A heating, ventilation, and air conditioning (HVAC) air handler unit, or AHU, may resemble a furnace in appearance, but its purpose is very different. It conditions and circulates both cool and hot air, depending on what time of year it is.
An air handler works in tandem with your air conditioner or heat pump to help you get the most efficiency from your HVAC system. As you take in these details on air handlers, our Haynes Heating & Air Conditioning professionals are happy to answer any questions you may have.
What Exactly Is an Air Handler?
An air handler looks like a furnace in that it is usually a cased unit, like a furnace. Typically it is located inside your Rome home and contains a blower, evaporator coil, and many components of your ventilation system, such as sound attenuators, filter racks or chambers, and dampers.
The air handler is the inside component of your HVAC system––working with your split-system air conditioner or heat pump. Usually air handlers connect to existing ductwork, distributing the conditioned air through your Georgia home and returning it to the air handler. The air handler blows the air (where the heat has been removed by the evaporator coil) through the air ducts in your home.
Air handlers come in different sizes. Smaller units may only have an air filter, blower, and coil. These are called terminal units, blower coils, or fan coil units. A larger air handler, known as a makeup air unit (MAU), conditions 100 percent outside air, no recirculated air. An air handler only designed for outdoor use and usually on roofs is called a rooftop unit (RTU); this type is generally for commercial use.
How Do I Know If I Need One?
If you are in the market for a new HVAC system, and you are considering a conventional gas furnace and air conditioner, you most likely will not need an air handler. On the other hand, if you are considering an electric heat pump, an air handler will probably be part of your purchase.
Often air handlers contain heat strips to provide additional heating, which cause them to sometimes be mistaken for electric furnaces. True electric furnaces are completely different in workings and purpose than an air handler. The air handler heat strips are only there to assist in providing heat when the temperatures are a little lower, but not low enough to require a furnace.
A general rule of thumb in determining whether you need to purchase an air handler as part of your HVAC system is to take a look at the temperatures where you live, like here in Rome. The US Energy Information Administration (EIA) reports since 2015, separate efficiency standards were set for different heating and cooling systems in both northern and southern regions. An air handler, when necessary, can help with these efficiencies.
If you live in an area with mild temperatures that rarely see cooler numbers on the thermometer, say in a balmy climate, you will most likely need an air handler. In this situation, a split-system air conditioner with an outdoor condenser and indoor air handler is frequently used. If you live in the South where you may experience some cooler temperatures but generally see higher ones, you will most likely be installing a heat pump and an air handler. If you live in the North, especially the upper North where temperatures definitely dip into frigidity, you will want a high-efficiency gas furnace but no air handler.
We Are Your Air Handler Experts
There are many factors to consider when it comes to air handlers. If you have any questions on whether you need an air handler as part of your HVAC system, call 770-748-3573 or request service online to talk to one of our Haynes Heating & Air Conditioning experts here in Rome, GA. We are always happy to discuss air handlers.
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Frequently Asked Questions
Do air handlers heat and cool?
Air handlers can be used in both heating and cooling processes. They distribute conditioned air throughout a building when paired with a heating or cooling system, but they do not generate heat or cold on their own.
How do air handlers work?
Air handlers work by circulating air through a heating or cooling system. They draw in air, filter it, condition it, and then distribute it through ductwork to maintain indoor comfort.
Are air handlers and furnaces the same thing?
Air handlers and furnaces are not the same thing; air handlers circulate air through the HVAC system, while furnaces specifically heat the air. Both play distinct roles in temperature management within a building.
What are air handlers AC furnace?
Air handlers in an AC furnace system are responsible for circulating air throughout the home. They work by drawing in air, conditioning it, and then distributing it via ductwork, ensuring consistent temperature and comfort indoors.
Do air handlers have heat?
Air handlers can provide heat, but it depends on the specific model and configuration. Some air handlers are designed with heating elements or can be paired with a furnace or heat pump to deliver warm air to your space.
What are the advantages of a variable speed blower in an air handler?
The advantages of a variable speed blower in an air handler include enhanced energy efficiency, improved temperature control, quieter operation, and better humidity regulation, providing more consistent comfort in your indoor environment.
