Very Simple and clear in use for all my customers. Last summer I fixed 8 in one house, kitchen, living, 2 bathrooms and 4 beds, mix UFH and rads with HUB customer controls every single room 24/7 through the internet
Replacement for early version that died after 7 years use! No support from Heatmiser to explain why these thermostats give up after only a few years. Always the power supply fails, the display still works on another unit!