ROI Calculator

See your savings before you buy.

Enter your system specs and see live energy savings, payback period, and 4-year ROI — calculated to ASHRAE 185.2 standards.

1 — Project Details

Installation Type

New coils start clean, so first-year fan savings are typically lower than shown; expected savings ramp up over the first 12–24 months as coil fouling would otherwise accumulate.

Annual Operating Hours

8,760 = continuous (24/7/365)

2 — System Configuration

Product Series

Lamp Size

Lamp Wattage (W)

Auto-filled — override with your spec sheet value

Number of Fixtures

Each fixture holds one lamp; enter the total number of fixtures you plan to install.

Airflow (CFM)

Clean Coil Pressure Drop (in.w.g.)

Dirty Coil Pressure Drop (in.w.g.)

Total System Cost ($)

3 — Economic Factors

Energy Rate Region

Annual Replacement Lamp Cost ($)

Annual Coil Cleaning Cost ($)

Your current spend — UV-C eliminates this

Live Results

Updates as you enter values

$6,069

Net Annual Savings

0.8 yrs

Simple Payback

$19,275

4-Year Net Gain

$3,016

Energy Savings/yr

$5,000

Maintenance Savings/yr

Calculation Breakdown

Pressure differential (dirty − clean)1.00 in.w.g.

Fan HP saved2.622 HP

Fan kW saved (×0.746 kW/HP × 0.8 control)1.565 kW

Annual energy savings$3,016

Maintenance savings (coil cleaning)$5,000

UV-C lamp draw0.232 kW

UV-C energy cost/yr$447

UV-C annual operating cost−$1,947

Net annual savings$6,069

Ready to move forward? Our team will spec the right system for your facility.

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Disclaimer: Results are estimates based on ASHRAE Standard 185.2 methodology using the inputs provided. Actual savings will vary based on site conditions, coil fouling rates, local utility rates, and system configuration. Consult a VXE Air representative for a validated energy audit.