--- title: "Rinnai vs Stiebel Eltron: Which is searched more in Australia?" description: "Is Rinnai or Stiebel Eltron more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Hot water system brands set in Australia. 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." canonical: "https://gobrandwave.com/demand/au/compare/rinnai-vs-stiebel-eltron" publisher: "Brandwave" --- # Rinnai vs Stiebel Eltron: Which is searched more in Australia? Is Rinnai or Stiebel Eltron more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Hot water system brands set in Australia. 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. ## Key facts - **Compared**: Rinnai and Stiebel Eltron - **Competitive set**: Hot water system brands - **Market**: Australia - **Month measured**: Sep 2026 - **Rinnai Share of Search**: 5.3% - **Stiebel Eltron Share of Search**: 10.1% ## Is Rinnai or Stiebel Eltron more popular in search? - In September 2026, Stiebel Eltron had more branded searches than Rinnai among hot water system brands in Australia. Stiebel Eltron had about 1,900 branded searches, while Rinnai had 1,000. Stiebel Eltron made up 10.1% of all hot water system brand searches we track, and Rinnai accounted for 5.3%. - The lead changed hands once in the 12 months ending September 2026: Stiebel Eltron took it in June 2026. - Across the 12 months ending September 2026, Rinnai’s share of searches among hot water system brands in Australia moved from 10% to 5.3%, and its estimated monthly branded searches moved from 2.4K to 1K. - Across the 12 months ending September 2026, Stiebel Eltron’s share of searches among hot water system brands in Australia moved from 7.9% to 10.1%, and its estimated monthly branded searches held steady at 1.9K. ## Top hot water system brands in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Rinnai was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Stiebel Eltron was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. Rinnai was listed before Stiebel Eltron in two out of three answers that named either. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | iStore | 1st | 3 of 3 | 1 of 2 | 4 of 5 | | Rheem | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | Reclaim Energy | 3rd | 2 of 3 | 0 of 2 | 2 of 5 | | Dux | 4th | 0 of 3 | 1 of 2 | 1 of 5 | | Rinnai | 5th | 1 of 3 | 1 of 2 | 2 of 5 | | Stiebel Eltron | 6th | 0 of 3 | 1 of 2 | 1 of 5 | | Aquamax | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | SandenTherm | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Thermann | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Apricus | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about hot water system brands - Asked ChatGPT "What's the best hot water system in Australia?": 1. iStore, 2. Reclaim Energy, 3. Rheem - Asked ChatGPT "Which heat pump hot water system should I buy?": 1. Reclaim Energy, 2. iStore, 3. Rheem - Asked ChatGPT "Is gas or electric hot water better, and which brand?": 1. iStore, 2. Rheem, 3. Rinnai - Searched Google, AI Overview "hot water system": 1. Dux, 2. Rheem, 3. Rinnai - Searched Google, AI Overview "heat pump hot water": 1. iStore, 2. Stiebel Eltron Not named in any answer: Aquamax, SandenTherm, Thermann and Apricus. Brands are listed in the order each answer named them. The answers were collected in Australia on October 27, 2026. ## How did search popularity change for Australia hot water system brands in September 2026? - In September 2026, Aquamax overtook Stiebel Eltron and 4 others to rank 5th among hot water system brands in Australia, with 10.1% of the searches. - In September 2026, Stiebel Eltron gained share of searches among hot water system brands in Australia, from 9.1% to 10.1%. - In September 2026, Rinnai lost share of searches among hot water system brands in Australia, from 6.2% to 5.3%. ## Month by month | Month | Rinnai estimated searches | Rinnai Share of Search | Rinnai rank | Stiebel Eltron estimated searches | Stiebel Eltron Share of Search | Stiebel Eltron rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 2.4K | 10% | 6 | 1.9K | 7.9% | 7 | | Nov 2025 | 2.4K | 10.3% | 6 | 1.9K | 8.2% | 7 | | Dec 2025 | 1.9K | 8.1% | 5 | 1.6K | 6.8% | 7 | | Jan 2026 | 1.9K | 8.8% | 6 | 1.6K | 7.4% | 7 | | Feb 2026 | 1.9K | 9.3% | 6 | 1.6K | 7.8% | 7 | | Mar 2026 | 1.9K | 8.6% | 6 | 1.9K | 8.6% | 7 | | Apr 2026 | 1.9K | 8.9% | 6 | 1.6K | 7.5% | 7 | | May 2026 | 1.9K | 9% | 5 | 1.9K | 9% | 6 | | Jun 2026 | 1.9K | 8.5% | 6 | 2.4K | 10.7% | 5 | | Jul 2026 | 1.6K | 8.2% | 6 | 1.9K | 9.8% | 5 | | Aug 2026 | 1.3K | 6.2% | 6 | 1.9K | 9.1% | 5 | | Sep 2026 | 1K | 5.3% | 7 | 1.9K | 10.1% | 6 | ## How each brand is measured Brandwave collects information about searches that people make online using Rinnai’s and Stiebel Eltron’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. - **Rinnai**: Measured on the search term “rinnai hot water”. - **Stiebel Eltron**: Measured on the search term “stiebel eltron hot water”. - [Rinnai profile](/demand/au/brands/rinnai) - [Stiebel Eltron profile](/demand/au/brands/stiebel-eltron) - [All hot water system brands in Australia](/demand/au/categories/au-hot-water-system-brands): The set both shares are measured inside, 10 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Rinnai or Stiebel Eltron more popular in search? In September 2026, Stiebel Eltron had more branded searches than Rinnai among hot water system brands in Australia. Stiebel Eltron had about 1,900 branded searches, while Rinnai had 1,000. Stiebel Eltron made up 10.1% of all hot water system brand searches we track, and Rinnai accounted for 5.3%. ## Cite this page Brandwave. "Rinnai vs Stiebel Eltron: Which is searched more in Australia?". https://gobrandwave.com/demand/au/compare/rinnai-vs-stiebel-eltron This page is also available as HTML at https://gobrandwave.com/demand/au/compare/rinnai-vs-stiebel-eltron. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.