Heat Pump Water Heater Efficiency Calculator

Calculate heat pump water heater (HPWH) annual energy consumption, cost, and savings vs resistance electric. Model performance at different ambient temperatures.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)
σy — Normal Stress Y (MPa)
τxy — Shear Stress (MPa)
⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.
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How to Use

Enter the values for the patient or scenario you are assessing. Calculate heat pump water heater (HPWH) annual energy consumption, cost, and savings vs resistance electric. Model performance at different ambient temperatures. Use the hpwh efficiency result to inform your clinical assessment.

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Frequently Asked Questions