Condensing boilers for a loft conversion

The condensing boiler is the most efficient type available and is becoming the standard choice in most parts of the UK. Further to this, from 1 April 2005, all gas boilers installed in England and Wales are required to be condensing boilers (aside from a small number of exceptions).

Condensing boilers have larger heat exchangers than regular boilers, and achieve seasonal efficiencies of 86-91 per cent.The efficiency of a condensing boiler remains high even at a low level of output (for example, in summer when only providing hot water).

Where a new boiler is required to cope with the additional heat load of an extension, the improved efficiency of a condensing boiler (compared with a conventional model) may compensate for all or part of the extra demand.This results in little or no increase in fuel costs.