I have noticed that Thor has been making changes to the stove tops over the last few years- 2 propane burners in 2018, 1 propane/1 induction in 2019, and then back to 2 propane burners (with electronic ignition) in 2020.
Is there a reason in particular you want to change your cook tops? I have never used induction but i know a lot of people like it.
In response to your question- my 2018 vegas has a large gas header that splits the gas from the tank to the hot water heater, cook top, fridge, and exterior port with flexible black hoses.
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