Vented and unvented s plan components

[PullerGas]

Unvented cylinders come with their own thermostats...


Note the use of the plural.

If you know the difference between the two, then you also know that you need to be certified to work on them, which in turn means that you should know that they come with their own controls.

What's the worst that can happen eh Dan

A reincarnation of Water Systems??!!! Ah I do miss him, endless fun & took the bait like a good yin!!

You've gotta remember Water Systems, Big Burner etc etc etc mate??