Determining Which Central A/C Unit is Right for You
There are a few factors to take into consideration when purchasing a central A/C unit such as: location of building (does it receive a lot of sun), unit features, and budget. The most important consideration is size. Central air conditioners come in a range of sizes. The unit itself is measured by tonnage, which is its ability to cool air. For example, one ton is the ability of your air conditioner to cool 12,000 BTU’s in an hour.
BTU’s and Air Conditioners Explained
A BTU stands for British Thermal Unit. It is a measurement used to rate the amount of heat an air conditioner removes for a room or building. The higher the number the greater the cooling power.
Sizing Your A/C Unit
Central air conditioning units are sized in tons, beginning at 1.5-ton and increasing in increments of 0.5 up to 5.0-tons for residential use. If you building requires a unit to surpass 5.0-tons, multiples units would be installed. A/C units over 5.0-tons are for light commercial use only. In order to correctly assess which size of central air conditioning unit your building requires you will have to know the approximate square footage of space you are intending to cool. To get an estimate on the size of unit you should be considering you can use the following equation:
(Building Square Footage x 30 ÷ 12,000) – 1.0 = Required Tonnage
(1500 sq ft building x 30 ÷ 12,000 = 3.75) – 1.0 = 2.75
You would need a 2.5 or 3.0 ton sized unit (they only come in 0.5 sizes)
When it comes to size it matters. The two biggest reasons why:
- A unit that is too big will not run a full cycle, it will constantly turn on and off thereby costing you money
- A unit that is too small will run all of the time in an attempt to cool your space thereby costing you money
As always, it is a great idea to consult with an HVAC professional before buying or installing a central air conditioning unit.
Comparing Central Air Conditioners
Retailers and HVAC suppliers offer a wide range of options when it comes to central A/C units. See below for a comparison of one of the most popular brands available to consumers in Mississauga. Amana offers units in a range of price tiers, see below for a comparison.
Mississauga, Ontario is located just outside of the City of Toronto, on the shores of Lake Ontario. It is the third biggest municipality in Ontario, and home to Pearson International Airport—Canada’s busiest airport. Mississauga’s moderate yearly climate experiences hot summers with temperatures in the low to mid 30-degree range mixed with high humidity. Air conditioning units are essential during the hottest months of July and August. To find more information on A/C units that would work for you contact a local HVAC provider.