In article , Matt
writes
Has anyone heard or had experience of Oxyvent in Ireland?
This is spam right?

Ok, just in case it's not . . . .

Extravagant claims from mystical patented technology, walk away right
now!

For UFH wisdom look for, and I hate to say this, IMMs recent replies to
Big Wallop in the thread 'Mixing valves for UFH'
--
fred