Water Heater Efficiency Calculator

Water Heater Efficiency Calculator calculator can be used to calculate the efficiency of a water heater based on energy consumption, water usage, and temperature rise.

Input Parameters

Calculation Results

Calculation Formula

Efficiency (%) = (Energy Output / Energy Input) * 100

Where:
Energy Output = m * c * ΔT
m = mass of water (in kg)
c = specific heat capacity of water (4.186 J/g°C)
ΔT = temperature rise (°C)

Water Heater Efficiency Calculator Calculator Usage Guide

Learn how to use the Water Heater Efficiency Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the energy consumption of your water heater in kWh.
  2. Enter the amount of water usage in liters.
  3. Enter the initial temperature of the water in °C.
  4. Enter the final temperature of the water in °C.
  5. Click the "Calculate" button to compute the efficiency.
  6. The efficiency percentage will be displayed in the results section.

Understanding the Formula

The efficiency of the water heater is calculated using the formula:

Efficiency (%) = (Energy Output / Energy Input) * 100

Where:

  • Energy Output = m * c * ΔT
  • m = mass of water (in kg)
  • c = specific heat capacity of water (4.186 J/g°C)
  • ΔT = temperature rise (°C)
  • Energy Input = Energy Consumption (in kWh) * 3.6 (to convert kWh to kJ)