I think Bluestar only makes the 24" as an RNB series now. But they have choices in the door-standard lower hinges or swings open at the side. Also you can change the cooktop burners etc. and colors of course.

At one time, they made a slightly different model in 24". The 'plating' area in the front had a beveled look to it.. like the "Heritage Classic" and it had chrome knobs. But basically the same.

The latest model has the rolling rack and is identical to the bigger RNB versions. Mine is not the latest V1.

The RNB 'V1' edition has solved the few problems they had (door hinges)and made several upgrades as well.

I really love my Bluestar and would buy one again. I don't think anything cooks as well. And I like the size.