Best Rheem Tankless Water Heater Reviews – 2017


"From industry-leading innovations to next-generation energy efficiencies, Rheem's been producing award-winning heating and cooling solutions for more than 65 years."

The Rheem brand actually began as a petroleum packaging company back in 1925. Since that time, it has developed into one of the largest manufacturers of HVAC systems and water heating equipment in North America.

It is now a worldwide company offering products in many countries, such as Australia, Canada, Mexico, Saudi Arabia, Ukraine, and New Zealand.

Anyone who is planning on installing or replacing a water heater may wish to consider tankless models from Rheem.

These water heaters provide continuous hot water, which avoids the problem of running out even for large families. Rheem offers both gas and electric tankless water heaters to suit any need.

Below, you will find reviews and information on four different propane and natural gas tankless water heater models that you could consider. Rheem tankless water heater reviews can help you make the right choice.

Rheem RTE 9 and RTE 13 

(Best Budget Rheem Tankless Water Heaters)

Rinnai RTE 13 review

If you're in a budget and still wants a Rheem,then I recommend choosing either the RTE 13 or RTE 9 depending on your hot water needs.

Both RTE 13 and RTE 9 models differs only in their capacities​.

RTE 9 comes with a 3 GPM flow rate with 9000 wattages whereas the RTE 13 offers 4 GPM flow rate with 13000 wattages.

They both are easy to use and are known to be highly energy efficient.​

If you're looking for a non-fussy inexpensive heater that'll still meet your hot water needs,you can stop your search here with either Rheem RTE 9 or RTE 13.

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Rheem RTG-84DVLN Low NOx Direct Vent 

Rheem RTG-84DVLN review

This 8.5 gallon water heater is designed to be both energy efficient and space-saving. Features include a UMC-117 remote control, 10 feet of thermostat wire, and a concentric vent system so that it does not require further ductwork to be laid within the home.

This is a direct vent indoor water heater that will take up very little space in a closet, and it features an integrated collector for condensation.

Dimensions include 14 by 10 by 26 inches, and the water heater weighs 54 pounds. It is Energy Star compliant and features a Rheem warranty. This is a gas water heater model ideal for larger families and homes and it is a low NOx type for the best in efficiency.

If you want a tankless water heater and you still prefer a higher capacity model that doesn't take up too much room, this could be the ideal option.

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Rheem RTGH review

This is two versions of the same model Rheem tankless water heater.

RTGH-95DVLN is designed to work with natural gas whereas RTH-95DVLP works with propane.

Each model includes a stainless steel heat exchanger.

The tankless water heaters feature electronic controls designed with intelligence modes to ensure the best in energy efficiency as well.

This tankless water heater is designed to offer hot water in larger homes and for bigger families while still remaining energy efficient and budget friendly.

The propane version of this model measures at 18.5 by 9.8 by 27.5 inches and it weighs 79 pounds.

The natural gas version measures at 18.5 by 9.8 by 27.5 inches and weighs 82 pounds.

Special features you can expect include 0.26 GPM minimum flow rate, an 9.5 gallon size, a self-diagnosing system to ensure it continues working properly, a built-in electric blower, and EZ-Link cable connections if more than one water heater is needed.

As far as capacity, this is one of the largest and best Rheem tankless water heater options available, ideal for the highest demand in large homes.

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 Rheem RTG-64XLN Outdoor Natural Gas


This model of tankless water heater is designed to be installed outdoors instead of inside the home.

It is a natural gas model that can provide up to 6.4 GPM, and it is low NOx for better energy efficiency. Included with this water heater is a UMC-117 remote control as well as 10 foot of thermostat wire for easier installation.

This is the first Rheem model to include next generation burner heating technology so that it can offer upgraded continuous hot water.

This Rheem water heater measures at 14 by 10 by 26 inches and it weighs 54 pounds. It is for outdoor use only. This is a lower capacity water heater, so it could be ideal for moderate-sized homes.

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 Rheem RTG-64XLP Outdoor Propane


The final option for tankless water heaters is a propane outdoor model that is also low NOx for energy efficiency. This model offers 6.4 GPM for continuous warm water in moderate to larger homes.

Features include a 35 degree rise, a UMC-117 remote control, thermostat wire for ease of installation, and a 6-unit manifold with the option for an MIC-6 manifold control board.

This Energy Star certified water heater measures at 14 by 10 by 26 inches and it weighs 54 pounds. It is for outdoor use only.

An EZ Link cable connection is included if you need to install more than one water heater. This is a smaller sized model and the best Rheem tankless water heater, ideal for moderate homes.

When choosing tankless water heaters from Rheem, one important thing to keep in mind is the size of the home and number of family members living within it. Propane and natural gas water heaters are energy efficient and ideal for larger homes. Smaller homes and families may be better suited with electric tankless water heaters.

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If you are interested in a gas tankless water heater, then one of the four mentioned above in the reviews could be the ideal option.

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