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What Size Air Conditioner Do I Need?

What Size Air Conditioner Do I Need?

An image of air conditioners of different sizes

Cooling your home with the right HVAC system helps you maintain a pleasant indoor climate while also adhering to the Canada Greener Homes Grant in some cases. Professional installation is a must, but you should figure out one thing before you arrange for that. You need to have some idea what size air conditioner you need.

How Air Conditioner Sizes Are Determined?

To determine the size of the air conditioning system you need, just multiply the width times the length of the room or home that will get cooled. Then, multiply that number by 25 BTU. This should generate enough cooling, regardless of conditions, ranging from hot, humid summer days to moist and rainy days. If you're only cooling one room that is 12 feet wide and 15 feet long, the two numbers multiply to 180. Multiplying that by 25 BTU for each square foot puts your minimum at 4500 BTU overall.

Things To Consider for Your Air Conditioner

Just buying a new air conditioner is a big investment, but it's not the only cost involved. Does your home have ductwork for it? Where will you put it? How much will you pay for the power usage, increase in your homeowner's insurance, and installation of the unit? Add all these up.

Importance of a Proper Size Air Conditioner

An undersized air conditioner will struggle to cool your home properly, meaning it will consume more power than is necessary and break down faster than it should. That will result in more repairs and earlier replacements. Alternatively, an overpowered system won't run long enough when it's on to actually get heat and moisture out of the air, meaning it will start up and run more often, also wearing it down faster than necessary.

If you decide to install an air conditioner in your home in Toronto & GTA, then you're doing something big for your home. Picking the wrong size of unit can seriously impact the energy cost you have each month. A professional evaluation from A Plus Quality Inc can determine your optimal cooling capacity.

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FAQ

  • Why should I maintain my Furnace or AC?

    An annual maintenance will extend the lifetime of your heating and cooling unit. The technician will diagnose and repair any problem with the unit before it fails, so you won't need to worry about any problems when the weather gets very hot in the summer or extremely cold in the winter.

  • Most common Boiler Issues

    - Boiler fails to ignite
    - Low pressure
    - Strange Noises
    - Boiler is not responding to the thermostat
    - Cold Radiators
    - Boiler leaking or dripping
    - Boiler cycling very fast
    - Available Hot water but No Heat

  • What are mini-split advantages?

    Just as the name implies, a “mini-split” system is a “split system” however available in smaller capacities, for single room to whole house conditioning. Mini-split systems may range from as small as 9,000 BTUh per hour, comparable to say, a small window AC unit, for individual room use, up to 4 and 5 ton capacities for “Room By Room” (also known as “Zoning”) and whole house conditioning. With near universal design, mini-splits are “heat pumps” which provide both heating and cooling for a home. Here are key advantages when compared to traditional split systems:

    Efficiency- Mini-splits are highly engineered systems which offer attractive operating efficiencies, in many instances, eligible for utility company rebates.
    Heat Pump- Most mini-split systems are heat pumps, providing year-round comfort.
    Solar friendly- Due to very low power requirements, mini-splits are an ideal complement to “Net Zero Energy” homes, or any home using renewable power.
    Carbon footprint- Mini-splits are 100% electric, with zero operating emissions of any type.
    Zoning- Most mini-split manufacturers offer systems capable of room-by-room “zoning”, to account for peak demands of a room based upon construction type, exposure orientation and usage.
    Variable capacity- Mini-splits are typically DC inverter driven. That is, a variable speed compressor which modulates in proportion to instantaneous demand. Most conventional split systems, by comparison, operate with an ON-OFF strategy. (Would you use an ON-OFF switch as the accelerator in your vehicle?)
    Location, Location, Location!- Mini-split outdoor units are compact; they can be located far away from noise-sensitive areas, such as bedrooms and home offices. Mini-split indoor units have the ability to be installed where conventional systems cannot.
    They’re perfect for additions and remodels where access to current HVAC system is difficult to access.
    Modern mini-split systems are remarkably quiet; in fact, many times their operation is unnoticed by the end user.

  • How do I know what size unit I need?
    If you have any problems with your system, you should contact the contractor who installed the units. All our systems are covered by a 5 year parts, 7 year compressor limited warranty
     
  • What is a heat pump?

    Heat pumps use electricity to move heat from a cool space to a warm space, making the cool space cooler and the warm space warmer. During the heating season, heat pumps move heat from the cool outdoors into your warm house and during the cooling season, heat pumps move heat from your cool house into the warm outdoors. Because they move heat rather than generate heat, heat pumps can provide equivalent space conditioning at as little as one quarter of the cost of operating conventional heating or cooling appliances.

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