Types of Air Conditioning: What's Right for Your Home or Business?

kevin Wu • May 19, 2023

Types of Air Conditioning: What's Right for Your Home or Business?

Air conditioning is a crucial aspect of modern living, providing a comfortable and cool environment in homes and businesses. There are several types of air conditioning units available, each with its own set of characteristics and suitability for different locations and budgets. In this article, we will explore the different types of air conditioning units and their pros and cons to help you decide when choosing the best unit for your needs.

Central Air Conditioning

Central air conditioning is popular for cooling large spaces like homes and offices. It works by using an outdoor unit that houses the compressor and condenser and an indoor unit that has the evaporator and air handler. The indoor unit is connected to the outdoor unit through ducts, which distribute the cooled air throughout the space.

One of the main benefits of central air conditioning is that it can effectively and evenly cool large areas. It is also relatively quiet because the outdoor unit is located outside the building. However, central air conditioning can be expensive due to the initial investment and professional installation required.

It is also unsuitable for small or irregularly shaped spaces since it needs a network of ducts to function properly.

Window Units

Window units are a simple and affordable option for cooling small spaces, such as a single room or an apartment. They are mounted on a window or an opening in a wall and consist of a single unit that includes the compressor, condenser, and evaporator. Window units are easy to install and can be removed when not in use, making them a suitable choice for renters.

However, window units can be noisy and may not be as effective at cooling larger spaces. They also block a part of the window, which can be an issue if you want to maintain a view or natural light.

Portable Air Conditioners

Portable air conditioners are a flexible option that can be moved from one room to another. They consist of a single unit with wheels that can be easily transported and are suitable for cooling small to medium-sized spaces.

Portable air conditioners are easy to install, as they only require a nearby electrical outlet and a window to vent the hot air. They are a good choice for renters or people who don't want to invest in a permanent cooling solution.

However, it can be noisy and less energy-efficient than other air conditioning units. They also require a window or an opening in a wall to vent the hot air, which can be inconvenient if no suitable openings are available.

Ductless Mini-Split Air Conditioning

Ductless mini-split air conditioning is a flexible and efficient option for cooling individual rooms or zones within a larger space. It consists of an outdoor unit that houses the compressor and condenser and one or more indoor units that include the evaporator. The indoor units are mounted on the wall or ceiling and are connected to the outdoor unit through a small hole in the wall.

Ductless mini-split air conditioning is energy-efficient and allows precise temperature control in each room or zone. It is also relatively quiet and easy to install, as it does not require ducts. However, it can be more expensive than other air conditioning units, and the initial investment may be higher if you install multiple indoor units.

Geothermal Air Conditioning

Geothermal air conditioning uses the earth's constant temperature to cool and heats a building. It consists of an underground loop of pipes that absorbs heat from the ground and an indoor unit that circulates the cooled or heated air throughout the space.

Geothermal air conditioning is energy-efficient and environmentally friendly, using a renewable energy source and reducing greenhouse gas emissions. It is also relatively quiet and requires minimal maintenance. However, it requires a significant initial investment and professional installation and may not be suitable for all locations.

Evaporative Coolers

Evaporative coolers, also known as swamp coolers, use the process of evaporation to cool the air. They consist of a unit installed on the roof or outside wall of a building and a series of ducts that distribute the cooled air throughout the space. Evaporative coolers work best in dry and hot climates, as they rely on the humidity in the air to function properly.

Evaporative coolers are energy-efficient and environmentally friendly, as they use a minimal amount of electricity and do not release greenhouse gases. They are also relatively affordable and easy to install. However, they are not as effective at cooling as other air conditioning units and may not be suitable for humid climates.

Conclusion

In conclusion, several types of air conditioning units are available, each with its own advantages and disadvantages. The best unit for you will depend on your specific needs, budget, and location. When choosing an air conditioning unit, consider factors such as the size of the space, climate, noise level, energy efficiency, and initial investment and maintenance costs.

Do you want to own one in London, Ontario? Let’s go and visit us today and make the change!

