Abstract: An on-demand, closed-loop fluid heating system with a control system for providing fluid on-demand at consistent desired precise temperatures. The closed loop assembly may include a heating system, an air separation chamber with an air vent valve, a circulation pump, a small fluid accumulation tank, and plumbing forming the closed loop. Various sensors related to flow and temperature of fluids provide input to the combined feed forward and feed back temperature control system, such as a Programmable Logic Controller that precisely adjusts intermittently outgoing fluid temperature by immediately controlling the amount of heating to the fluid at precisely near usage temperature. Output from the control system can regulate various aspects of the system. A check valve in the closed loop between the system inlet and the system outlet avoids incoming fluid from being mixed with heated outlet fluid.

Abstract: An on-demand, closed-loop fluid heating system with a control system for providing fluid on-demand at consistent desired precise temperatures. The closed loop assembly may include a heating system, an air separation chamber with an air vent valve, a circulation pump, a small fluid accumulation tank, and plumbing forming the closed loop. Various sensors related to flow and temperature of fluids provide input to the combined feed forward and feed back temperature control system, such as a Programmable Logic Controller that precisely adjusts intermittently outgoing fluid temperature by immediately controlling the amount of heating to the fluid at precisely near usage temperature. Output from the control system can regulate various aspects of the system. A check valve in the closed loop between the system inlet and the system outlet avoids incoming fluid from being mixed with heated outlet fluid.