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What is the most common Delta T rating for UK radiators?

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The most common Delta T rating for UK radiators is Delta T50, and it has become a legal requirement for hot water radiators and alternative heating devices to be tested versus this calculation in line with EN442 certifications.

Prior to 2013, Delta T60 was the leading rating within the heating industry until the previously mentioned legislation was introduced.

For further information on Delta T ratings and to discover why they can make such a difference to your home heating choices, take a look at our dedicated blog, Understanding your heating output – A guide to DELTA T radiator specs.