Indirect fire through jacket

[itivino]

I'm trying to figure out a way to do indirect fire heating on a homebrew scale, mainly as a prototype for a larger system. Not able to find a ton of info on indirect heating on the probrewer side, but it seems like a really nice alternative to steam. Would be a post boil conical all-in-1 system that would be indirect heated to boil, chilled, fermented in, cold crashed, carbonated in, served from.

The chilling part isn't a problem on the homebrew level, but I'd like to try the heating as well - could something like https://www.amazon.com/dp/B0000C6E3H/?tag=skimlinks_replacement-20 be forced into a conical fermenter jacket and work? Or is that just silly?

Pressure rating of the jacket to deal with both heating and cooling jumps out as the first possible thing to me, dry fire warping, going from boil to chilling warping.

 

[itivino]

With a quick update, I was able to somewhat get the above to work, but it's difficult to restrict the torpedo down to a small 1/4" opening on the jacket without losing a ton of heat. Can still heat up 12 gallons or so at 2F / minute, without any outside insulation on the fermenter. Maybe I just need to stick a strong blower on the back of it to help feed it oxygen so I can close the system off a bit more.

Was also thinking of something like this: http://www.convectronics.com/images/catalog/Air15.pdf

Seems to be a relatively popular way to roast coffee: