You should follow this guides:

Heat http://docs.openstack.org/havana/install-guide/install/yum/content/heat-install.html

Ceilometer http://docs.openstack.org/havana/install-guide/install/yum/content/ceilometer-install.html

As the first answer implies, heat and ceilometer are more integrated with Havana. If you already have a grizzly install, then it's worth looking at the RDO specific ceilometer and heat grizzly documentation at:

http://openstack.redhat.com/CeilometerQuickStart

http://openstack.redhat.com/Deploy_Heat_and_launch_your_first_Application