5 Best Booster For Water Heaters 2025 in the United States

The Eemax HATB007240 Tank Water Heater Booster is a solid choice for those looking to enhance their existing water heater's performance. With a power rating of 7.2 kW and operating at 240 volts, it’s capable of increasing the deliverable hot water by up to 45%, making it ideal for households that experience high demand for hot water. The unit boasts a maximum flow rate of 5 gallons per minute, ensuring a steady supply of hot water for most domestic needs. Its ability to maintain temperature accuracy within +/- 1 degree F is a notable feature, providing consistent and reliable performance.

This booster is compatible with both new and existing tank water heaters, and its compact design with zero clearance requirements makes it easy to install in tight spaces. The digital user interface and external controls allow for straightforward adjustments to settings, enhancing user convenience. Additionally, the field replaceable element is a practical feature that simplifies maintenance. Safety-wise, the unit is ETL certified, which adds a layer of assurance regarding its compliance with safety standards.

However, there are a few drawbacks to consider. While the power rating is robust, it may lead to higher electricity consumption, which could affect utility bills. The installation, though marketed as easy, might still require professional help, especially for those unfamiliar with electrical systems. Also, the product has been available since 2016, so it might lack some of the newer technological advancements found in more recent models. This water heater booster would be particularly beneficial for medium to large households looking to extend the efficiency and capacity of their current water heating system.

The Hatco C-15-208-3-QS Booster Heater is designed for commercial use, particularly where hot water is essential, such as in kitchens or restaurants. With a power rating of 15kW, it delivers efficient heating, making it suitable for high-demand environments. Its flow rate and temperature rise capabilities are significant, allowing it to quickly elevate water temperatures to meet safety and sanitation standards. This product is compatible with 208V electric systems, which is common in many industrial settings.

One of the standout features is the manufacturer's one-year parts and labor warranty, giving users peace of mind regarding reliability and support. The heater is designed for floor mounting, making installation straightforward for professionals; however, it may require an electrician for proper setup, which could add to the installation cost.

The unit’s weight of 120 pounds is on the heavier side, which might pose challenges during installation for some users. It's essential to ensure adequate space is available for both installation and maintenance. Safety features also play a crucial role, as this booster heater is constructed with safety in mind.

The Hatco C-15-208-3-QS Booster Heater is a robust choice for those needing a reliable hot water solution in commercial settings. It combines efficiency and ease of use but may require professional installation and is somewhat heavy, which users should consider before purchasing.

The Cash Acme 3/4 Inch Tank Booster Water Heater with Thermostatic Mixing Valve (TMV) is designed to enhance the performance of your water heater. One of its strengths includes the ability to mix hot water with cold to maintain a controlled temperature, which is crucial for safety and comfort. It can be used with various types of water heaters, including gas, electric, and tankless, making it quite versatile.

The booster helps prevent scalding by maintaining water temperature at a safe level of 120°F, which can be adjusted up to 140°F if desired. This is particularly beneficial for households with children or elderly members who are more susceptible to burns from hot water. Installation is user-friendly due to its push-to-connect technology, eliminating the need for soldering or adhesives, which can save time and effort during setup. This makes it suitable for both residential and commercial applications.

Additionally, the valve is made from durable, lead-free DZR brass, ensuring longevity and safety. Certified under multiple standards, it meets safety and performance criteria, providing peace of mind to users. The Cash Acme Tank Booster offers reliable performance, easy installation, and essential safety features, making it a solid choice for improving your water heater's efficiency and safety in both domestic and commercial settings.