Check out the video to see our selection tool in action.

AirPro was at ABMA 2026 in Nashville this spring. Our booth tour, recorded by Engineered Systems News, focused on two capabilities most relevant to the boiler and burner audience at the show: the efficiency of our backward curve fan line and the flow control enhancements we recently added to myAirPro, our fan selection software. Chris Humphrey walked through both on camera. The notes below expand on what he covered.

Backward Curve Efficiency Up to 85%

For boiler and burner applications, fan efficiency translates directly into operating cost. The fan moves a specific volume of air against system resistance, often continuously, and every percentage point of efficiency given up at the fan shows up on the utility bill over the life of the system.

Our backward curved fan line reaches up to 85% efficiency. That means more of the energy going into the fan is used to actually move air, and less is lost in the process. For continuous-duty boiler and burner applications, that difference compounds quickly.

Custom Damper Position Controls in myAirPro

myAirPro has always shown the standard data engineers expect when evaluating a fan: pressure, volume, power, and efficiency curves for the selected unit. With the most recent update, you can now control the operating conditions on the curve chart at a much finer level.

When you turn on the volume control, you can view fan performance at four different damper positions on the same curve, or toggle individual segments on and off to focus on the conditions you care about. You can enter a specific damper open percentage manually, or step through positions incrementally and watch the curve update in response. The result is a performance view that reflects the actual operating point you intend to run.

For boiler and burner manufacturers, this is meaningful because burner load changes, draft conditions change, and the fan needs to deliver different volumes at different points in the operating cycle. Being able to see exactly how the selected fan performs at the damper positions your system will actually run helps you select with confidence.

VFD Speed Controls

The same approach applies to variable frequency drive control. You can enter a specific speed or step through speeds incrementally, and watch the fan curve shift accordingly. Combined with the damper position controls, you can model the fan operating at any combination of speed and damper position you expect to see in service.

For applications where airflow modulates across a wide operating range, this gives you a way to validate the fan selection across the full operating envelope, not just at full speed with the damper wide open.

Less Guesswork in Fan Selection

The purpose of these updates is to take guesswork out of fan selection up front. Boiler and burner fans operate in conditions that change moment to moment, and selecting against a single point at full speed and full open damper rarely tells the whole story. By letting you model the conditions you actually plan to run, myAirPro helps you arrive at a fan selection that is both efficient and right-sized for the way the system will operate.

Try the Tool

You can access myAirPro at airprofan.com/myairpro. If you’d rather have one of our application engineers walk through a selection with you, our team is available at (715) 365-FANS (3267) or fans@airprofan.com.