Looking for help finding the best small wood insert

[reimally]

I have a small (800 sq ft) house in Philadelphia, built circa 1850. I'd like to install a word burning insert into our existing fireplace, but the firebox is very small—only 15" in depth (24" high, 33" wide at the opening, 24" wide in the back). I know both the Regency Classic and Alterra will fit, but I don't love the look of them. I do really like the look of the Morso 5660—but it's several inches too deep.

My question is: are there any other small inserts that are more modern/Danish looking? I've looked around but am coming up empty.

 

[jetsam]

Maybe you could put one of the Morso wallmount units in there. They come pretty small, and you don't get much more Danish than a Danish company.