Circulator Savings Calculator


Circulator Savings Calculator is a free tool for users to estimate energy savings and financial payback from efficient circulator pump selection. This calculator adds to the portfolio of tools, resources, and programs developed by HI to promote the use of more efficient pumps. The calculator utilizes data from HI’s public Energy Rating database,, in order to provide the most up-to-date savings calculations based on currently listed circulator models.

The Circulator Energy Savings Calculator estimates the energy savings for specific circulator pumps and domestic hot water recirculation pumps. Users have two options to calculate savings, with information from an HI Energy Rating Label or by entering size and control types. Users are also able to use defaults or customize aspects of the calculator, including operation hours to give the most accurate estimates.

Domestic Hot Water (DHW) Applications are also included for this calculator. The calculator provides savings from improved circulator pump efficiency as well as water heating savings from the use of run hour controls.

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Circulator Savings Calculator


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