Rheem RTEX-13 13kW 240V Electric Tankless Water Heater
Community verdict
Based on 5 authentic user discussions, the Rheem RTEX-13 scores 6.2/10 with a mixed overall sentiment. Buyers appreciate its compact footprint and suitability for small, low-demand households with standard electrical panels. However, users frequently cite sudden power failures, heating element burnout, and strict minimum flow rate requirements (.3 GPM) as significant drawbacks.
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authentic reviews
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Community Verdict
A concise summary of what verified buyers of Rheem RTEX-13 13kW 240V Electric Tankless Water Heater consistently praise — and what they don’t.
Buyers love 4
- +Compact space saver
- +Good for small homes
- +Low electrical overhead
- +On-demand hot water
Keep in mind 4
- −Minimum flow activation needed
- −Element reliability issues
- −Power/amp constraints
- −Sudden power failures
What people are saying
4 quotesDirect organic buyer opinions about Rheem RTEX-13 13kW 240V Electric Tankless Water Heater, filtered for spam and ads.
The RTEX-13 has the same voltage as the TEMPRA 24. However, the main difference will be amp usage since the Rheem is 13kW.
When the hot water is turned on, the unit does not kick on and does not heat. The manual says the machine requires .3GPM to kick on.
One of the 9kW elements in our Rheem RTEX went out today. This is the second one to fail in two years...
It was working fine. Nothing happened, nothing changed, just...boom. No hot water. Display won't even come on.