Will cheap designer radiators deliver an adequate BTU output?

What are BTUs and Watts?

How do I convert between BTUs and Watts?

Do different radiator designs affect heat output?

Are cast iron radiators better than steel?

How do I work out the BTU requirement of my radiator?

Do vertical radiators give out enough heat?

Will a heated towel rail heat my bathroom?

How do I calculate what size radiator I need for my conservatory?

Can I choose whether to have a horizontal or vertical radiator?

What radiators give off the most heat?

How do I choose the size of my radiator?