My UH8-RF is installed in a metal cabinet, will the RF work? November 20, 2018 08:18 Updated Follow When the UH8-RF is installed in a metal cabinet, you should use the external aerial available here. The aerial should be positioned outside of the cabinet to ensure the UH8-RF can function correctly. Related articles Do I need a neoHub? Setting up the neoAir with the UH8-RF My wiring centre only communicates to the last thermostat I paired? What can cause RF signal issues? Where do I connect the heating valve on the RF switch?