What are the best tankless water heaters?
AI Visibility Ranking
Brands ordered by GenRank score for this question.
DirectionalQuestion-level figures rest on at most 6 answers per brand, so treat them as direction, not a verdict; the category ranking is the number to judge by. Scores are for the week of 2026-11-08.
| Rank | Brand | Named by | Score |
|---|---|---|---|
| 1 | Stiebel Eltron Tempra 36 Plus | 4/6 | 43.8 |
| 2 | Navien NPE-240A2 | 3/6 | 36.6 |
| 3 | Rinnai | 3/6 | 34.0 |
| 4 | Stiebel Eltron Tempra 29 Plus | 2/6 | 28.9 |
| 5 | Rinnai RX/RXP199iN | 2/6 | 28.4 |
| 6 | Rheem | 3/6 | 28.4 |
| 7 | Rinnai RU199i | 1/6 | 28.0 |
| 8 | Navien | 2/6 | 23.2 |
| 9 | Rheem Performance Platinum 9.5 GPM | 1/6 | 21.5 |
| 10 | EcoSmart ECO 27 | 2/6 | 18.4 |
Sources these answers cited
The sites each surface's answer cited this week. The logos are the surfaces that cited the site.
| Source | Cited by |
|---|---|
| bobvila.comThe Best Tankless Water Heaters of 2026 - Bob Vila |   2 surfaces |
| plumbingsniper.comBest Tankless Water Heater 2026: Top 5 Picks from a Master Plumber |  2 surfaces |
| shopping.google.comshopping · Rheem Performance Platinum 9.5 GPM Natural Gas Super High Efficiency Indoor Smart Tankless Water Heater |  2 surfaces |
| tanklessgeek.comBest Tankless Water Heaters 2026: Buyer's Guide | 2 surfaces |
| thisoldhouse.comBest Tankless Water Heaters (2026) - This Old House | 2 surfaces |
| youtube.comsocial · Top 8 Tankless Water Heaters in 2026 | 2 surfaces |
| bestreviews.comBest Tankless Water Heaters of 2026 - BestReviews | 1 surfaces |
| bsesc.energy.govpublic · Tankless WHs Gas Fired | Building Science Education |  1 surfaces |
| causewayplumbingllc.comcausewayplumbingllc.com | 1 surfaces |
| consumerreports.orgSave Money with an Energy-Efficient Water Heater | 1 surfaces |
| emergencywaterheaterslc.comemergencywaterheaterslc.com | 1 surfaces |
| energy.govpublic · Energy Saver: Tips on Saving Money and Energy in Your Home | 1 surfaces |
15 more
Rank trend
Rank trends are drawn once two weekly editions under the same methodology exist. Only the first edition is in so far.