--- title: How Do Tankless Water Heaters Work with Water Ejectors? | Baelz NA description: Learn how tankless water heaters work with water ejectors to boost efficiency, reduce costs, and provide reliable, on-demand hot water for any application. --- ![Exit](https://info.baelzna.com/hubfs/img/ico-exit.svg) - [Data Sheets](https://info.baelzna.com/lp-datasheets-manuals-download) - [Product Brochure](https://info.baelzna.com/lp-company-brochure) - [Blog](https://info.baelzna.com/blog) - [Services](https://baelzna.com/services/) - [Industries](https://baelzna.com/industries/) - [Catalog](https://catalog.baelzna.com/category/all-categories) [+1 844-223-5962 (toll free)](tel:+18442235962) [Sign In to Purchase](https://cart.thomasnet-navigator.com/Login/account/signin?ReturnUrl=%2fLogin%2fissue%2fwsfed%3fwa%3dwsignin1.0%26wtrealm%3dhttp%253a%252f%252fcnsso.thomasnet-navigator.com%252fadfs%252fservices%252ftrust%26wctx%3dRPUrl%253dhttps%25253a%25252f%25252fcart.thomasnet-navigator.com%25252fsso%25252f%255cBaseUrl%253dhttp%25253a%25252f%25252fcnsso.thomasnet-navigator.com%25252fadfs%25252fservices%25252ftrust%255cProtocolID%253dwsfed%255cId%253did-73efa8e7-be78-47fd-a8d0-2d77535575e8%255cwtrealm%253dhttps%25253a%25252f%25252fcart.thomasnet-navigator.com%25252fsso%25252f%255cwctx%253dhttp%25253a%25252f%25252fbaelzna.thomasnet-navigator.com%25252f%25253ftoken%25253dCB50tBlyq1Hu9IRdLRgYXLmsDA-GyfhS0RQDdsaxpUQ%25252c&wa=wsignin1.0&wtrealm=http%3a%2f%2fcnsso.thomasnet-navigator.com%2fadfs%2fservices%2ftrust&wctx=RPUrl%3dhttps%253a%252f%252fcart.thomasnet-navigator.com%252fsso%252f%5cBaseUrl%3dhttp%253a%252f%252fcnsso.thomasnet-navigator.com%252fadfs%252fservices%252ftrust%5cProtocolID%3dwsfed%5cId%3did-73efa8e7-be78-47fd-a8d0-2d77535575e8%5cwtrealm%3dhttps%253a%252f%252fcart.thomasnet-navigator.com%252fsso%252f%5cwctx%3dhttp%253a%252f%252fbaelzna.thomasnet-navigator.com%252f%253ftoken%253dCB50tBlyq1Hu9IRdLRgYXLmsDA-GyfhS0RQDdsaxpUQ%252c) [![Baelz NA logo](https://info.baelzna.com/hubfs/img/baelz-automatic-onblk-logo.png "Baelz NA logo")North America](https://baelzna.com) [Menu](https://info.baelzna.com/blog/how-do-tankless-water-heaters-work-with-water-ejectors#menu)[+1 844-223-5962](tel:+18442235962) Close - 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Posted by [Baelz North America](https://info.baelzna.com/blog/author/baelz-north-america) | Jul 7, 2025, 12:00:00 AM [0 Comments](https://info.baelzna.com/blog/how-do-tankless-water-heaters-work-with-water-ejectors#comments-listing) - [Tweet](https://twitter.com/share) [![How Do Tankless Water Heaters Work with Water Ejectors?](https://info.baelzna.com/hs-fs/hubfs/Baelz-hydrodynamic%C2%AE-Hot-Water-Terminal-Tankless-Water-Heater.png?width=400&name=Baelz-hydrodynamic%C2%AE-Hot-Water-Terminal-Tankless-Water-Heater.png "How Do Tankless Water Heaters Work with Water Ejectors?")](https://info.baelzna.com/hubfs/Baelz-hydrodynamic%C2%AE-Hot-Water-Terminal-Tankless-Water-Heater.png) [Tankless water heaters](https://baelzna.com/applications/tankless-water-heaters/), also referred to as on-demand water heaters, are compact, wall-mounted systems that heat water only when required. Unlike traditional tank-style models that store a reserve of hot water, tankless units activate when water flow is detected. This helps to reduce energy loss while minimizing space requirements. When paired with [water ejectors](https://baelzna.com/products/ejectors/water-ejectors/), tankless water heaters can deliver even greater efficiency, performance, and reliability for applications ranging from residential plumbing to industrial process systems. At Baelz North America, we provide controlled water ejector technology to help optimize your tankless water heater system. Our solutions support long-term performance and reduce operating costs. Below, we’ll explain how tankless water heaters work and explore the benefits of water ejectors in these systems. ## Components of Tankless Water Heaters Understanding how tankless water heaters work begins with their on-demand operation. Instead of storing hot water, the system activates when it detects water movement from an open tap. As water begins to flow through the system, several key components engage to heat the water quickly and efficiently: - **Flow Sensor.** The flow sensor detects when water enters the system and ensures that there is sufficient flow to trigger heating. It also helps regulate how much water moves through the heater to prevent overload. - **Heat Exchanger.** Once activated, the heat exchanger transfers energy from an electric element or gas burner to the water as it passes through. This component holds a small amount of water to enable quick thermal transfer. - **A Temperature Sensor.** The temperature sensor monitors the heated water and adjusts valves to maintain the desired temperature. It ensures consistency and prevents overheating or underheating. - **Control Panel.** A control panel allows users to set water temperature and access diagnostics. This enhances usability and helps with system monitoring and troubleshooting. - **Water Ejector.** Also known as jet pumps or ejector pumps, water ejectors are specialized three-way valves that use the principles of pressure and flow dynamics. In tankless water heaters, water ejectors convert the water pressure of the motive fluid into velocity energy, creating a vacuum with a suction effect that draws water through the system for discharge. This design makes tankless water heaters highly efficient in delivering hot water, particularly in industrial settings. ## Benefits of Water Ejectors in Tankless Water Heaters Incorporating ejectors into a tankless water heater system provides several key benefits: ### Lower Maintenance With fewer mechanical components to fail, ejectors require less frequent maintenance than traditional pumps. Their simple design also means fewer service interruptions and lower repair costs. ### Cost Savings Ejector systems tend to cost less than mechanical alternatives, both in terms of initial investment and total lifecycle costs. Their reliability and efficiency translate into reduced utility bills, fewer unplanned expenses, and reduced downtime. ### Energy Efficiency Ejectors harness existing water pressure to drive system performance. This reduces the need for external energy input and minimizes wasteful circulation. ### Long-Lasting Performance Conventional water heaters have a shorter lifespan of about 10 to 15 years. Alternatively, tankless systems with water ejectors typically last twice as long and require less maintenance. Tankless models also won’t run out of hot water, which is always a risk with storage tank models. ## Source Water Ejectors From Baelz North America At Baelz North America, we specialize in delivering cost-effective, energy-saving parts and systems designed for process heating and cooling applications. Our controlled water ejectors improve efficiency and provide reliable operation for tankless water heaters. By incorporating our water ejector technology, you can enhance water heater performance and longevity while reducing operational costs. For more information about our water ejector products, [contact us](https://info.baelzna.com/lp-contact) or [request a quote](https://info.baelzna.com/lp-request-a-quote) today. 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