Can LoRaWAN Deliver Hotel-Scale HVAC Automation?

Milesight has tested LoRaWAN-based HVAC automation under hotel-scale conditions. Across 100 simulated rooms, 200 devices, 135 hours of operation and more than 200,000 communication cycles, the system achieved a reported 99.26 percent success rate.

LoRaWAN put under hotel-scale stress

Can LoRaWAN deliver the reliability required for occupancy-based HVAC (Heating, Ventilation, and Air Conditioning) automation in hotels? Milesight addressed this question in a large-scale reliability test using its WT30x FCU thermostat and WS203 motion sensor in a simulated multi-floor hotel environment.

Milesight, a Chinese IoT company based in Fujian, develops sensing products and IoT solutions for smart buildings, traffic, security and smart city applications. The test examined whether wireless HVAC control can operate reliably across many rooms, devices and RF conditions.

Why occupancy-based HVAC control matters

Hotel rooms often remain unoccupied for long periods, while heating, ventilation and air conditioning systems are among the largest energy consumers in hotel operations. Occupancy-based control can switch rooms into setback mode when no guest is present and restore comfort when occupancy is detected.

For this to work, the full communication chain must be reliable: the sensor detects presence, the gateway processes the event, the thermostat receives and executes the command, and the system confirms the action.

Test setup with 100 rooms and 200 devices

The test simulated a three-floor hotel using the North American US915 LoRaWAN frequency plan. The setup included 100 WT303 Smart Fan Coil Thermostats, 100 WS203 Motion & TH Sensors and two UG65 LoRaWAN gateways in primary and secondary configuration.

Over 135 hours, the system logged 202,111 communication cycles. Each cycle covered the complete occupancy control loop, from room status detection to setpoint command and thermostat acknowledgement. A cycle counted as successful only if the full chain was completed.

Realistic RF conditions

The test environment included 154 external devices transmitting on the same frequencies. According to Milesight, these signals were not filtered out, so the results reflect shared-spectrum RF conditions rather than an isolated lab scenario.

For system integrators, this is relevant because hotel deployments depend on gateway placement, building layout, device density, reporting intervals and interference from other systems.

Reported results

After six rounds of parameter optimization, including spreading factor selection, retry logic, gateway configuration and reporting intervals, the final validation run reached a 99.26 percent overall system link success rate across more than 200,000 data cycles.

Milesight also reports a 100 percent device online rate during the full 135-hour run and 100 percent FUOTA remote firmware upgrade success across all 100 thermostats within two hours. Under stress-test conditions, 72 out of 100 device pairs achieved an individual success rate of at least 99 percent.

Milesight notes that the test used fixed periodic reporting to create high data volume. In normal hotel operation, sensors would usually transmit when occupancy status changes, reducing channel load.

Relevance for integrators and hotel operators

For hospitality system integrators, the test provides a documented benchmark for planning LoRaWAN-based room automation. It supports early assessment of gateway configuration, device count, reporting intervals and expected link success rates before deployment.

For hotel operators, the relevance lies in energy control without reducing guest comfort. Reliable occupancy detection enables HVAC systems to respond when a guest enters the room, while reliable setback commands help reduce unnecessary energy use when rooms are empty.

Milesight positions the WT303 and WS203 as part of a wider LoRaWAN hotel automation ecosystem, including door and window sensors, indoor air quality sensors, light sensors, gateways, cloud platforms and building management systems using standard protocols such as BACnet.

Read the full Milesight stress-test report here: https://www.milesight.com/iot/blog/lorawan-hotel-hvac-reliability-test