How do I know if my air handler is bad?
Signs that your air handler may be failing include unusual noises, poor airflow, frequent cycling, or water leaks. If you notice these issues, it may indicate that your air handler is bad and needs inspection or repair.
Can air handlers operate in extreme temperatures?
Air handlers can operate in extreme temperatures, but their efficiency and effectiveness may be compromised. It's essential to select units designed for such conditions to ensure optimal performance and longevity.
What maintenance do air handlers require regularly?
Regular maintenance for air handlers involves checking and replacing filters, cleaning coils, inspecting ductwork for leaks, lubricating moving parts, and ensuring proper airflow to maintain efficiency and prolong the unit's lifespan.
How efficient are air handlers for heating?
The efficiency of air handlers for heating varies based on their design and features. Generally, well-designed air handlers can effectively distribute heated air, contributing to energy savings and overall heating efficiency.
What functions do air handlers serve in HVAC?
The functions of air handlers in HVAC systems include circulating and conditioning air, filtering contaminants, controlling humidity, and distributing heated or cooled air throughout indoor spaces to ensure optimal comfort and air quality.
What size air handler is appropriate for my home?
The appropriate size air handler for your home depends on your heating and cooling needs, typically measured in BTUs. For accurate sizing, consult an HVAC professional who can consider your home's square footage, insulation, and climate.
Do all air handlers use the same filters?
Not all air handlers use the same filters. Each air handler may require specific filter types and sizes based on its design and airflow needs, so it's essential to check the manufacturer’s specifications for the correct filter.
Are air handlers suitable for humid climates?
Air handlers are indeed suitable for humid climates. They effectively circulate and dehumidify indoor air, improving comfort levels and maintaining optimal humidity, which is essential in such environments.
How often should air handler filters be replaced?
Air handler filters should be replaced every one to three months, depending on usage and environmental factors. Regular replacement helps maintain efficient airflow and improves indoor air quality.
What causes air handler noise during operation?
The causes of air handler noise during operation include loose components, airflow obstructions, and imbalanced fan blades. Additionally, vibrating ducts or inadequate insulation can contribute to unwanted sounds. Regular maintenance can help minimize these noises.
Can air handlers be used for ventilation?
Air handlers can indeed be used for ventilation. They help circulate and condition air, improving indoor air quality by bringing in fresh outdoor air and distributing it throughout the building.
What is the lifespan of an air handler?
The lifespan of an air handler typically ranges from 15 to 25 years, depending on usage, maintenance, and the quality of the unit. Regular maintenance can help extend its operational life.
How do air handlers impact energy bills?
Air handlers significantly impact energy bills by circulating conditioned air throughout your home. Efficient air handlers help maintain consistent temperatures and reduce energy consumption, ultimately leading to lower utility costs.
What features should I look for in air handlers?
The features to look for in air handlers include energy efficiency ratings, noise levels, filtration systems, compatibility with heating and cooling systems, airflow capacity, and ease of maintenance to ensure optimal performance and air quality.
Do air handlers require professional installation?
Air handlers typically require professional installation. This ensures that the unit is correctly set up for optimal performance and efficiency, complying with safety standards and regulations.
What is the difference between single-zone and multi-zone air handlers?
The difference between single-zone and multi-zone air handlers is that single-zone systems cool or heat one area, while multi-zone systems can independently control the temperature in multiple areas for greater comfort and efficiency.
Can air handlers be installed outside?
Air handlers can be installed outside, but they must be specifically designed for outdoor use to withstand weather conditions and ensure efficient operation.
How do you troubleshoot common air handler issues?
Troubleshooting common air handler issues involves checking the power supply, inspecting the filters, ensuring the blower motor is operational, and looking for any obstructions in the ductwork. Regular maintenance can help prevent these problems.
Are air handlers compatible with smart thermostats?
Air handlers are indeed compatible with smart thermostats. Many modern smart thermostats can work seamlessly with air handlers, allowing for enhanced control and energy efficiency in your heating and cooling systems.
What types of air handlers are available?
The types of air handlers available include blow-through, draw-through, and variable air volume (VAV) air handlers, each designed to improve air circulation and manage temperature in various HVAC systems.
