Billybob wrote
Vented systems, my word you are prehistoric, vented system sludge up, they ingress air and are unreliable
In your world they probably do.
You have answered your own argument, it only takes an inferior installation to make one dangerous,
And the fact that safety devices can fail through time. Did I mention that. OOps silly me.
this applies to vented or unvented,
A vented system has no requirement to have registered specialist installers installing them and no annual service. Thats a plus in my book.
Unvented does and the numptys and unregistered are installing them wholesale.
but the only ones I am aware of are vented systems that have been installed poorly that have become dangerous,
Cylinders and tanks. Yes I know , I have them in my home.
A heat bank would cure my problem though.
I am not aware of any unvented cylinders being dangerous through poor installation and neither are you,
They are numerous. An Australian couple were killed recently when the blast knocked the walls out and the concrete bison slabs fell on top of them. Very sad.
otherwise you would be able to point us in the direction of the proof, something that you and drivel have failed to do.
Its been happening through out the world for years and people end up injured or killed.