Aluminium radiators are fast becoming the most popular choice for radiators in the UK. They are not only visually superb with a vast choice of designer radiators and towel rails available to choose from, but more importantly they offer huge efficiency benefits.
Often referrred to as "Eco Radiators" aluminium radiators are very light, with very low water volume to size and outputt ratio.
This means that you will get better heat than from a similar size and shape alternative manufactured with other materials such as steel and stainless steel. Also though, due to the lower water volume within the radiator, your boiler will be working less for that heat.
A win, win all round then for Aluminium radiators and not too mention that these are fully 100% recyclable radiators to boot!