Just looked it up. Cool. Now that I see the design I’m wondering where I’ve seen one before..
I’m stuck with the squared for now
Discussion
I wonder if you could modify the firebox to be more similar to a Rumford in some way. Especially if you used something reflective to help radiate the heat outward. Stainless steel or something. Just go grab a fridge off the side of the road and start playing around with the shape of the firebox.