Ecosmart ECO 18 Electric Tankless Water Heater vs Rheem Performance 40 Gal. Electric Tank Water Heater

We couldn't find enough data on either product to be able to come to any reliable conclusions. We highly recommend that you take a look at some other options instead.

No sources that perform objective hands-on testing have deemed the Ecosmart ECO 18 Electric Tankless Water Heater worthy of being included in their Water Heater roundups, which typically isn't a good sign.

As for the Rheem Performance 40 Gal. Electric Tank Water Heater - it impressed reviewers at The Spruce, a trustworthy source that conducts solid hands-on testing. It did great in its "The 8 Best Water Heaters of 2023" roundup - in fact, it earned its "Best Budget, Electric" title, which, on its own, indicates a certain level of quality.

As a last step, we wanted to do a head-to-head Ecosmart ECO 18 Electric Tankless Water Heater vs. Rheem Performance 40 Gal. Electric Tank Water Heater comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.