One of the best way to get started with ThermIQ2-Web is to install it on a Raspberry PI. That gives a small, power efficient solution that can and should be left always on. The install on Raspberry PI is fairly streamlined but requires some Linux knowledge.
The step-by-step install guide can be found here: ThermIQ2 installation on Raspberry PI
All that’s needed is a Raspberry PI3 or Pi4, a minimum 16GB SD-card and a suitable power and the ThermIQ-MQTT board.