Okheatingandair Blog

What Size HVAC System Should I Have?

Determining the right size of HVAC system to install can be challenging. There are a number of factors that affect your home’s temperature. These factors can affect the performance of the HVAC system you install. Before you buy a central air conditioning system, consider the cost, quality and efficiency of the unit.

Air conditioning units come in different sizes, efficiency and installation requirements. Knowing how an HVAC unit works can help you decide the right size to choose. There are two main components that make an air conditioner work. These are the evaporator and expansion valve that is mounted above the HVAC system, and the compressor and condenser that is housed in an outside unit.

The Importance of HVAC System Sizes
You need the right sized HVAC unit to set up your home’s cooling system. A professional HVAC installation and repair company can help you identify the factors that affect your home’s cooling. Some factors include:

 Amount of shade from trees and shrubs
 Existing ventilation systems and ductwork
 Amount of insulation and degree of air sealing
 Age of your home
 Amount of sunshine that falls on your home
 Age, condition, and orientation of windows in your home
 The area of exterior walls that is exposed to the sun
 The total area of the home’s living space

Knowing the right HVAC system sizes to for will help you choose a unit that will run a full cycle and keeps the house cooler for longer.

But the aim is not to simply go for a bigger unit. An oversized unit will quickly cool the home and shut off sooner. However, on shutting off, the walls, floor and furniture in the home will not be adequately cooled and thus the home will heat up again. When this happens, the HVAC system will have to restart repeatedly, which makes it inefficient.

On the other hand, an undersized unit will not cool your home efficiently. It will keep running and consume a lot of energy, hence increasing your costs.

Need advice on the right size of HVAC unit to install? Call us today.

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