Incorporating S.I.M.S. technology, Spirax EasiHeat DHW delivers constant supply of hot water at stable temperature on demand, even with sudden wide load changes. Spirax Intelligent Monitoring System enables monitoring, diagnostics, and status communications. Information can be accessed remotely over Internet, through existing onsite communication systems, or through SMS text messaging/email. Via 7 in. touchscreen, users can visually access data detailing how and where energy is consumed.