Hi Ds
Yes i have this hot box, the guys who provide me with parts and repairs can build a hot box,the coil etc are much the same as on this model, the hot box is smaller than the vulcano-but does the same job, i have replaced the transformer,fuel pump and electrodes, but at some point in the hot box life span dependant on work load repairs are par for the course.
Given my current workload i will be investing in a second hot box, 3.5kva gen is more than sufficent to run, you only need to power the fuel pump-ignition-fan.
I havnt looked back since converting to hot-you will have to consider vehilce size to accomodate any additional kit you have or would like to have
regards
Billy