Vented / Unvented - What happens if the safety devices are blocked

[Worcester]

Just caught tonight's Mythbusters on Quest

We all know that there are regulations around unvented cylinders, here's why: MythBusters: Exploding Water Heater : Video : Discovery Channel see what happens when the safety's are blocked off and it is just heated by the immersion!

And what it would do in your house: https://www.youtube.com/watch?v=9bU-I2ZiML0

So perhaps those safety checks are worthwhile

 

[Ermintrude]

Narr absolute balls . Nothing like that will happen. I always use 3/4 plug on tprv and. 1/2 on erv. Not never ad any issues!

 

[Worcester]

my posts may appear blunt or sarcastic......... that's because they are!

!!!!!!

 

[IDCHAPPY]

That's why we link to that video every time a DIY hero asks about unvented