HeatMeister

HeatMeister radiator fan modules push warm air from your radiators directly into the room, spreading heat where it matters instead of letting it rise to the ceiling. This app brings your HeatMeister devices into Homey over your local network so you can watch temperatures, set fan speed, and fire up boost mode right from the Homey interface. With Homey Flows you can take full control: ramp the fan automatically when inlet water temperature climbs, cut it once the room reaches your target, and track inlet and outlet temperatures to see exactly how hard your heating system is working. Insights graphs are available for room, inlet, outlet, Delta-T and target temperatures, fan speed, inlet temperature trend in °C/min, and estimated power consumption. A "Firmware update available" Flow trigger fires when SDR Engineering publishes a new HeatMeister firmware version. The trigger includes a token with the direct URL to the device's update page, so a tap on a notification takes you straight there. Estimated power consumption is calculated from the number of fans, the wattage of a single fan at full speed, and the module's standby wattage — adjust these values in the device settings to match your setup. The advanced control parameters from the HeatMeister web page, such as the speed profile, switch-on difference, overrun, automatic boost and sensor offsets, can be changed in the device settings (firmware v2.9.2 or newer). Firmware updates can be installed from Homey: via Maintenance, a Flow card or automatically.