* Add config flow
* Make sure the device is polled - refactor
* Fix
* Add tests config flow
* Update test requirements
* Ensure dispatcher has a unique signal per heater
* Followup on review
* Follow up comments
* One more docstr
* Make specific try blocks and refactoring
* Handle import exceptions
* Restore removed lines
* Move initial heater update in try block
* Raise issue failed import
* Update test codeowners
* Remove entity device info
* Remove entity device info
* Appy suggestions from code review
* Remove broad exception handling from entry setup
* Test coverage
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