Can anyone recommend a very small radiator for a downstairs loo?

[CookieDoo]

Can anyone recommend a really tiny radiator for a downstairs loo? The old decrepit one that's in there currently is about 40cm x 48cm, and ideally I'd like something a bit smaller than that. It could even be a low level floor radiator, but all the ones I've seen are the best part of a meter long, which is way too big for the room unfortunately. Luckily the room doesn't get too cold so it doesn't need to throw out a huge amount of heat. I'm struggling to find something small enough that isn't a heated towel rail, which wouldn't be right for the room unfortunately. TIA!

Why not go for a ceiling light / heater combined?
https://www.oneclearwinner.co.uk/product/bathroom-ceiling-heater-light-combination/?campaign=b_oneclearwinneruk&gad_source=1&gad_campaignid=20333316188&gclid=EAIaIQobChMIgujA08vKkwMV_ZJQBh0GBzD8EAAYAiAAEgLN7_D_BwE

Could you do a tall vertical radiator? I was tearing my hair out trying to find a small enough radiator for my en-suite as it needed to be less than 40cm width, and stumbled across this tall design. Looks fab and pumps out some decent heat

Milano Windsor - Vertical Traditional Double Column Radiator - Choice of Metallic Colours and Sizes

I'm seeing multiple googling radiator 40x40.

https://amzn.eu/d/000bkQCN

https://www.plumbersmerchantsleicester.com/?i=849621&srsltid=AfmBOoqX4HedZ0l4zQ4rulHp_ViO7nqYQfA6eHkWWmDK2zENUKzFoLdDS7g
To start

Ideally you'd want one the same width so you can replace with no plumbing.

I have this tiny one from Amazon: https://www.amazon.co.uk/gp/aw/d/B07F6GFJM6?psc=1&ref=ppx_pop_mob_b_asin_title