Getting the Right Size Air Conditioner

air conditioning in portland Are you ready to install a new air conditioning unit in Portland ? If so, be sure to do your research and to work with a trustworthy, qualified HVAC professional. There are many models on the market today that can easily suit your needs and budget. But before you decide to purchase an AC unit, you must understand what your needs actually are. That means you have to know the size of the interior space you want to cool.

Get the Right Size

In this instance, bigger is definitely not better. Opting for an oversized air conditioning unit can cost you more money to operate, along with a higher initial purchase cost. Conversely, a smaller unit that’s not proportional to the size of your room or home will struggle to cool down the space properly, oftentimes never achieving your desired temperature settings during excessively hot days. Consequently, that unit could continuously run for long periods of time, which wastes energy and reduces its lifespan.

Do the Math

In order to get the right size air conditioner, you have to do a little math. Using a measuring tape, figure out how many square feet your new air conditioning unit will be cooling. For square or rectangular rooms, simply multiply the room’s length by its width. For oddly shaped rooms, section off the space, as best as you can, into triangles and use the formula 0.5 x length x width on each triangle. Add all of the sums together to find out the total square footage. If you plan to install a central AC unit, be sure to add together the square footages of every room in your home that you want cooled—this can also be done by reviewing your home’s record at your county auditor’s office or your property tax paperwork.

Do More Math

If you’re feeling ambitious, you could calculate the amount of BTUs (British Thermal Units) per hour needed to efficiently cool your intended space—known as cooling capacity. Cooling capacity guidelines can be found on The United States Department of Energy’s ENERGY STAR website. Once you have determined all of your applicable numbers, it’s time to consult an HVAC contractor.

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