Radiators - feature or not? Need long, low for hallway...

[another20]

What is the lowest, slimmest radiator size? I want something as least obtrusive for my hall way. Do you think just go with simple white - or make a feature of it?

We have put in a 30cm high one in our hallway. I am going to build a seat round it so it can't be seen. What btu do you need?

You can get skirting board radiators

Just an idea, we are going to put a vertical radiator (door shaped) in our hallway to go behind the front door when opened. That way it’s not taking up any useful space. We are choosing a flat panel design from Hudevad.