Semi-storage calorifiers provide a unique solution for installations requiring high-peak demands with limited plantroom space. The Ormandy Evolution Semi-Storage Calorifier has been designed to meet this demanding criteria with special consideration to DEO and HTM 2027 specifications. Generally the required storage volume is only a quarter of an equivalent one hour recovery storage calorifier. Evolution Semi-Storage Calorifiers are frequently designed to meet specific site requirements – please contact our sales department for additional information.
Evolution Semi-Storage Calorifiers consist of a constant flow, multi-pass heat exchanger coupled in parallel with a buffer storage vessel. Irrespective of the demand placed upon the Evolution the outlet temperature from the heat exchanger remains constant. An integral bronze pump sized to meet the desired output maintains constant flow through the exchanger.