The Thrustmaster TH8A manual gearbox is not explicitly listed in the official compatibility lists for the game "Need for Speed Heat". The compatibility lists on the Thrustmaster website mention various racing games, but "Need for Speed Heat" is not mentioned.

However, it is possible that the game could work with many racing games that support multi-USB and shifters due to the general compatibility of the TH8A gearbox. However, there is no official confirmation from the manufacturer for this specific compatibility.