Merc Owner 2B
MB Enthusiast
Another vote for the glow worms... The house I'm in now had one when I moved in in 2000... I doubt it was new back then.
It's run near faultlessly (bar a thermocouple which cost less than £5 to replace) since then.
I have been looking for a new one though, purely for the increase in efficiency...
M.
I also have an old (yr 2000) GlowWorm. Despite having a new fan every 2-3 years and several thermocouples it's been relatively reliable. Not worth changing until it completely falls over.
However, the new ones don't deserve to be associated with these. Build quality is appalling and the electronics unreliable.
Has to be Vaillant now or if funds don't permit, Worcester.