Yes

There's a few plastic pieces on the inside of the lid and around the filter, but the water doesn't touch them while boiling, only when pouring. I don't know about BPA, but event if the plastic contains it, the contamination should be pretty minimal I think.

Good evening, according to the description, the inner material is also stainless steel. However, the raw material here is only 18/10 stainless steel and not the well-known INOX (18/0) and so it is not 100% dishwasher safe and generally tends to form slight rust.

It is made entirely of stainless steel and according to our information there should be no plastic parts inside that come into contact with water or steam.

I didn't measure it, but it's relatively short, about 50cm.

Yes, the limescale filter can be easily removed.