--- title: "Hot water system brands in Australia: Which are searched most?" description: "Compare the gas, electric and heat pump hot water system brands Australian households choose between. Share of Search among Rheem, Dux, iStore, Reclaim Energy, Aquamax, Stiebel Eltron, Rinnai, SandenTherm, Thermann and Apricus, the hot water system brands Brandwave compares in Australia, using the same methodology, market, and reporting period. 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/categories/au-hot-water-system-brands" publisher: "Brandwave" --- # Hot water system brands in Australia: Which are searched most? Compare the gas, electric and heat pump hot water system brands Australian households choose between. Share of Search among Rheem, Dux, iStore, Reclaim Energy, Aquamax, Stiebel Eltron, Rinnai, SandenTherm, Thermann and Apricus, the hot water system brands Brandwave compares in Australia, using the same methodology, market, and reporting period. 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 - **Competitive set**: Hot water system brands - **Market**: Australia - **Brands compared**: 10 - **Month measured**: Sep 2026 - **Highest Share of Search**: Rheem, 22.3% ## Which brand is most popular in search among hot water system brands in Australia? - In September 2026, Rheem was the most searched among hot water system brands in Australia, with an estimated 4.2K branded searches, 22.3% of all searches for the ten we track. - Dux is in 2nd place, 1.5 percentage points behind at 20.7%. - Across the 12 months ending September 2026, Rheem’s share of searches among hot water system brands in Australia increased from 20.9% to 22.3%. - Across the 12 months ending September 2026, Dux’s share of searches among hot water system brands in Australia increased from 19.2% to 20.7%. - Across the 12 months ending September 2026, iStore’s share of searches among hot water system brands in Australia increased from 12.1% to 12.7%. - Across the 12 months ending September 2026, Reclaim Energy’s share of searches among hot water system brands in Australia increased from 10.4% to 11%. - Across the 12 months ending September 2026, Aquamax’s share of searches among hot water system brands in Australia increased from 1.1% to 10.1%. - Across the 12 months ending September 2026, Stiebel Eltron’s share of searches among hot water system brands in Australia increased from 7.9% to 10.1%. - Across the 12 months ending September 2026, Rinnai’s share of searches among hot water system brands in Australia decreased from 10% to 5.3%. - Across the 12 months ending September 2026, SandenTherm’s share of searches among hot water system brands in Australia decreased from 3.7% to 3.1%. - Across the 12 months ending September 2026, Apricus’ share of searches among hot water system brands in Australia decreased from 12.1% to 2.1%. - Across the 12 months ending September 2026, Rheem’s share of searches among hot water system brands in Australia peaked at 28.8% in May 2026 and was lowest at 17.3% in December 2025. - Across the 12 months ending September 2026, Dux’s share of searches among hot water system brands in Australia peaked at 31.8% in December 2025 and was lowest at 15.3% in March 2026. - Across the 12 months ending September 2026, iStore’s share of searches among hot water system brands in Australia peaked at 17.2% in August 2026 and was lowest at 8.1% in December 2025. - Across the 12 months ending September 2026, Reclaim Energy’s share of searches among hot water system brands in Australia peaked at 14.3% in August 2026 and was lowest at 7.2% in December 2025. - Across the 12 months ending September 2026, Aquamax’s share of searches among hot water system brands in