When you’re replacing your AC or upgrading to an R-32 system, the air handler is just as important as the outdoor unit. But how do you pick the right one without getting overwhelmed by specs and model numbers?
Let’s break it down — no tech jargon, just what you really need to know.
What Exactly Is an Air Handler?
Simply put, it’s the indoor component of your HVAC system that moves the cooled or heated air through your ducts. It contains the blower fan and the evaporator coil, and sometimes heating elements if you have a heat pump or dual-fuel system.
Step 1: Match Your Air Handler to Your AC Unit
Your air handler and condenser need to be a matched set for the best efficiency and performance. If you’re buying an R-32 condenser (like the ones at The Furnace Outlet), make sure the air handler is specifically designed for R-32 refrigerant.
Step 2: Determine Your Home’s Cooling Capacity Needs
The size of your air handler should match the tonnage of your AC system, which is usually based on your home’s cooling load (measured in BTUs). If you have a 3-ton AC, get a 3-ton air handler.
Step 3: Decide on the Blower Type and Motor
Most modern air handlers come with ECM motors — these are variable speed, energy-efficient, and quieter than older single-speed motors. They also improve humidity control and overall comfort.
Step 4: Consider Installation Location and Air Handler Orientation
Air handlers come in different configurations: upflow, downflow, horizontal left, or horizontal right. Choose one that fits your home’s layout — for example, horizontal for tight attic or crawlspace installs.
Step 5: Look for Added Features
-
Insulated Cabinets to reduce noise and condensation
-
Internal TXV (Thermal Expansion Valve) for precise refrigerant control
-
Low Air Leakage Cabinet for better efficiency
-
Smart Controls for compatibility with modern thermostats
Why Goodman AMST Series Is a Popular Choice
The Goodman AMST series is built for flexibility and performance — multi-position installation, 9-speed ECM blower, and an all-aluminum coil. It’s designed specifically for R-32 systems, which makes it a solid pick for energy-conscious homeowners.
Check it out here:
🔗 Goodman AMST Series Air Handlers
Tony’s Pro Tip
Don’t just buy the cheapest air handler you find. Think long-term. A properly matched, quality air handler improves efficiency, extends the life of your system, and keeps your home comfortable year-round.
