When it comes to boiler room efficiency, even a small upgrade can lead to major, long-term savings. That’s what happened at a central plant in Maryland, where a simple retrofit led to over a decade of energy and cost reductions.

The project started with the facility installing a Variable Frequency Drive (VFD) on an aging linkage boiler, paired with Preferred’s PCC-III Utility Saver Controller. Forced draft fan motors typically run at full capacity regardless of system demand, wasting power. But with a VFD, the fan speed automatically adjusts to match real-time load, reducing electrical consumption dramatically.

Think of it like driving a car: you don’t floor the gas pedal and control speed with the brakes. You press the gas only as needed. The same logic applies to your boiler’s energy use.

Using Preferred’s Energy Saver Payback Analysis Tool, the facility calculated a two-year payback period, after which the savings kept growing. A decade later, the system continues to deliver significant reductions in electricity, fuel consumption, and emissions, thanks to proper tuning through the Utility Saver controller.

Ready to see how much you can save?
Run the numbers for your own facility with Preferred’s free online tool:
👉 Energy Saver Payback Analysis Calculator