Water Immersion Heaters

Water Immersion Heaters

Water immersion heaters are designed to heat water in tanks, reservoirs, process vessels, and equipment where direct electrical heating is required. They may be configured as flanged, screw plug, over-the-side, or purpose-built assemblies depending on the tank and installation. The element sheath and watt density must suit water chemistry, temperature, circulation, and the tendency for scale formation. Hard water can deposit minerals on the sheath, increasing its surface temperature and reducing heat transfer; periodic inspection or water-treatment measures may therefore be important in demanding installations. For safe operation, the system should consider minimum water level, over-temperature protection, earthing, suitable electrical enclosures, and control sensor placement. Industrial water heaters can be sized for batch heat-up or continuous duty, but accurate selection requires the volume, incoming water temperature, required final temperature, and desired heat-up time.