Australia peaked at 10.1% in September 2026 and was lowest at 0.89% in December 2025. - Across the 12 months ending September 2026, Stiebel Eltron’s share of searches among hot water system brands in Australia peaked at 10.7% in June 2026 and was lowest at 6.8% in December 2025. - Across the 12 months ending September 2026, Rinnai’s share of searches among hot water system brands in Australia peaked at 10.3% in November 2025 and was lowest at 5.3% in September 2026. - Across the 12 months ending September 2026, SandenTherm’s share of searches among hot water system brands in Australia peaked at 4.1% in May 2026 and was lowest at 2.5% in December 2025. - Across the 12 months ending September 2026, Apricus’ share of searches among hot water system brands in Australia peaked at 20.4% in January 2026 and was lowest at 2.1% in September 2026. - Across the 12 months ending September 2026, iStore rose from 4th to 3rd among hot water system brands in Australia. - Across the 12 months ending September 2026, Reclaim Energy rose from 5th to 4th among hot water system brands in Australia. - Across the 12 months ending September 2026, Aquamax rose from 10th to 5th among hot water system brands in Australia. - Across the 12 months ending September 2026, Stiebel Eltron rose from 7th to 6th among hot water system brands in Australia. - Across the 12 months ending September 2026, Rinnai fell from 6th to 7th among hot water system brands in Australia. - Across the 12 months ending September 2026, Apricus fell from 3rd to 10th among hot water system brands in Australia. - Across the 12 months ending September 2026, Thermann held steady: its share of searches among hot water system brands in Australia moved less than 0.5 percentage points. ## Top hot water system brands in ChatGPT and Google AI Overviews In Brandwave's three ChatGPT questions and two Google AI Overviews, Rheem and iStore were mentioned most often, in four of the five answers. iStore was recommended most often, coming first in three out of five answers. Rheem was second, and Reclaim Energy was third. Aquamax, which ranked fifth in searches, was not mentioned at all. 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. ## Compare search popularity between leading brands - [Rheem vs Dux: compare search popularity](/demand/au/compare/dux-vs-rheem): 22.3% against 20.7% Share of Search. - [Rheem vs iStore: compare search popularity](/demand/au/compare/istore-vs-rheem): 22.3% against 12.7% Share of Search. - [Rheem vs Reclaim Energy: compare search popularity](/demand/au/compare/reclaim-energy-vs-rheem): 22.3% against 11% Share of Search. - [Rheem vs Aquamax: compare search popularity](/demand/au/compare/aquamax-vs-rheem): 22.3% against 10.1% Share of Search. - [Dux vs iStore: compare search popularity](/demand/au/compare/dux-vs-istore): 20.7% against 12.7% Share of Search. - [Dux vs Reclaim Energy: compare search popularity](/demand/au/compare/dux-vs-reclaim-energy): 20.7% against 11% Share of Search. - [Dux vs Aquamax: compare search popularity](/demand/au/compare/aquamax-vs-dux): 20.7% against 10.1% Share of Search. - [iStore vs Reclaim Energy: compare search popularity](/demand/au/compare/istore-vs-reclaim-energy): 12.7% against 11% Share of Search. - [iStore vs Aquamax: compare search popularity](/demand/au/compare/aquamax-vs-istore): 12.7% against 10.1% Share of Search. - [Reclaim Energy vs Aquamax: compare search popularity](/demand/au/compare/aquamax-vs-reclaim-energy): 11% against 10.1% Share of Search. ## 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, Dux gained share of searches among hot water system brands in Australia, from 18.1% to 20.7%. - 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, iStore