How much can you save by using an on-demand hot water system vs always on recirculation pumps
Hot Water Recirculation System White Paper Energy and Water Cost Calculations for On-Demand Hot Water - Smart Recirculation Control - David Lehrian - Leridian Dynamics, Inc.
Water and Energy Savings Calculations for on-demand hot water recirculation pump controllers. How much can you save using Smart Recirculation Control from Leridian Dynamics, Inc.
The following white paper was prepared for Gas Technology Institute Emerging Technology Program and discusses the benefits of an on demand recirculation control system in multi family buildings and the shortcomings of a timer based, thermostat based or uncontrolled recirculating hot water system. The principals are easily applied to single family homes as well. Smart Recirculation Control is a demand based control solution that solves the problems outlined in this white paper.