Before you invest in an online radiator, you need to work out which one is the best fit for your space.  Factors like Output BTUs and Delta T carry concrete significance in the process of picking up the perfect size and heat output. 

Radiators sellers in the UK market, mark radiator output in terms of Delta T. Delta T or ΔT is the difference between water temperature in a radiator(T1) and the temperature of the room that is being heated (T2).

Mathematically, ΔT= T2-T1

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