Glossary of terms
Domestic Hot Water (DHW)
Domestic hot water (DHW) refers to the hot water used in sinks, showers and baths in any type of building (not just domestic dwellings). As such, it is different from the hot water contained within heating pipe-work, although water for both purposes is often generated by the same system. Unlike water in heating systems, DHW is potable as people may consume it deliberately or accidentally during bathing / showering.« View all glossary terms