EVRHEAT forced circulation heaters are designed and built with efficiency, versatility, and reliability in mind. Integrated controls and sensors monitor the status of the heater and send signals to an LED display to show current heater operation. At-a-glance, operators can see if the EVRHEAT is operating normally or needs service. Installation is simplified with a swivel inlet hose barb that moves 180° in either direction to accommodate plumbing in confined areas. Retrofiting the EVRHEAT into existing installations is quick and easy and operators looking to reduce their energy consumption of their standby generator heater can see up to 45% energy savings with EVRHEAT compared to standard thermosiphon heaters.