What Are AC Load Calculations And How Do I Read Them?

Using AC load calculations to choose an energy efficient HVAC unit If you are planning to upgrade your current HVAC system or are building a new home, one of the most asked questions is what are ac load calculations in regards to heating and air conditioning planning? The truth is that load calculations are vitally important for any HVAC system installation and design – whether it’s a new or existing home. The HVAC system in any home is designed to properly heat, cool and distribute fresh air efficiently through an entire home. And professional HVAC installers use high-tech computer software to find the precise load calculation for your specific home to ensure you get the right HVAC unit for your property.

Here are a few answers to common questions about load calculations, what they are, why they are used and how experts use these numbers to help you find the right HVAC unit for your specific home.

The Important questions of AC Load Calculation for your Home

What is a Load Calculation?

In the most basicdefinition, a load calculation in regards to planning HVAC unit installation is the measurement of several elements to determine how big of a HVAC system should be used and installed. This includes the duct work, the type of HVAC unit, the amount of vents, and where to install them to ensure proper use of space and maximize efficiency.

There are many variables that go into load calculations including:

The size of the house in cubic feet
How many floors the home has
The orientation of the property and the house
The climate in which the house is built
The ‘U-value’ of windows, tightness of the window seals and door seals as well
The directional orientation of the house; (which direction the house is facing and most windows face)

How are Load Calculations used?

When you’re having a house upgraded or built, the first step is to have the HVAC experts conduct a load calculation for this property and to design a HVAC system that will ensure comfort, proper heating and cooling by maximizing the energy efficiency of the unit. Today’s professional HVAC installation teams use high-tech computer simulation software that allows them to consider all of the above variables in order to plan a perfectly designed air conditioning and heating system. They use these load calculations to determine:

What type of ductwork to install, where to install it, and what type of materials to use
Where to place vents (intake and exhaust) for the best circulation of both warm and cool air
What type of HVAC system to use including style, shape, size and capacity

How do I know if Load Calculations are correct?

Commonly asked from people building homes is how they can verify that the HVAC system they have installed is in fact the right unit for their needs. The simple truth is that this begins before the actual load calculation is completed. Simply by openly discussing exactly what you are looking for with your new HVAC installation up front with your HVAC installation company is the best way to ensure you get the right HVAC system for your home upgrade or build.

HVAC load calculations are very important in the design and installation of any HVAC system. And it is important to work with a licensed professional company who uses the best technology to ensure your new HVAC system will operate as you would like best.

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