Review Rheem RTE 9 Electric Tankless Water Heater, 3 GPM

Rheem RTE 9 Electric Tankless Water Heater, 3 GPM

Includes 9 kW Electric Tankless Water Heater - RTE-9

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Rheem RTE 9 Electric Tankless Water Heater, 3 GPM Features

• On-unit temperature control
• LEDs indicate active element and standby mode
• Standard 1/2" water connection
• Rugged brass/copper heat exchanger
• Modulating power

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Rheem RTE 9 Electric Tankless Water Heater, 3 GPM

Customers say's :
Rated at 3 GPM but...
I purchased this Rheem RTE 9 to be used as a point of use water heater in my new bathroom in my "man cave". I also wanted to run hot water to a hose bib where I could use it for washing the dog, putting hot water in a 5 gal bucket, etc.

Don't be deceived by the 3 GPM rating. According to the "Use & Care Manual, with Installation Instructions for the Installer" provided with the unit you can only expect a 30 deg F rise in water temp at 3 GPM. My inlet water temp this time of year (January) is 48 Deg F. At 1.5 GPM I was only getting a 40 Deg F rise in temp. Yup, at half the rated flow I had 240 volts at 40 amps via two 40 amp breakers going in and only 98 deg F water out of the tap! Figured there must be something wrong. After reading the chart this is exactly what is to be expected.

I started to send it back then started figuring the costs. I spent $166 on this unit, $70 on 30 feet of 8 gauge 2 conductor wire, $8 on a double pole 40 amp breaker, and $65 on...

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Rheem RT9 Review
I was tired of hasteling my 4-gallon hot water heater in my forty foot RV, I mean 4-gallons of warm water makes for a real short shower especially when the winter ground water temperature that's replacing the hot water used from the tank is a freezing 40 degrees cooooold.

So I decided to go with an on demand tankless hot water heater and Rheems RTE9 40-amp breaker 3-gpm hot water heater fit my needs to a Tee.

Excellent Rapid delivery, over the phone they said three to five weeks, oh-well - the RTE9 arrived in five working days, perfect.

Installation, it took two to two and a-half hours to install. It took longer to drive to Lowe's and collect and buy the parts than it did to install the Rheem RTE9.

The Rheem RTE9 was quick and easy to install.

I screwed the RTE9 and an electrical junction box to the wall.

I plumbed the RTE9 into my RV's water lines with PTC (push to connect-connector pipe fittings) quick and easy...

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Great tankless water heater
I switched from a 60 gallon natural gas water heater to the Rheem RTE 9 electric tankless water heater. I was worried about it's ability to provide hot water for a family of 5 but so far I am very happy.
The response time for hot water is great, much faster than it was with the gas water heater. With the gas water heater it would take at least 30 seconds for the water to start feeling warm. With the Rheem water heater you start feeling the water warming up in 10 to 15 seconds and it's hot within 20 seconds.
As for showers and baths we have had no problems so far. Part of this might be due to our use of water saving shower heads and faucets the allow between 1 gallon per minute (gpm) to 1.5 gpm. The Rheem water heater is rated at 3 gpm and it's rare that someone is using more than one sink and the shower at the same time.
For less than $200.00, you really can't go wrong with the Rheem electric water heater. It probably took me as long to install the Rheem water heater...

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