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Review: Rheem EcoSense 9.5 GPM Natural Gas Tankless Water Heater

Water Heater Review

Rheem is generally a well-known and trusted hot water heater brand. But customers seem to have mixed emotions about the EcoSense since it came on the scene in 2013. Tankless hot water heaters are catching on quickly throughout the US due to the money saving capabilities they offer, but many customers are still hesitant to give these tankless models a try.

Reviews are hard to come by on the internet for the Rheem EcoSense (but not impossible) so it seemed like the perfect model to discuss with local plumbers and Home Depot associates. This is a great tactic to keep in mind whenever you’re preparing to buy a new water heater. Talk to the experts if you’re unsure about anything regarding your hot water heater. Now, let’s take an in-depth look at the Rheem EcoSense and see if it could be the right tankless model for you.


Rheem claims that the EcoSense 9.5 GPM Natural Gas Tankless Water Heater is designed to provide hot water for up to three bathrooms at the same time. It heats water only when it’s needed and the EcoSense is Energy Star certified (0.94 energy factor). The EcoSense comes with a remote digital thermostat that can be installed almost anywhere in your home. Other features included with the $1,159.99 price tag include:

  • Horizontal 3 in. vent kit included
  • PVC venting for easy installation
  • No standing pilot
  • Intelligent electronic controls and sensors
  • Digital display that shows temperature and maintenance codes
  • Temperature range 85°F – 140°F

This tankless model weighs no more than 82 pounds, comes with a five year warranty, and is intended for indoor installation. Its compact size makes it suitable for most any place you wish to put it.


As stated before, since the Rheem EcoSense has only been on the market for a little over a year now, customers haven’t had a chance to voice opinions regarding long term reliability and other important factors that play into deciding whether this tankless model is truly worth the nearly $1,200 investment.

Those who have purchased the model boast that it never seems to run out of hot water despite its size, claiming the supply is “practically endless.” Customers also seem to appreciate the positive effect the Rheem EcoSense has on their electric bills.


With these pros also comes a list of cons. While some customers claim the Rheem EcoSense Natural Gas Hot Water Heater provides an endless supply of hot water, others are saying the heater takes a long time to get the water hot and the wait times between showers in the household if you want a hot one is ridiculous.

Other common complaints include a missing internal pipe clip (a crucial part of the unit), malfunctioning, unit leaks, and poor customer service when something does go wrong.


The Rheem EcoSense 9.5 GPM Natural Gas Tankless Water Heater looks good on paper, but when it comes to people who have had actual experience with the unit, it seems as though you’ve got about a 50/50 chance of winding up with a good unit. Given the price tag, if you’re going to spend that much money on a tankless hot water heater, go with a model that you’ll be aware of exactly what you’re getting.

For more information about this model click here.