Espresso Machine - ROCKET Appartamento CopperAvailable in store only Rocket Appartamento HX Heat Exchanger E61 Espresso Machine, Copper The Rocket Appartamento features the very best from Rocket Espresso Company traditional production line yet in a smaller foot print and with few exterior upgrades. It includes E61 grouphead, steam pressure gauge and system layout similar to all Rocket Heat Exchanger Espresso Machines line. The 1. 8L Heat Exchange (HX) boiler technology allows you to brew coffee