T-Smart Tesla Hot Water Cylinder Thermostat - Upgrade Your Cylinder to a Genuine Smart Appliance (TIHTS)

Product Information

The t-smart performs the same function as the existing timer, so you’ll need to make sure you can bypass it either through re-wiring or by some kind of manual override mode (mine didn’t have this so had to rewire).

This polls every minute and gets current temp, setpoint, mode and updates a HA Sensor. It fires HA events if it receives unexpected responses or no response within a threshold.T-Smart is the most radical evolution of technology in the immersion sector for some time. The T-Smart is the future of hot water heating and is the first generation smart immersion of its kind in the UK. We believe T-Smart will be for hot water what Nest and Hive have become for central heating, providing the homeowner with full smart control of the cylinder.

T-Smart (Tsmart) Hot Water Cylinder Thermostat (head only – does not include immersion heater element) TIHTS This repository provides a custom component for enabling a Tesla T-Smart immersion heater thermostat to be used with Home Assistant. Discovery Flow (not needed if you already know its IP). Really simple, sends broadcast and listens for responses just so you can get the IP.The whole thing has been a bigger job than I thought, make sure you know exactly what’s going on with your existing wiring and controller. This is a community developed and maintained project, and is not supported or endorsed by Tesla (UK) Ltd. Installation I thought Amanda’s instructions were excellent - just enough information for a Home Assistant novice such as myself to get it set up. Being able to see the temperature of the hot water in the app was better than nothing but getting a graph is really useful- I’ve now realised that it only takes an hour or so to heat the tank with electric so I will set it to come on towards the end of the 4 hour cheap window rather than at the start. Also our kitchen is a long way from the hot water cylinder and I can also see a big temperature drop when washing the dishes so I need to do something about that.