AutomateNexus

Case study · HVAC

HVAC System Automation for a Multi-Location Restaurant Chain

IoT-driven HVAC automation across 25 restaurants cut energy costs 32% and comfort complaints 89%, with full ROI in 14 months.

Client — Restaurant chain, 25 locations

Stack — IOT · MQTT · SMART THERMOSTATS · N8N · WEATHER API

/ Headline result

−32%

ENERGY COSTS, ALL LOCATIONS

89%

CUSTOMER COMFORT COMPLAINTS

+4 yrs

ESTIMATED EQUIPMENT LIFESPAN

14 mo

TO FULL ROI

/ 01 · The challenge

Across 25 locations, temperature control was whoever-walks-past-the-thermostat. Kitchens overrode dining room settings, staff adjusted by feel, and equipment ran hard after hours because nobody was responsible for turning it down.

The chain was paying for it twice: energy bills well above benchmark, and a steady drip of customer complaints about dining rooms that were too hot, too cold, or both in the same visit. Equipment was also aging fast under uncontrolled run-time.

/ 02 · The build

We implemented an IoT-powered HVAC automation system. Sensors monitor temperature zones in every location in real time, and the system adjusts settings automatically based on occupancy, kitchen load, and weather — no thermostat wars, no after-hours waste.

The same sensor data feeds predictive maintenance: units drifting out of normal operating patterns get flagged before they fail on a summer Friday. Headquarters monitors and controls every location from a single dashboard.

/ 03 · The results

Energy costs fell 32% across all locations, and the system paid for itself in 14 months. Customer comfort complaints dropped 89% as dining rooms held steady temperatures through service rushes.

Controlled run-time and predictive maintenance are projected to extend equipment lifespan by roughly four years per unit — deferred capital expenditure that compounds across 25 sites. Facilities management went from reactive dispatch to scheduled, planned work.

Our customers and staff are more comfortable, our energy bills are dramatically lower, and we can monitor and control everything from our headquarters.

COO

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