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Ductless vs Central Air Conditioners – North Wind Heating & Cooling
Apr
When scorching temperatures arrive, you want to be sure you have an air conditioning system that is going to keep you cool and comfortable. But what is the right air conditioning unit to get? Northwind HVAC can help you find the right cooling solution for your home. We offer expert advice and professional service and installation on all our products.
There are many different units to choose from and factors including the size of your home or room and how often you plan on using it will determine which is right for you. One of the most popular choices for both home and business owners is a ductless unit. Small but mighty, ductless units offer exceptional cooling power without breaking your budget.
What Is a Ductless Air Conditioner?
Ductless air conditioners or mini-split air conditioners are an efficient way to keep a specific room cool when the temperatures rise. These units consist of a condenser, similar to traditional HVAC air conditioners, and an indoor air-handling unit. The condenser, located outside, is directly connected to the air handling unit through a power cable. The units are also connected through a refrigerant and suction tube and a condensate drain that handles condensation.
To create maximum efficiency and cooling, the condenser unit can be connected to multiple air handling units in your home. This allows you to better control the temperature from room to room, saving your energy and money.
What Are the Benefits of Ductless Units?
There are many reasons to choose a ductless air conditioner over a duct unit.
Easy To Install: A ductless unit can be installed quickly and easily because it does not require ductwork to run. Installation of ductwork can be expensive and require extensive renovation. A ductless unit is simply run with the indoor air handling unit and condenser.
Easy To Maintain: Ductless units are also quieter than duct-style air conditioning and require less maintenance. They are also easier to access and generally require less work to repair.
Easy On Your Wallet: By allowing you to control how your home is cooled, you experience less energy use because you are not trying to keep rooms cool that you don’t use. You decide which units you want to turn on and off.
How to Decide Which One Is Right for You?
Choosing to install a ductless unit will be determined by several factors. Ductless does offer many advantages to homeowners who do not have existing ductwork or who live in a small space.
Existing Ductwork
If your home already has ductwork and you are connected to an HVAC system, then you may want to consider a traditional duct-based air conditioning unit. If you are looking to add extra cooling power or want to improve cooling in particular rooms in your home, then a ductless unit can easily be integrated into your home without requiring any renovation or adjustment to your existing HVAC system.
Home Size
Most pre-1950s homes don’t have ducts already installed, making ductless units the easy solution to providing your home with air conditioning. Many older homes may not require the same level of air conditioning throughout the home. Lower level rooms tend to be cooler, while upper floor rooms can often be warm because heat rises, making them a great option for bedrooms and converted attics.
Budget
Energy efficiency is an important part of keeping your home cool. Ductless air conditioning is a cost-effective way to keep your home cool. By creating cooling zones, you can control which rooms you cool, reducing energy consumption and keeping your bills low. Ductless air conditioning comes in several price ranges, meaning you can feel confident you are getting the cooling power you need at a price you can afford.
Do You Need Individual Cooling Zones?
Depending on the size of your home, you may want to look at how you can keep it cool through cooling zones. Ductless air conditioners let you tailor your cooling experience to individual rooms or areas of your home, allowing you to enjoy cool air where you need it while keeping it off in other spaces. As we mentioned earlier, you may not need a ductless unit in every room depending on the size and how you use your home. Our team of HVAC specialists can help you design the best air conditioning configuration for your home to maximize comfort and keep you feeling cool on even the hottest days of the year.
Contact us today to learn more about our ductless air conditioning product and installation services.
✓ Expert Note — Our installation team has put in hundreds of central AC and ductless systems across Ontario. Everything below is based on current equipment specs, Ontario climate data, and what homeowners actually ask us before they buy.
Frequently Asked Questions About Air Conditioner Installation in Ontario
How much does central air conditioning cost in Ontario in 2025?
Central AC installation in Ontario typically costs $3,500–$7,500 depending on the system size, SEER2 rating, brand, and whether new or modified ductwork is needed. A mid-range 2-tonne, 14 SEER2 unit from Keeprite or Goodman installed runs about $3,500–$4,500. High-efficiency units (18+ SEER2) from Carrier, Lennox, or Trane range from $5,000–$7,500. If your home needs duct upgrades, add $500–$2,000.
Can I add central air conditioning to a home without ductwork?
Yes, two main options exist. First, you can install ductwork – typically $3,000–$7,000 for a full duct system, depending on the home. Second, a ductless mini-split system can cool the home without any ducts; multi-zone systems cover multiple rooms and cost $4,000–$10,000 installed. For homes where running ducts is impractical (older construction, finished ceilings), ductless is often the better solution.
What size AC unit do I need for my Ontario home?
AC sizing is measured in tons or BTUs. A rough guide for Ontario: 1 ton per 400–600 square feet of living space. A 1,500 sq ft home typically needs a 2.5-ton unit; a 2,500 sq ft home usually needs 4 tons. But this is just a starting point – the actual calculation (Manual J load calculation) factors in insulation, window area, orientation, and local climate data. Oversizing causes short cycling and humidity problems; undersizing leaves the home uncomfortable on the hottest days.
What SEER2 rating should I look for in Ontario?
SEER2 (Seasonal Energy Efficiency Ratio, 2023 standard) replaced the old SEER rating. The new federal minimum in Canada is 13 SEER2 for most regions. For Ontario’s climate, a 15–17 SEER2 unit offers the best balance of upfront cost and long-term energy savings. Units over 18 SEER2 are excellent for high-use households but have a longer payback period in our relatively short cooling season.
Are there rebates for new AC installation in Ontario?
Yes. The Canada Greener Homes Grant offers up to $5,600 for qualifying upgrades including high-efficiency cooling systems, but requires a pre-retrofit EnerGuide audit. Enbridge Gas and local utilities sometimes offer appliance rebates. Some manufacturers (Lennox, Carrier) run seasonal promotional rebates. Our team stays current on available programs and will flag what you qualify for at the time of your estimate.
How long does AC installation take?
A standard central AC replacement (same location, existing ductwork) takes 4–6 hours. A new installation with no existing outdoor unit involves more work – typically a full day. Ductless mini-split installations vary by number of zones: a single-zone system takes 4–6 hours; a multi-zone system may take 1–2 days. You’ll have cooling by end of the installation day in most cases.
How long does a central air conditioner last in Ontario?
A well-maintained central AC unit lasts 15–20 years in Ontario. Annual servicing (coil cleaning, refrigerant check, electrical inspection) makes a significant difference in longevity. Units that were correctly sized and installed by licensed technicians consistently outlast units that were oversized or improperly set up. If your unit is over 12 years old and requires a major repair, start budgeting for replacement.
Written by
Sarah M.
Content Writer, Commercial & Whole-Home Systems
Sarah Mitchell is a content writer on the North Wind HVAC Pro editorial team. She covers commercial HVAC topics, whole-home system comparisons, and buying guides for Ontario property owners. Her work focuses on helping readers understand how equipment choices affect long-term comfort, running costs, and reliability.
