Designed and manufactured to meet New Zealand's energy performance standards, Rheem mains pressure electric water heaters are top performers under a wide range of water pressures and conditiions. They not only operate on mains pressure but are also suitable for unequal or equal low pressure uses. The electric storage water heaters can deliver more than 40 litres of hot water a minute, enough to meet the needs of most households. Due to their insulation qualities, the optimum water temperature is maintained longer, saving energy and ultimately saving on your water heating account.