Back Boilers

Quick overview of Back Boilers provided by the authority site – heating and hot water industry council in the UK
clipped from www.centralheating.co.uk

Back boilers (BBUs)


Under recent building regulations, an old back boiler in the fireplace area
should be replaced by a condensing or high efficiency boiler. Back boilers
are known as open flued models, which should, in most cases, no longer be
sold. The only exception is when it is either too complicated or expensive
to install a condensing boiler. In that case a back boiler can be fitted
providing it achieves a minimum 78% SEDBUK efficiency. SEDBUK stands for
Seasonal Efficiency of Domestic Boilers in the UK. Many customers faced with
this, tend to opt for a new condensing combination boiler which frees up the
fireplace to put in a more attractive gas fire, or simply leave it open.

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