Hi guys, I'm as well in the UK in the process of selecting components to build an oven.
I too was attracted by the controleo3 (standard package no kit) so I've been researching a bit the power needed to make a proper one.
What I found out is that 2000W for 9l works ok and gives 95 to 100% score in the controleo3 test if the whole machine is well insulated.
The oven I'd like to get is a 10l 1000w oven on eBay, but I need to get it to at least 2000W
.
I've found on Aliexpress a pair of 500W 220V heating cartridges (stainless steel) for around 10 GBP, so I'd like to use them for a build instead of having to fit more quartz elements.
Do you happen to know if there is a particular reason to go full-quartz or should they be ok?
The controleo3 advanced kit does happen to contain one of these cartridges.
If too OT I'll delete the post.