Viessmann in a nutshell: expensive equipment backed by digital services that feel like they were built in someone’s garage. The API seems to go down at least once a month, integrations stop working, data disappears, automations fail, and once again you’re left wondering whether the problem is your internet connection, Homey, Vitoconnect, or just another “temporary service interruption” on Viessmann’s side. I manage several properties, so this is not just a minor inconvenience for me. I rely on remote access and automation to manage heating systems across multiple locations, and I’m honestly fed up with this crap. A system like this is supposed to make property management easier, not force me to troubleshoot Viessmann’s cloud infrastructure on a regular basis.
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