Toshiba Estia

Bring your Toshiba Estia air-to-water heat pump into Homey. Talks directly to the unit over Modbus on your home network — no cloud, no delays. Read every temperature sensor, see when the pump faults, and control on/off, mode, setpoints, DHW boost, anti-freeze, night setback and weather-compensated mode from flows. It also works out the season (summer, mid-season or winter) from the average outdoor temperature, so your flows can switch between heating and cooling at the right moment. The app also estimates the heat pump's electrical power and energy use (a calculation, not a measurement). Already measuring the heat pump with its own energy meter in Homey, for example a Shelly EM? Then exclude this device from Homey Energy in its settings, so the consumption isn't counted twice. Requires a Toshiba BMS-IFMB0UEW-E (or similar) Modbus RTU interface wired to the heat pump's AB bus, plus any Modbus TCP gateway connected to the interface (Waveshare RS485-to-WiFi/ETH, Elfin EW-11, USR-W630 or similar). Your Homey Pro must reach the gateway on the local LAN. Supports R410A 4 Series WM, R410A 5 Series WM, and R32 1/2 Series (WM and AIO) Estia hydro units. Single-zone or dual-zone installations, with or without a domestic hot water tank — toggle each in the device settings and only the relevant capabilities show up. Toshiba and Estia are trademarks of Toshiba Corporation. This is a community-developed app and is not affiliated with or endorsed by Toshiba.