Spirax Sarco is unveiling the Spirax EasiHeat DHW. This new heat exchanger incorporating S.I.M.S (Spirax Intelligent Monitoring System) technology is a compact, instantaneous heat transfer package. All of the components are sized to ensure accurate temperature control and responsiveness under all load conditions, says the company. The unit can deliver on demand a constant supply of hot water at a stable temperature for a full range of domestic and process hot water applications up to 350,000 Btuh, eliminating the need for large storage volumes.