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As climate patterns shift and summers grow hotter across Canada, homeowners are increasingly turning to air conditioning as a necessary part of daily comfort. But with that comfort comes a cost—both financially and environmentally. If you're tired of soaring electricity bills or want to reduce your household's energy use, investing in the best energy-efficient air conditioners in Canada is a smart move. This guide is here to help you understand what makes an air conditioner energy-efficient, what types are most suitable for Canadian homes, and which models top the charts in 2025. We'll also look at common misconceptions and practical insights to help you make an informed decision without relying on guesswork—or risky DIY installations. Key Takeaways Energy-efficient AC units can significantly lower electricity costs and reduce your carbon footprint. In Canada, features like Energy Star certification and high SEER ratings matter most. Choosing the right AC isn’t just about the unit—it's also about correct installation and expert servicing. Carver Sheet Metal in London, Ontario offers expert advice and trusted installation services for the best air conditioning units Canada has to offer. What Makes an Air Conditioner Energy-Efficient? Understanding SEER and Energy Star Ratings When evaluating energy-efficient air conditioner , the Seasonal Energy Efficiency Ratio (SEER) is a crucial metric. This number indicates how much cooling a system delivers per unit of energy consumed. In Canada, a SEER rating of 14 or higher is generally considered efficient. Many of the best air conditioning units Canada homeowners trust have SEER ratings well above 18. Energy Star certification is another key indicator. These models meet government-backed standards for efficiency without sacrificing performance. According to Natural Resources Canada, switching to an Energy Star-certified AC can reduce cooling costs by up to 30% annually. Central vs. Ductless vs. Portable Units There’s no one-size-fits-all solution. Central air systems are ideal for larger homes, especially those with existing ductwork. Ductless mini-splits offer more flexibility and room-by-room control, making them perfect for renovations or homes without ducts. Portable units, while convenient, often lag in energy efficiency. If you’re in a city like London, Ontario, with its mix of older and newer homes, it’s critical to match the type of unit to your home’s structure and insulation level. That’s why professional consultation is key—something Carver Sheet Metal excels at. Why Energy Efficiency Matters More in Canada Our Unique Climate Demands Better Tech Canadian summers can swing from mild to sweltering, depending on the region. While a basic unit might suffice for coastal areas, inland cities like London, Ontario often face sharp temperature spikes. An energy-efficient air conditioner adapts better to these fluctuations while keeping consumption low. Furthermore, Canada's electricity prices vary by province, with Ontario typically ranking among the higher cost zones. Investing in a high-efficiency AC helps mitigate those long-term costs. Environmental Impact The environmental benefit of using an energy-efficient system cannot be overstated. Less power usage means fewer emissions. With Canada targeting net-zero emissions by 2050, every household can contribute by upgrading their cooling systems. Features to Look For in 2025 Smart Thermostat Compatibility More units now pair with smart thermostats, allowing better temperature control and scheduling. This minimizes energy waste and improves comfort. Variable-Speed Compressors Unlike traditional systems that switch on and off, variable-speed compressors adjust gradually. This reduces energy spikes and prolongs the unit’s lifespan. Quiet Operation & Compact Design Noise may not be the first thing that comes to mind, but it affects your living space significantly. Modern energy-efficient models are quieter and better suited for family or multi-use spaces. Top 5 Energy-Efficient Air Conditioners in Canada (2025) While we’re not naming specific brands to stay focused on your needs rather than promotion, here's what the top-rated units on the market share: SEER Ratings of 18–26 These are among the highest on the market and ideal for long-term savings. Energy Star Certified Every top pick meets or exceeds government standards. Wi-Fi Connectivity Control via smartphone apps for better energy management. Multi-Stage Cooling Offers customizable comfort while using less electricity. Trusted Warranty Longer coverage usually signals quality parts and engineering. Each of these features contributes to lower operational costs and a reduced carbon footprint—goals every homeowner in Canada should prioritize. Why DIY Isn’t the Answer for Installation Energy-efficient systems are only as good as their installation. A poorly installed AC unit, no matter how advanced, can leak air, short cycle, or draw too much power—completely offsetting any potential savings. In fact, government and utility providers recommend professional installation not just for efficiency but also for safety and warranty compliance. Carver Sheet Metal offers precise and dependable services to make sure you get the most out of your investment. When it comes to comfort and cost, why take the risk? at Carver Sheet Metal is here to help you choose the best air conditioning units Canada has available. Located at 11245 Sunningdale Road E, London, ON, we proudly serve homeowners with expert advice and energy-smart installation. Call us today at (519) 555-3821 to schedule your consultation. Choose comfort. Choose savings. Choose Carver Sheet Metal. FAQs Q: How do I know if an AC unit is energy-efficient? A: Look for units with high SEER ratings and Energy Star labels. These certifications mean the product meets national standards for energy performance. Q: Is it worth the higher cost of an energy-efficient air conditioner? A: Yes. While the upfront price may be higher, the long-term savings on electricity bills and reduced maintenance usually pay off within a few years. Q: How much can I save annually with an efficient air conditioner? A: Estimates vary, but Canadian homeowners often save 20–30% on cooling costs when upgrading from older systems. Q: Do energy-efficient ACs work well in older homes? A: Absolutely. Many ductless models are designed for retrofit applications and can be installed without major renovations. Q: Should I size the unit myself? A: No. Proper sizing requires a load calculation that factors in your home’s size, insulation, windows, and more. Always consult a professional. Conclusion Choosing the best energy-efficient air conditioners in Canada isn’t just about comfort—it’s about smarter living. With energy prices on the rise and environmental concerns more pressing than ever, upgrading your AC unit can make a real difference.If you're in London, Ontario, and you're ready to stop guessing and start saving, we’re ready to help. Carver Sheet Metal brings professional insight, honest recommendations, and top-tier service to every home. Ready to experience comfort and efficiency? Give us a call and discover why we’re the trusted name in the best air conditioning units Canada has to offer.