Why do chrome radiators have lower heat outputs?
The efficiency of the exchange of heat from a radiator to the air will vary depending on the make up of the radiators surface. Generally speaking, shiny finishes (such as chrome) do not emit heat as efficiently as coloured or matt finishes (emissivity). In addition, chrome plating creates an extra layer of metal that insulates the radiator and further reduces the heat output. Chrome plated radiators give out approximately 20% less heat than their white or coloured contemporaries. If you want a shiny chrome style radiator, but are struggling to find one with the required heat output, then look at polished stainless steel eg Zephyr or polished aluminium eg Style options.