The HORNE SIH Steam Injection Heater is suitable for rapid heating of tanks, vats or other hot water vessels. It is 100% efficient: all of the energy in the steam (latent and real) is transferred into the water, thus raising its temperature. If required, several units can be connected to a single steam supply pipe. The HORNE SIH is a highly reliable unit manufactured entirely from stainless steel and, being a passive device, needs no maintenance. The very low levels of vibration produced by the HORNE SIH can greatly increase the lifespan of tanks and other fittings in the vicinity of the heater. A typical installation consists of one, or a series of SIH connected to a single steam supply and controlled by a Horne EA-1 steam control valve.