3.77
It still not clear, but they seem to be all the same hardware.
You can buy spare units and program them to be whatever grade you need.
Completely agree.
I guess it depends on what your calling CS2300-R.
Take your ebay example this shows a "CS2300-R" but the product part number is CS2412.
It doesn't seem easy to tell which products your vulnerabilities relate to from these CS numbers.
The negative posts are obviously from individual experience.
To each there own, not one panel will suit all installers for one reason or another.
Some of the positives you mention are negatives for others.
This is a fair point who wires plug tops to there new goods any more.
The difference I suppose is isolation and competence, plugged in equipment can be isolated easily and without being competent.
Arguments aside did you not get your answers to your three questions in post 2?
It's double NAT'ed by the sounds of things.
If this is the case there are a few ways to resolve.
Remove NAT from one device.
Correctly configure the NAT to stagger through the deivces.
Or worse case option is to DMZ the first NAT device (useful to check for double NAT)
If red is radiators then SW would not be facing windows from your diagram.
However, I did say that the plan doesn't help.
They cover 90 degree so it can be a waste in flat.
Facing away but across any windows would be best. Both to reduce the chance of sunlight issues and cover the potential break in points better.
Adjacent a radiator could be an issue whereas facing one on a wall opposite would be less so.
You could also fit DT's instead if there are concerns with FA's
The plan doesn't give the full picture but SW corners?