The cost to run a heat pump water heater per month can vary depending on factors such as the size of the unit, the efficiency rating, the local electricity rates, and the hot water usage patterns in your household. On average, a heat pump water heater can cost anywhere between $20 to $50 per month to operate.

Heat pump water heaters are generally more energy-efficient compared to traditional electric water heaters, as they use the surrounding air to heat the water. This means that they consume less electricity, resulting in lower operating costs. However, it's important to note that the initial cost of purchasing a heat pump water heater may be higher than traditional models.

To get a more accurate estimate of the monthly operating cost for a specific heat pump water heater, you can check the energy efficiency rating provided by the manufacturer. This rating will typically indicate the estimated annual electricity consumption in kilowatt-hours (kWh). You can then divide this value by 12 to get an estimate of the monthly energy consumption. Finally, multiply this value by your local electricity rate per kWh to calculate the monthly cost.

It's also worth considering that best price in india  some utility companies offer rebates or incentives for purchasing and installing energy-efficient appliances like heat pump water heaters. These incentives can help offset the initial cost and reduce the overall operating expenses.