Do You Need Both a Furnace and an Air Handler in an HVAC System?
Do you need both a furnace and an air handler in an HVAC system?
No, you do not always need both a furnace and an air handler in an HVAC system. If you choose a conventional gas furnace and air conditioner, an air handler is typically not required because the furnace handles air movement. However, if you install an electric heat pump system, an air handler is usually included as part of the setup.
What Is the Difference Between a Furnace and an Air Handler?
A furnace and an air handler both play important roles in HVAC systems, but they serve different functions.
A furnace is designed to generate heat and distribute conditioned air through the ductwork. In many traditional HVAC systems, the furnace contains a blower that moves air throughout the home.
An air handler, on the other hand, is primarily responsible for circulating air. It contains components such as a blower fan and evaporator coil and is commonly paired with heat pump systems.
The type of HVAC system you choose determines whether you need a furnace, an air handler, or sometimes both components working together.
When Is an Air Handler Not Necessary?
If you are installing a traditional gas furnace with a central air conditioning system, an air handler is generally unnecessary.
In this setup, the furnace already includes a blower motor that moves heated and cooled air through the duct system. Because the furnace performs the air distribution function, a separate air handler would typically duplicate equipment already built into the system.
Many homeowners in Prescott Valley, Arizona choose conventional furnace and air conditioning combinations when evaluating heating and cooling options. In these systems, the furnace often serves as the central air-moving component.
As a result, purchasing both a furnace and a separate air handler is usually not required for this type of HVAC configuration.
When Does a Heat Pump Require an Air Handler?
Heat pump systems operate differently from conventional furnace systems.
Rather than generating heat through combustion, a heat pump transfers heat between the indoors and outdoors. Because there is no traditional furnace cabinet containing a blower, an air handler is commonly installed indoors to circulate conditioned air throughout the home.
An air handler paired with a heat pump may include:
- A blower fan
- An evaporator coil
- Electrical components and controls
- Supplemental electric heat strips in some systems
For homeowners considering heating and cooling options in Prescott Valley, Arizona, understanding this relationship is important. In most cases, purchasing a heat pump means an air handler will be part of the overall system design.
Common Misconception: Every HVAC System Needs an Air Handler
A common misconception is that every HVAC system requires both a furnace and an air handler.
In reality, HVAC equipment is selected based on the type of heating and cooling system being installed. Traditional gas furnace systems typically rely on the furnace’s built-in blower, while heat pump systems generally use an air handler for air circulation.
The need for an air handler depends on the system configuration rather than being a universal requirement for all homes.
How Can You Determine Which System Is Right for Your Home?
Choosing between a furnace-based system and a heat pump system involves several considerations.
Factors that may influence the decision include:
- Existing HVAC equipment
- Available energy sources
- Home size and layout
- Heating and cooling preferences
- Long-term comfort goals
Understanding whether a furnace or air handler is necessary starts with identifying the type of HVAC system being installed. Once that is determined, the equipment requirements become much clearer.
In many cases, homeowners are surprised to learn that they may not need both components. The answer largely depends on whether the system relies on a conventional furnace or a heat pump for heating.
FAQ
Can a furnace work without an air handler?
Yes. Most conventional gas furnaces contain their own blower system, allowing them to move air through the ductwork without a separate air handler.
Do heat pumps always use an air handler?
Most residential heat pump systems are paired with an air handler that circulates conditioned air throughout the home.
What does an air handler do in an HVAC system?
An air handler helps move heated or cooled air through the duct system and typically contains the blower fan and evaporator coil.
Is a furnace considered an air handler?
Not exactly. A furnace provides heating and often contains a blower, while an air handler is primarily designed to circulate air within certain HVAC systems.
FAQ:
https://fiscorhvac.com/faq/#do-you-need-both-a-furnace-and-an-air-handler-in-an-hvac-system
Conclusion
Whether you need both a furnace and an air handler depends on the type of HVAC system you choose. Traditional gas furnace and air conditioning systems generally do not require a separate air handler, while heat pump systems typically include one as part of the installation.



