I don't know about energy savings. I would be more concerned about functionality.
Our last TT, not a Jayco brand, had a great heater, but it was very loud when running. We preferred to use a space heater instead of the built in heater. Even though it had an automatic shut-off, if tipped over, I didn't trust using the heater when we weren't nearby.
The link below seems to have some good information for you to consider before choosing.
https://www.21oak.com/home-maintenan...diant-heaters/