Rheem RTGH-95XLN Prestige Tankless Water Heater Review

Product Name:RTGH-95XLN Prestige
Power Source:Natural Gas
Use Type:Outdoor
Capacity:9.5 GPM
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The Quick Review

An extremely efficient and powerful outdoor tankless water heater, the Rheem RTGH-95XLN Prestige is one of the best options for outdoor water heaters. With an industry leading 9.5 GPM flow rate, the standard 10 year warranty and backed by a premium brand in water heaters, you definitely cannot go wrong with the Rheem RTGH-95XLN if it’s an outdoor tankless water heater you’re looking for.


With an industry leading 9.5 GPM flow rate, you will be able to heat up to 3 outputs at once. For example, you could heat two showers and a diswasher at the same time, or a washing machine, a dishwasher, a shower and a kitchen sink. That is basically all the hot water the average home would need.


Since this tankless water heater requires a gas line hook up, you will require professional installation. We do not recommend an amateur attempt to install this unit as working with gas lines can be very dangerous. That said, for a professional, this installation is quite straight forward and shouldn’t run up a large labor bill. Many individuals on Amazon has reported that they were able to install it themselves with ease.


If you are looking for long-term value with a trusted name and immediate energy savings by going tankless, the value in the Rheem RTGH-95XLN is clear. The Rheem models in general are also less expensive than the their Rinnai counter-parts, which is additional value given the similar quality between the two brands.

Over the long run, the extreme efficiency of this unit using natural gas will be much less expensive than electric hot water tanks.

The Misses

Most tankless water heaters take a while for the water to heat up when you turn on the faucets, and this unit is no exception. It can take up to 15 seconds (in the winter) for the water to heat up, which is slower than conventional electric water tanks. For a unit of this quality, we would expect them to innovate in this area.

The unit produces more noise than is to be expected as well, but since this an outdoor heater, this shouldn’t be much of a concern.

Our Recommendation

We definitely recommend this product for any house with up to 3 bathrooms and large appliances. Be sure to check the price to see if a discount is available today.

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