"Burn Off Oven"

Has anyone here heard of or used a commercial "Burn Off" oven for biochar production?
Also, do we have any SC members on board...?

I recently came into a used Burn Off oven and plan to produce (volume) biochar, but these ovens were intended as a 'cleaning oven' for metal parts/hardware.
While I'm fairly confident the oven will make a good product, I'm also seeking a possible revenue stream for the by-products.

Welcome to Permies!

I have not personally have used a burn-off stove for biochar but the idea is an interesting one!

How is it powered? I wonder if the fuel/electrical costs might be an issue if you were planning on 'commercializing' the process. I could be wrong! How did you manage to get your hands on such a piece of machinery?

I found the brochure for Bayco (Guspro) ovens here and it sounds like they are gas powered, with electrical requirement as well. Since they imply that (in the designed use) the fumes are all burnt up, it seems it should work for biochar production. You will have to work out whether the costs of operating will be less than your finished product value.
Theoretically the burn off from the feedstock should offset some of the gas requirements, but I don't know how this might be controlled. It would be interesting to see your results.
I'm thinking the oven could be used to do carbon content testing of soils too, although maybe overkill!

I've been fortunate to come across a few good deals on (FB) Marketplace where the offers were, "If you can handle it, you can have it..."
In this case, it's an older unit set up for propane. It needs a couple of solenoids and a burner sensor, but that's not too bad.

It has a 48cf process chamber and fires up to 900° with a water mist to control 'runaway' situations.
It also has a 'relief' hinged lid in case of unscheduled combustion (explosions).

I should be able to offset labor and fuel expenses by loading large 4ft pieces (less chainsaw and splitting) on the front end.
We'll see how the backend process goes...

Assuming everything goes as planned, I need a commercial application (revenue stream).
What are most people doing with excess biochar?
Is anyone making activated carbon for water filtration?

I'm also considering my hand at firing large (30-50gal) pots made from clay fire ant mounds, [retaining the carbonized ants for cosmetic appeal~]