sm_jamieson wrote:
I have a rad in bathroom, 700mm wide, 600 high, 50mm deep. It has 26
water channels running vertically approx 15mm wide and 10mm deep,
spaced at 10mm, It has 40mm fins on the back, and the whole thing is in
a kind of open metal box with slots on the top.
Any idea what BTU this would be ?
I'm looking at replacements like towel radiators etc, but dont want
less heating capacity than I have.
Thanks,
Simon.

About 2300 BTU if it's a single panel.