Electric Tankless Water Heater Reviews

Tankless electric water heaters tend to be more energy efficient than their storage tank counterparts. Water heaters which utilize a holding tank may waste energy keeping a reservoir of water heated even when the water supply is not being used. Tankless systems provide a continuous flow of hot water on an on-demand basis, meaning that hot water is generated for the exact period of time that it is needed.

Particularly for individuals who travel, having a water heating system with a tank is impractical, as the unit works exactly the same even if the supply is not accessed for days. Tankless water heaters are also more compact and discreet in size, which is ideal for smaller homes.

While most tankless water heaters operate via propane or natural gas, there are some solid, economically efficient electric water heaters on the market today as well. Below, we will review some of the products which are rated most favorably in online electric tankless water heater reviews.

Rheem RTE 9 Electric Tankless Water Heater

Rheem RTE 9 Electric Tankless Water Heater

The Rheem RTE 9 has an easy to use temperature control built into the unit, as well as brass/copper heat exchanger to extend the durability of the product. The Rheem RTE stands out against other tankless electric water heater reviews both for its efficiency and reliability.

Energy star rated, this product is delivers a constant stream of hot water, up to five gallons per minute only when it is needed, and is particularly cost-effective when used in conjunction with point of use applications. Compared with gas water heating systems, many consumer reviews remarked upon the increased speed of the hot water delivery, meaning that they are able to access heated water within a few seconds rather than half a minute’s time.

Once purchasing the Rheem RTE 9, consumers can rest assured that they are covered in the unlikely event of a malfunction, as the parts are covered by a one year warranty. Provided that the product was installed by a qualified professional, the heat exchange system is also covered for ten years.

EcoSmart ECO 27 Electric Tankless Water Heater

EcoSmart ECO 27 Electric Tankless Water Heater

The EcoSmart Eco 27 has parts made out of copper and stainless steel, which helps to guard against corrosion, breakage and other damage. The system comes equipped with a digital temperature control which works degree by degree, allowing for the consumer to customize their water temperature to their own precise preference.

The EcoSmart Eco 27 operates via a patented self-modulating technology, and it is particularly useful for households located in colder climates, as it is able to effortlessly heat cooler incoming water temperatures while still ensuring a high enough flow rate to accommodate multiple sources of simultaneous use.

This product also comes with a lifetime warranty on the heater cost.

Stiebel Eltron Tempra 24 Plus Electric Tankless Whole House Water Heater

Stiebel Eltron Tempra 24 Plus Electric Tankless Whole House Water Heater

The Stibel Eltron Tempra 24 does not require any kind of external venting, and it comes equipped with an easy to use dial control which allows the consumer to personalize their water temperature.

Particularly desirable for larger households or families which frequently utilize multiple hot water sources at once, this product boasts advanced flow control, which means that the hot water supply remains consistent regardless of the amount being used at one time.

The Stibel Eltron Tempra 24 is also highly reliable, and as long as it is installed by a qualified professional, most damages or malfunctions are covered under the three-year limited warranty.


The majority of electric tankless water heater reviews available online focus upon the systems overall energy efficiency, yet it is also important to keep in mind the consumer’s needs when comparing and contrasting different products.

A couple in a smaller home who are rarely home during the work week will have far different needs than a family of five who needs to have two showers running alongside the dishwasher and washing machine on a regular basis. The above three products provide a nice range of reputable products which should appeal to nearly every potential consumer.