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A Greater Degree of Good

As a member of the Rheem® family of brands, EcoSmart® is a big part of Rheem Manufacturing’s commitment to taking a greater degree of responsibility for future generations—doing good by our customers, our people, our partners and our planet.

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Sharing the Warmth

We are evolving the way water is heated, creating solutions not only for better living and sustainability, but also supporting those who are building homes in smarter and more technologically advanced ways. Our goal is to produce top-of-the-line green energy products that are designed to exceed our customers’ needs while lowering the environmental impact.

EcoSmart® SmartBoost Tank Booster can be used to supplement an existing tank-type water heater’s supply for households with greater demands, keeping the original water heater from being sent to the landfill in favor of a larger-capacity model. Additionally, the SmartBoost increases the efficiency and performance of an existing gas or electric tank by 45%, and only uses power when the tank can’t keep up, helping to further save energy.

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EcoSmart® ECO 18 through ECO 36 tankless water heaters are equipped with EcoSmart self-modulating technology, so they only use energy when hot water is being delivered—meaning no more wasted hot water or energy. Best of all, they can help reduce energy usage—and heating costs—by up to 50%.

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The EcoSmart® point-of-use (POU) thermostatic series model numbers 4T and 6T tankless electric water heaters are small enough to install under a sink or a wet bar, delivering instantaneous hot water for safe and healthy handwashing.

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Tankless Stands Out

As a leader in sustainable, energy-efficient tankless water heaters, we make it easy to find the best of the best.

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An Environment of Innovation

Learn more about our products, designed to be friendly on the planet.

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Save Water & the Planet


The EcoSmart® ECOS line of tankless electric water heaters features stainless steel heat exchangers for increased durability.

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Increased Efficiency & Hot Water


SmartBoost increases the efficiency and performance of your existing gas or electric tank by 45%, giving it the power of a much larger tank.

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Save Water & Space


ECO MINI models eliminate the wait for hot water, saving water from being wasted down the drain while you wait for it to heat up.

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Working Hard to Save Energy While You Relax


The Smart POOL and Smart SPA series are energy-efficient in any ambient temperature.

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On-Demand Hot Water


The ECO ESH electrical hot shower heaters provide on-demand hot water and deactivate as soon as the water is turned off for energy savings.

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“Sustainability is an end-to-end thing. We have a responsibility to reduce energy consumption and waste during the manufacturing phase while offering consumers high-efficiency products that have a low impact on the planet.”

— Chris day


By 2025, we will launch a line of air and water products that boast a 50% reduction in greenhouse gas footprint.*

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*Rheem’s goal is to release by 2025 a line of heating, cooling, and water heating products that reduce greenhouse gas emissions by 50% as compared to products available in 2019. Reduction calculations will be based on the products’ use phase emissions only and utilize average emission factors to account for variability in electricity grids. Reduction calculations will not consider upstream or manufacturing impacts, but use phase emissions account for the majority of the products’ impact. At this time, these figures have not been independently verified by a third party.

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