How to Build an Air Conditioned Dog House

What Is an Air Handler?

Whether you're installing a heating, ventilation and air conditioning (HVAC) unit in a new home or upgrading your existing system, it's important to research your options. One option is to install an air handler. Keep reading to learn how air handlers work and how they differ from other HVAC options.

How Does an Air Handler Work?

An air handler does just as its name implies _ it handles the air in your house. Inside of the air handler is a blower, which moves the air throughout various parts of the home. Most times, air handlers are installed inside the house and move both warm and cool air. When looking at an air handler, it's not uncommon to mistake it for a furnace.

What's the Difference Between an Air Handler and Air Conditioner?

An air handler doesn't produce cool air. Instead, it distributes the conditioned air produced by the air conditioner. The air handler can also work with a heat pump to distribute warm air during the cooler months. An air handler circulates air inside your home to help the heat pump maintain your desired temperature.

What's the Difference Between an Air Handler and Furnace?

A furnace produces heat by burning fuel. This fuel usually comes in the form of natural gas, propane or oil. Inside the furnace is a blower, which distributes the heat throughout the home via ductwork. An air handler doesn't produce heat. Instead, it works in conjunction with a heat pump to move heated air throughout the house. The heat pump pulls heat out of the indoor air during the summer, and using refrigerant, moves the heat energy outside of the home. As a result, the air handler blows cooled air throughout the house. During the winter, the heat pump uses its refrigerant to capture heat energy from the outside air and then moves it inside. This causes the air handler to blow warm air to heat the home. This confuses some people because they don't realize that even when it's cold outside, there is still heat in the air.

What's the Difference Between an Air Handler and Blower?

Although an air handler has a blower, it is not designed to operate solely as a blower. It has many other components. If you're looking for a conventional heating and cooling system, you most likely won't need an air handler. On the other hand, if you're shopping for a heat pump, an air handler can be used to improve indoor comfort levels.

What Are the Different Parts of an Air Handler?

Most air handlers have filters along with mixing chambers and dampers. It has an evaporator coil that is cold during the summer and removes humidity when the air passes over it. During the winter, the coil is warm and puts heat into the air as the air passes over it. The blower motor on an air handler moves the warm or cool air through your home's ductwork. This ductwork is connected to the air handler by an air supply and return plenum connections. Air handlers also have a filter that minimizes the number of particulates that are circulated in the indoor air.

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