The built-in support for Heat in Horizon has been removed in Queens in favour of a separate Horizon plugin:
not yet in RDO
Package is already in RDO
this would be regression if it was omitted in OSP 13
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.