Air Conditioner Buyer’s Guide 2025
Staying cool in summer isn’t just about comfort. It can protect your health and help you sleep better. If you’re buying a new air conditioner, this AC Buyer’s Guide will help you make smart choices. Get a free quote now!
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AC Buyer’s Guide
How to Choose an Air Conditioner
Stay chill this summer with our fun, easy guide to picking the perfect air conditioner!
1. Pick the Right Type
Think about your home’s size, layout, and existing systems. Central AC is best for whole-home comfort. Ductless works well if you don’t have ducts. Window or portable units are fine for small spaces or rentals. Also consider how long you plan to stay in your home. A portable unit may be best if you plan to move soon.
Central AC
Best for whole-home comfort with existing ducts.
Ductless AC
Works well if you don’t have ducts.
Window/Portable
Fine for small spaces or rentals.
A portable unit may be best if you plan to move soon.
2. Choose the Right Size
Don’t guess—use BTUs (British Thermal Units) to find the right fit. Too small won’t cool properly; too big wastes energy.
| Room Size | Recommended BTUs |
|---|---|
| 150–250 sq. ft. | 6,000 BTUs |
| 250–400 sq. ft. | 8,000 BTUs |
| 400–550 sq. ft. | 10,000 BTUs |
| 550–700 sq. ft. | 12,000 BTUs |
| 700–1,000 sq. ft. | 14,000 BTUs |
| 1,000–1,200 sq. ft. | 18,000 BTUs |
| 1,200–1,400 sq. ft. | 21,000 BTUs |
| 1,400–1,500 sq. ft. | 24,000 BTUs |
☀️ Sun exposure, ceiling height, and insulation matter too. Ask a professional if you’re unsure.
3. Check the Efficiency
Look for Energy Efficient Air Conditioners. Efficiency affects your bills and the environment.
Key ratings:
SEER Ratings (Seasonal Energy Efficiency Ratio):
Used for central and ductless systems. Higher is better. In Canada, a good SEER is 14+. Top units go up to 20+.
EER Ratings (Energy Efficiency Ratio):
Used more for window and portable units. Aim for a rating of 10 or higher.
BTU (British Thermal Units) Ratings:
Reflects the cooling power. Match this to your space.
Pro Tip: Look for ENERGY STAR® certified units for top efficiency. These often qualify for rebates too.
Air Conditioner Cost
Prices vary by type, size, and brand.
Average Costs in Canada:
- Window AC: $200 to $700
- Portable AC: $300 to $1,000
- Ductless AC: $2,500 to $5,000 (single zone)
- Central AC: $3,000 to $7,000 (installed)
- Add $500–$1,000 for installation by a licensed HVAC company.
In some cases, you may need electrical upgrades or ductwork repairs, which can increase the total cost. In Kitchener-Waterloo, prices may be different, but you can get local deals or rebates. Ask professional HVAC companies for quotes with breakdowns.
Schedule ServiceTypes of Air Conditioners
Whether you’re looking for the best air conditioners in Canada or want advice on how to choose an air conditioner for your home, this guide covers it all. We’ll break down types, costs, sizing, efficiency, and what to expect in the Kitchener-Waterloo area.
Central AC units cool your whole home. They use ductwork to push air through vents. They’re a good choice if you already have a furnace and duct system. Central air is quiet and keeps every room the same temperature. You can pair these units with smart thermostats to save even more on energy. Many models are ENERGY STAR certified and come with excellent warranties.
Also called mini-splits, ductless systems have an indoor unit and an outdoor unit. You don’t need ducts, so they’re great for older homes or room additions. You can cool one room or many with different units. They’re also more efficient than window or portable options and offer zoned cooling. Many ductless air conditioners come with heat pump features, giving you both cooling and heating.
These stand on the floor and plug into a wall. A hose vents warm air out the window. They’re easy to move, but can be noisy and less efficient. They’re useful in spaces where window units aren’t an option. Some models also come with built-in dehumidifiers.
These are common in apartments. They fit into a window frame. They’re easy to install and remove, but only cool one room at a time. Some models offer remote control, timers, and energy saver modes. Check for window size compatibility and installation support features.
Hire a Licensed HVAC Contractor
Installation Tips
Installation affects how well your system works. A poor install can cause leaks, noise, and poor airflow. Get a licensed HVAC company to install your unit. Ask your AC contractor about:
SEER/EER performance
Duct inspection
Warranty coverage
Permits and Code
Some towns require permits. An HVAC contractor can help with this. Following local building codes ensures your system runs safely and efficiently.
Air Conditioner Brands
Top-rated AC brands in Canada
Try to consider customer service. A reliable brand with local support is worth more than just a high SEER rating.
current rebates on hvac systems
Air Conditioner Rebates in Ontario
Canada Greener Homes Grant
Unlock up to $5,000 for energy-efficient home upgrades, including air conditioners. Start your journey to a greener home today!
Learn MoreHome Efficiency Rebate (HER+)
Ontario residents can benefit from rebates for home efficiency upgrades. Check if your air conditioner qualifies for this exclusive program!
Learn MoreLocal Utility Rebates
Explore deals from Waterloo Region, Ontario Hydro, and other local utilities. Save more with region-specific incentives for your cooling system!
Learn MoreNote: Rebates may require an energy audit or a certified installer. Contact your HVAC contractor to confirm eligibility and maximize your savings!
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Maintenance and Repair
Air Conditioner Maintenance
Keep your unit running well with regular upkeep:
Clean or replace filters every 1–3 months.
Clear debris from outdoor units.
Schedule annual checks with an HVAC service.
Inspect insulation and seals.
Test the thermostat.
Simple maintenance helps your unit last longer and lowers repair costs.
Air Conditioner Repair
If your AC isn’t cooling well, makes noise, or leaks, call for repair. Catching issues early can avoid bigger bills later. Common problems include:
Refrigerant leaks
Frozen coils
Broken fans or motors
Faulty thermostats
Air Conditioner Rentals
Some HVAC companies offer AC rentals. You pay monthly instead of up front. This includes service and repairs. Rentals may cost more long-term, but are easier if you can’t afford the full price.
Ask these questions:
- Is maintenance included?
- Can I buy the unit later?
- Are there early exit fees?
AC rental is popular in the Kitchener-Waterloo area, especially for new homeowners.
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Frequently Asked Questions
Need HVAC help in Kitchener-Waterloo? Call our trusted local HVAC company now!
At Aire One KW, we can help with buying a new air conditioner, installation, maintenance, or repair whenever you need us.
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