Rheem RTEX-08 Professional Classic Electric Tankless Water Heater
Community verdict
The Rheem RTEX-08 is best suited as a compact, point-of-use water heater for single fixtures like kitchen sinks. Users appreciate its fast heating times, steady temperature holding, and accurate digital display. However, it struggles to supply high-flow applications like showers, particularly in cold climates, and some owners report issues with breaker tripping or sudden unit power failure.
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reviews collected
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authentic reviews
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Community Verdict
A concise summary of what verified buyers of Rheem RTEX-08 Professional Classic Electric Tankless Water Heater consistently praise — and what they don’t.
Buyers love 4
- +Compact point of use
- +Fast water heating
- +Accurate temperature display
- +Fits small spaces
Keep in mind 4
- −Low flow rate
- −Winter performance drop
- −Sudden failure risk
- −Breaker tripping potential
What people are saying
4 quotesDirect organic buyer opinions about Rheem RTEX-08 Professional Classic Electric Tankless Water Heater, filtered for spam and ads.
Raises temps about 60 degrees on avg in my experience with my faucet on full about 1 gpm.
The digital temperature display on the front is legit a real number, Hot water in a few seconds, it holds the setting on a ...
I installed an 8kw tankless under sink water heater (rheem rtex-08, 8/2 NM with 40 amp 2pole breaker ...
It was working fine. Nothing happened, nothing changed, just...boom. No hot water. Display won't even come on.