Hello
Lol i definitely had a similar situation...but my heater completely roasted the plant and it was basically dead within a day or two.
Yours looks still green and healthy, so just back off the heat, never point it directly at the plant, maybe just warm the room around the tent or grow area and just try to keep the environment as pleasant as possible for the next week to watch for negative effects. You can use kelp extract for a nice plant tonic when it gets a huge shock like this too.👍