Methods and systems are provided for a fuel system. In one example, a method may include adjusting operation of a fuel-operated heater (FOH) and an exhaust system to regenerate the FOH. The operation may include flowing gases from the exhaust system to the FOH to return the FOH to a less coked state.

Methods and systems are provided for a fuel system. In one example, a method may include adjusting operation of a fuel-operated heater (FOH) and an exhaust system to regenerate the FOH. The operation may include flowing gases from the exhaust system to the FOH to return the FOH to a less coked state.