Why would installers deal with cheap Chinese devices? Every installer I’ve dealt with has a relatively small selection of vendors and devices that they know and trust. They aren’t reselling random crap from Amazon.
No, they're each having a relatively small selection of vendors re-selling white-label Chinese crap.
In my case: local A/C installers are reselling Haier aircons. Good hardware. Shit software (see "tale of the two apps" elsewhere in this thread). Or, a nice local company selling floor heating solutions. Got electric floor heating from them. Control panels have "smart home integration". Guess who made that? Tuya. The world's finest seller of white-label "smart" devices. Complete with a shit app.
Home Assistant is the only thing that makes the two device classes more convenient remotely than through an IR remote or using the wired-in control panels.
