Heat pump water heaters can help households reduce electricity costs and their impact on the environment. To ensure you get the most out of installing a heat pump water heater and avoid any potential problems, it's important to have an understanding of how to select a heat pump water heater and how it is best used in your specific circumstances.Whether you are considering buying a heat pump water heater, or you already have one, this guide is designed to help you gain a basic understanding of heat pump water heaters.