One of the more confusing of common HVAC terms is “size.” The following brief information will explain HVAC sizing and why it is important to have a properly sized system for your home.
What Does “Size” Mean?
In an HVAC context, size does not refer to the physical dimensions of the equipment. Instead, it refers to the functional capacity of the system–its ability to produce heating or cooling. The furnace, heat pump, or air conditioner you choose for your home must be properly sized to ensure that it will generate enough heating or cooling to keep your home at the temperature you prefer.
Why Focus on Size?
Improperly sized HVAC equipment will not provide the amount of heating or cooling your home needs. If the system is too small, it will not be able to generate enough warm or cool air. It will also work harder to keep up with temperature demands, which means it will wear out sooner and is more likely to malfunction and need repair. A system that is too large will produce too much heating or cooling, wasting both money and energy. Air conditioners, in particular, will cycle on and off more frequently, interfering in the equipment’s ability to dehumidify the interior of your home.
How is Equipment Sized?
When you explore how to choose the right size HVAC system for your home, a load calculation is usually necessary. The load calculation is a sophisticated analysis conducted by your HVAC professional. It considers the physical and thermal characteristics of your home, in addition to your personal temperature preferences, to determine the necessary HVAC equipment size. Load calculations should be performed according to industry standards such as those in Manual J, “Residential Load Calculations,” published by the Air Conditioning Contractors of America.
Conditioned Air, an HVAC contractor in Naples, provides expert home comfort and HVAC services for customers in Naples and the surrounding Florida communities. Contact us today for more information on how to choose the right size HVAC system and for professional assistance with sizing and selecting new heating or cooling equipment for your home.