All Heatrae Megalife Indirect HE units are designed and manufactured to a very high quality using the latest manufacturing techniques. It boasts numerous innovative features designed to ensure high levels of operating efficiency. Megalife includes Heatrae Sadia's fast recovery 'coil in coil' heat exchanger. The inner container is manufactured from Duplex stainless steel and its immersion heater is tin-plated Superloy 825 making it ideal for use in aggressive water areas. Heatrae Megalife Cylinders are available to buy online at BHL. Features Transferable 25 year cylinder guarantee with on-site service support. Duplex stainless steel construction. No anode. Fast recovery coil. 40 metre (4 bar) maximum working head. Alloy sheathed immersion heaters. Immersion heater and safety cut-out designed to meet latest EU standards. Modern replacement for Cirrus & UDB cylinders. Ideal for use in aggressive water areas.