Rheem vs Rinnai:Which is searched more?
In August 2026, Rheem and Rinnai were level on Share of Search among hot water brands worldwide, with an estimated 74K branded searches each, at 17.2% estimated Share of Search each. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Rheem or Rinnai?
Compare the hot water cylinder brands people buy. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for Rheem, Rinnai. The figures are in the table below the chart.
View monthly share of search table
| Month | Rheem | Rinnai |
|---|---|---|
| Oct 2025 | 16.6% | 16.6% |
| Nov 2025 | 18% | 18% |
| Dec 2025 | 18.8% | 18.8% |
| Jan 2026 | 16.5% | 20.2% |
| Feb 2026 | 19.4% | 19.4% |
| Mar 2026 | 18% | 18% |
| Apr 2026 | 18.8% | 18.8% |
| May 2026 | 18.8% | 18.8% |
| Jun 2026 | 19.5% | 15.9% |
| Jul 2026 | 19.5% | 15.9% |
| Aug 2026 | 17.2% | 17.2% |
| Sep 2026 | — | — |
How has the Rheem and Rinnai comparison changed over the last 12 months?
3 findings
- The lead changed hands once in the 11 months ending August 2026: Rheem took it in June 2026.
- Across the 11 months ending August 2026, Rheem’s estimated Share of Search among hot water brands worldwide moved from 16.6% to 17.2%, and its estimated monthly branded searches held steady at 74K.
- Across the 11 months ending August 2026, Rinnai’s estimated Share of Search among hot water brands worldwide moved from 16.6% to 17.2%, and its estimated monthly branded searches held steady at 74K.
How did search popularity change for hot water brands worldwide in August 2026?
2 changes
In August 2026, Rinnai overtook Stiebel Eltron to rank 3rd among hot water brands worldwide, at 17.2%.
In August 2026, Rheem lost estimated Share of Search among hot water brands worldwide, from 19.5% to 17.2%.
How each brand is measured
Brandwave collects information about searches that people make online using Rheem’s and Rinnai’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Put your own brand in this comparison
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