Using a 120 V unit at 240 V is not the typical failure case, and there is no complaint about the unit blowing up.
The problem is that there are other ways a transformer can fail, even if a 120 V unit is used at 115 V, e.g. a unexpected short from repeated hot / cold cycles or a damage to the enamel from grid transients. It is these cases that can pose a safety hazard if there is no fuse at the primary of the transformer. If one sits next to it the smoke is bad enough,
but there could also be a fire hazard form the transformer and case getting too hot.
It does not look there is a reliable way for the current to be interrupted in case of an overheating transformer. One should not let the iron run unattended, but this stall happens sometimes by mistake.
Not sure what would have happened if Dave had not turned off the unit when the smoke came out, but took the camera. It is still possible they have flame retardant plastic so they can safely a few cents on the fuse.
What if there were some paper based schematics, electronics magazine, parts catalogue, tissue box or iso wipes nearby to fuel the barbeque?
Even though highly unlikely (
...famous last words? ) I've seen transformers shoot serious sparks through equipment vents when they go south, there's a source of ignition too.
Insurance or not, the victim is screwed to replace items, some perhaps uninsured, irreplaceable, expensive, or vintage/sentimental, as well as get back in business asap
And let's not forget that burnt out magic smoke and burning premises/water combo SMELL that just keeps on keeping on 24/7 !
All because some
arrogant company
bean counting twat refuses to install CHEAP basic safety measures,
post stone-age 'technology' that's been around since the 1800s to protect wiring, user, and manufacturers reputations
and stock market share pricesand doesn't even bother to give past and present customers a simple heads up about it, and or an offer to rectify the issue
Everyone also needs to consider our Fire Brigade/Departments sorting real danger in the community, especially in summer months,
instead of blowing their rest time and wasting resources mopping up manufacturer's cheapassery based snafus,
after taking their trusting customers cash