Rheem RTEX-13 Professional Classic Electric Tankless Hot Water Heater
Community verdict
Based on 23 authentic reviews, the Rheem RTEX-13 scores a 7.2 out of 10. Users and plumbers consistently praise the brand's heating performance and fast customer support when handling warranty claims. However, buyers frequently caution that proper sizing is critical, as smaller electric tankless units struggle with high flow rates or simultaneous demands in larger homes.
26
reviews collected
23
authentic reviews
3
sponsored removed
0
AI content removed
What buyers agree on
Points that came up again and again across the authentic reviews.
- Compact space saving
- Hot water output
- Responsive warranty service
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Where to buy
Top 5 of 10 sellers · prices updated daily
| Seller | Condition | Offer | Price | Action |
|---|---|---|---|---|
| Rheem | new | Codes aren't guaranteed | — | Visit seller |
| Walmart | new | Codes aren't guaranteed | $265 | Visit seller |
| Miami Water HeaterCheapest | used | — | $185 | Visit seller |
| Home Depot | new | Codes aren't guaranteed | $247 | Visit seller |
| Wholesale Water Heaters | new | — | $235 | Visit seller |
Community Verdict
A concise summary of what verified buyers consistently praise — and what they don’t.
Buyers love 3
- +Compact space saving
- +Hot water output
- +Responsive warranty service
Keep in mind 3
- −Flow rate limitations
- −Requires proper sizing
- −Occasional error codes
What people are saying
4 quotesDirect organic buyer opinions filtered for spam and ads.
Just be aware of proper sizing for tankless water heaters... Not enough to fill a single bathtub...
Everything works great (REALLY hot water at our kitchen sink...), but for some reason the shower furthest...
I can tell you I would install a Rheem Pro hands down over all the rest.
24hours later brand new circuit board overnighted to me and hot water in time for the crazy low temps!
Frequently asked questions
Everything you need to know about Rheem RTEX-13 Professional Classic Electric Tankless Hot Water Heater before buying.
What do reviewers like about the Rheem Rheem RTEX-13 Professional Classic Electric Tankless Hot Water Heater?
Reviewers highlight: Compact space saving; Hot water output; Responsive warranty service.
What are the common complaints about the Rheem Rheem RTEX-13 Professional Classic Electric Tankless Hot Water Heater?
Common criticisms include: Flow rate limitations; Requires proper sizing; Occasional error codes.
Is the Rheem Rheem RTEX-13 Professional Classic Electric Tankless Hot Water Heater worth it?
Based on 26 authentic reviews across Reddit, YouTube, and social media, the Rheem Rheem RTEX-13 Professional Classic Electric Tankless Hot Water Heater scores 7.2/10 (mixed sentiment).