On 19 January 2020, Heta won a two-year PDC Tour Card by finishing fourth on the UK Q School Order of Merit. He won his first PDC ranking event at the PDC Autumn Series in Niedernhausen, beating Joe Cullen 8–4 in the final.

Heta, in conjunction with Simon Whitlock, beat Wales in the 2022 PDC World Cup of Darts on 19 June 2022 to claim the title for Australia for the first time, after Whitlock and Paul Nicholson lost in the grand final in 2012 to England.
Heta won the 2022 Gibraltar Darts Trophy on the PDC European Tour in October 2022, where along the way, he defeated Michael van Gerwen in the semi-final and Peter Wright in the final.[5]