the outdoor air into your home in winter and pushing it back out in summer, so one system heats and cools all year. The difference is only in how that heated or cooled air gets around your house.
A ducted heat pump pushes conditioned air through the network of ducts and vents in your walls, floors and ceilings, the same way a central furnace or air conditioner does. A ductless heat pump skips the ducts entirely. It uses one or more indoor units, mounted on a wall or ceiling, that deliver air straight into the room they serve. That is why ductless systems are also called mini splits.
Ductless heat pumps (mini splits): how they work and who they suit
A ductless system pairs one outdoor unit with one or more indoor heads. Each head heats and cools the space it is in, and each one has its own control, so you can keep the bedrooms cooler than the living room, or shut off heat to a room nobody uses. You can read more on our ductless heat pumps page.
Ductless is a good fit if
- Your home has no ductwork, or ducts that would cost a fortune to add (common in older Ottawa Valley homes, and in houses heated by baseboards or boilers).
- You want to heat or cool specific rooms: a chilly bedroom over the garage, a finished basement, a sunroom, a home office.
- You are adding on. A new addition or garage conversion is far easier to serve with a mini split head than by extending ducts.
- You want the highest efficiency. With no ducts, there is no energy lost to leaky ductwork, so ductless often squeezes a bit more out of every dollar of electricity.
The trade-offs
You see the indoor units. Each head sits on a wall or ceiling, which not everyone loves the look of. And if you want true whole-home coverage, you need several heads, and the cost of a big multi-zone system can climb past a ducted one.
Ducted heat pumps: how they work and who they suit
A ducted heat pump connects to your home’s duct system and conditions the whole house from one central unit, exactly like the central furnace or air conditioner it often replaces. Nothing hangs on the walls; you just get vents in each room. See our ducted heat pumps page for the models we carry.
Ducted is a good fit if
- Your home already has good ductwork. This is the big one. If the ducts are there and in decent shape, ducted is usually the most cost-effective way to do the whole house.
- You want even, invisible, whole-home comfort with no equipment on display in your living space.
- You are replacing a central furnace or AC and want the same one-thermostat simplicity.
- You want it to look and feel like a conventional central system, just far more efficient.
The trade-offs
No existing ducts means adding them, and running ductwork through a finished home is expensive and disruptive. A single ducted system also heats the whole house to one temperature, so you do not get the room-by-room control a ductless system gives you.
Ductless vs ducted heat pump: side by side
| Ductless (mini split) | Ducted (central) | |
|---|---|---|
| Needs ductwork? | No | Yes |
| Best for | No-duct homes, single rooms, additions, zoning | Whole-home comfort where ducts exist |
| Room-by-room control | Yes, each head is its own zone | One temperature for the house |
| Visible indoors? | Yes, wall or ceiling heads | No, just vents |
| Efficiency | Very high, no duct losses | High, depends on duct condition |
| Cold-climate models? | Yes | Yes |
Which heat pump is right for your home?
Here is the shortcut we use with homeowners:
- You have ductwork in good shape and want the whole house done: ducted is usually your best value.
- You have no ducts (baseboard, boiler or an older home): ductless, and you skip the cost and mess of adding ducts.
- You only need to fix one or two problem rooms: a single-zone ductless head is the cheapest, cleanest answer.
- You are building an addition or finishing a space: ductless, almost every time.
- You want different temperatures in different rooms: ductless, for the zoning.
Plenty of Ottawa Valley homes end up with a mix, a ducted system for the main house and a ductless head for that one room the ducts never reached. New to heat pumps in general? Start with how heat pumps work, or see how they stack up against a furnace in heat pumps vs furnaces.
Do ductless and ducted heat pumps work in Ottawa Valley winters?
Yes. This is the question every local homeowner asks, and the honest answer is that modern cold-climate heat pumps, both ductless and ducted, are built to keep heating well below freezing, far colder than an older heat pump could manage. On the coldest stretches of a Lanark County winter, many homes pair a heat pump with a backup, either an electric element or a gas furnace in a dual-fuel setup, so you are always covered. We size and spec every system for our climate, not a mild one.
How much do ductless and ducted heat pumps cost?
It depends on the size of your home and how many zones you need, but as a rough guide for the Ottawa Valley:
- Single-zone ductless (one room or area): roughly $4,000 to $7,000 installed.
- Multi-zone ductless (several heads for whole-home coverage): roughly $10,000 to $20,000.
- Ducted central heat pump (using existing ductwork): roughly $8,000 to $16,000 installed.
Two things to know. Adding ductwork where there is none pushes a ducted install up quickly, which is often what tips a home toward ductless. And unlike a straight gas furnace swap, heat pumps are exactly what the big rebate programs are built to reward, so the net cost can drop meaningfully. Ask us what you qualify for today, and check our current heat pump specials.
Get the right heat pump for your home
Book a free in-home assessment and we will recommend ductless or ducted based on your home, not a script.
Ductless vs ducted heat pump FAQ
Is a ductless or ducted heat pump better?
Neither is better across the board. Ducted is usually the best value for whole-home comfort when your house already has good ductwork. Ductless wins when there are no ducts, when you want room-by-room control, or when you only need to fix specific spaces.
Are ductless mini splits more efficient than ducted heat pumps?
Often slightly, because ductless systems lose no energy to leaky ductwork. A well-sealed ducted system is close, though. In practice, correct sizing and installation matter more to your bills than the ducted-versus-ductless choice alone.
Can one heat pump heat a whole house?
Yes. A ducted heat pump does it through your existing vents. A ductless system can too, using a multi-zone setup with a head in each main area. Which route is cheaper depends on whether you already have usable ducts.
Do heat pumps work in cold Ottawa Valley winters?
Yes. Cold-climate models, ductless and ducted, are designed to keep heating well below freezing. For the coldest days, many homes add electric backup or run a dual-fuel setup with a gas furnace.
Do heat pumps qualify for rebates in Ontario?
Heat pumps are the technology the major Ontario and federal programs are built to reward, so there is usually real money on the table, unlike a gas furnace swap. Programs change, so ask us what applies to your home right now.
How do I decide between ductless and ducted?
Start with one question: do you have good ductwork? If yes, ducted is likely your best value. If no, ductless usually wins. Call Comfort Pro at 613-253-4277 for a free in-home assessment and we will confirm the right fit.