How do air handlers differ in commercial applications?
Air handlers in commercial applications differ primarily in size, capacity, and complexity compared to residential units. They are designed to accommodate larger spaces, manage greater airflow, and integrate advanced controls for efficient temperature and humidity regulation in diverse environments.
What is the best location for an air handler?
The best location for an air handler is typically in a basement, attic, or utility room, ensuring adequate clearance for maintenance and optimal airflow throughout the space.
How does air flow affect air handler performance?
Air flow significantly affects air handler performance by determining the efficiency of air circulation throughout a building. Proper air flow ensures optimal heating and cooling, while inadequate flow can lead to reduced comfort and increased energy consumption.
Can air handlers be used in retrofitting projects?
Air handlers can indeed be used in retrofitting projects. They offer flexibility in integrating new HVAC systems, enhancing air distribution efficiency and comfort in existing buildings.
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Types of Air Handlers
Air handlers come in various types, each designed to meet specific heating and cooling needs. The most common types include standard air handlers, which are used in conjunction with traditional HVAC systems, and specialized units like variable air volume (VAV) systems that adjust airflow based on demand. Understanding the differences can help homeowners choose the right air handler for their specific requirements, ensuring optimal performance and comfort in their homes with the help of Haynes Heating & Air Conditioning Rome.
In addition to standard and VAV systems, there are also packaged air handlers that combine heating and cooling in one unit, making them ideal for smaller spaces or homes without ductwork. Another type is the multi-zone air handler, which allows for different temperature settings in various areas of a home. Each type has its advantages, and consulting with experts can provide valuable insights into which option best suits your living situation, such as those offered by Haynes Heating & Air Conditioning Rome.
Benefits of Installing an Air Handler
Installing an air handler can significantly enhance the efficiency of your HVAC system. By improving air circulation and filtration, air handlers help maintain a consistent temperature throughout the home while also reducing energy consumption, leading to lower utility bills. This efficiency translates to a more comfortable indoor environment, especially in homes that experience fluctuating temperatures, a benefit that can be realized with services from Haynes Heating & Air Conditioning Rome.
Moreover, air handlers can improve indoor air quality by filtering out dust, allergens, and other pollutants. Many modern air handlers come equipped with advanced filtration systems that can trap microscopic particles, making the air in your home healthier to breathe. This is particularly important for families with allergy sufferers or respiratory issues, and professional guidance from Haynes Heating & Air Conditioning Rome can help you choose the right air handler with the best filtration options.
Maintenance Tips for Air Handlers
Regular maintenance of your air handler is crucial for ensuring its longevity and optimal performance. Homeowners should schedule routine inspections to check for dust buildup, filter conditions, and any signs of wear and tear. Keeping the filters clean and replacing them as needed can prevent airflow issues and enhance energy efficiency, a practice that can be easily managed with the assistance of Haynes Heating & Air Conditioning Rome.
In addition to changing filters, it's important to inspect the blower motor and ensure that it is functioning correctly. Lubricating moving parts and checking electrical connections can help prevent breakdowns and extend the life of the unit. Engaging a professional for annual maintenance checks can ensure that your air handler operates smoothly and efficiently, providing peace of mind and comfort for your home, especially with expert services from Haynes Heating & Air Conditioning Rome.
Common Issues with Air Handlers
Air handlers can experience a variety of issues that may affect their performance. Common problems include reduced airflow, strange noises, and inconsistent temperatures throughout the home. These issues can often be traced back to clogged filters, malfunctioning blower motors, or ductwork leaks, all of which can compromise the efficiency of your HVAC system. Identifying these problems early can save homeowners from costly repairs later, and Haynes Heating & Air Conditioning Rome can provide the necessary expertise to troubleshoot and resolve these issues.
Additionally, air handlers may face electrical problems such as blown fuses or tripped breakers, which can disrupt their operation. Regular maintenance and prompt attention to these signs can help prevent more serious issues from developing. Homeowners should not hesitate to reach out to professionals who can diagnose and fix these problems quickly, ensuring that their air handler operates at peak performance, a service readily available through Haynes Heating & Air Conditioning Rome.
