In line with the demands of Building Regulations Part L, the Maxxflo stainless steel, high efficiency storage water heater has been introduced by Andrews Water Heaters. The Maxxflo range of condensing storage water heaters has tank options of 200 and 300 litres capacity and is available in eight sizes from 30 to 120 kW. Its high efficiency stainless steel heat exchangers - up to four depending on output - pre-mix modulating gas burners and stainless steel tank design allow the heater to generate hot water in condensing mode up to 80% of the tank volume.