"14in Incoly Immersion Heater Element Too early to say how good this is. It's an immersion. It heats water. This one is for stainless cylinders blah blah blah are you bored now? Look it's cheap, it works buy it if you want or wait about 5 years when I can really report on it."
"What can I say, it was easy to install and wire, as usual the washer failed to seal and I had a weep for the first day or so but totally water tight now. It heats the water and the thermostat cuts in and out, I can't really rate it for reliability as it has only been in service a few weeks and is anyway used as a boost unit."