They only mention that the company pays for the internet service but I'd assume traffic/speed from a home could also be an issue. I mean the average home network connections aren't exactly amazing so what can be hosted on these servers (I doubt it's cost efficient to provide new infrastructure for every home)?
> A prerequisite for the use of Cloud&Heat is [...] an Internet connection of at least 50 Mbit/s https://www.cloudandheat.com/en/index.html#heat-three
> Cloud&Heat sets up a separate Internet connection for server operation and bears all costs of this as well as liability for any damage.