lost share of searches among hot water system brands in Australia, from 17.2% to 12.7%. - In September 2026, Reclaim Energy lost share of searches among hot water system brands in Australia, from 14.3% to 11%. - In September 2026, Rheem lost share of searches among hot water system brands in Australia, from 24.5% to 22.3%. - In September 2026, Rinnai lost share of searches among hot water system brands in Australia, from 6.2% to 5.3%. - SandenTherm’s share of searches among hot water system brands in Australia has lost ground for 3 months in a row, from 3.9% to 3.1% in September 2026. ## Share of Search ranking | Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by | | --- | --- | --- | --- | --- | --- | | 1 | Rheem | 22.3% | 4.2K | -18.2% | Rheem | | 2 | Dux | 20.7% | 3.9K | +3.2% | Dux | | 3 | iStore | 12.7% | 2.4K | -33.3% | iStore | | 4 | Reclaim Energy | 11% | 2.1K | -30.4% | Reclaim Energy | | 5 | Aquamax | 10.1% | 1.9K | +387.2% | Aquamax | | 6 | Stiebel Eltron | 10.1% | 1.9K | 0.0% | Stiebel Eltron | | 7 | Rinnai | 5.3% | 1K | -23.1% | Rinnai | | 8 | SandenTherm | 3.1% | 590 | -18.1% | SandenTherm | | 9 | Thermann | 2.5% | 480 | -18.6% | Thermann | | 10 | Apricus | 2.1% | 390 | -18.8% | Apricus | ## Historical estimated branded-search demand | Month | Brand | Estimated monthly branded searches | Share of Search | Rank | | --- | --- | --- | --- | --- | | Oct 2025 | Rheem | 5K | 20.9% | 1 | | Oct 2025 | Dux | 4.6K | 19.2% | 2 | | Oct 2025 | Apricus | 2.9K | 12.1% | 3 | | Oct 2025 | iStore | 2.9K | 12.1% | 4 | | Oct 2025 | Reclaim Energy | 2.5K | 10.4% | 5 | | Oct 2025 | Rinnai | 2.4K | 10% | 6 | | Oct 2025 | Stiebel Eltron | 1.9K | 7.9% | 7 | | Oct 2025 | SandenTherm | 880 | 3.7% | 8 | | Oct 2025 | Thermann | 590 | 2.5% | 9 | | Oct 2025 | Aquamax | 260 | 1.1% | 10 | | Nov 2025 | Rheem | 5K | 21.5% | 1 | | Nov 2025 | Dux | 4.6K | 19.8% | 2 | | Nov 2025 | Apricus | 2.9K | 12.5% | 3 | | Nov 2025 | Reclaim Energy | 2.5K | 10.7% | 4 | | Nov 2025 | iStore | 2.4K | 10.3% | 5 | | Nov 2025 | Rinnai | 2.4K | 10.3% | 6 | | Nov 2025 | Stiebel Eltron | 1.9K | 8.2% | 7 | | Nov 2025 | SandenTherm | 720 | 3.1% | 8 | | Nov 2025 | Thermann | 590 | 2.5% | 9 | | Nov 2025 | Aquamax | 210 | 0.91% | 10 | | Dec 2025 | Dux | 7.5K | 31.8% | 1 | | Dec 2025 | Rheem | 4.1K | 17.3% | 2 | | Dec 2025 | Apricus | 3.6K | 15.3% | 3 | | Dec 2025 | iStore | 1.9K | 8.1% | 4 | | Dec 2025 | Rinnai | 1.9K | 8.1% | 5 | | Dec 2025 | Reclaim Energy | 1.7K | 7.2% | 6 | | Dec 2025 | Stiebel Eltron | 1.6K | 6.8% | 7 | | Dec 2025 | SandenTherm | 590 | 2.5% | 8 | | Dec 2025 | Thermann | 480 | 2% | 9 | | Dec 2025 | Aquamax | 210 | 0.89% | 10 | | Jan 2026 | Apricus | 4.4K | 20.4% | 1 | | Jan 2026 | Rheem | 4.1K | 18.9% | 2 | | Jan 2026 | Dux | 3.9K | 18.1% | 3 | | Jan 2026 | Reclaim Energy | 2.2K | 10.1% | 4 | | Jan 2026 | iStore | 1.9K | 8.8% | 5 | | Jan 2026 | Rinnai | 1.9K | 8.8% | 6 | | Jan 2026 | Stiebel Eltron | 1.6K | 7.4% | 7 | | Jan 2026 | SandenTherm | 720 | 3.3% | 8 | | Jan 2026 | Thermann | 590 | 2.7% | 9 | | Jan 2026 | Aquamax | 320 | 1.5% | 10 | | Feb 2026 | Rheem | 4.2K | 20.5% | 1 | | Feb 2026 | Dux | 3.8K | 18.5% | 2 | | Feb 2026 | Apricus | 2.9K | 14.2% | 3 | | Feb 2026 | iStore | 2.4K | 11.7% | 4 | | Feb 2026 | Reclaim Energy | 2.2K | 10.7% | 5 | | Feb 2026 | Rinnai | 1.9K | 9.3% | 6 | | Feb 2026 | Stiebel Eltron | 1.6K | 7.8% | 7 | | Feb 2026 | SandenTherm | 720 | 3.5% | 8 | | Feb 2026 | Thermann | 480 | 2.3% | 9 | | Feb 2026 | Aquamax | 320 | 1.6% | 10 | | Mar 2026 | Rheem | 5K | 22.5% | 1 | | Mar 2026 | Dux | 3.4K | 15.3% | 2 | | Mar 2026 | Apricus | 2.9K | 13.1% | 3 | | Mar 2026 | iStore | 2.9K | 13.1% | 4 | | Mar 2026 | Reclaim Energy | 2.5K | 11.2% | 5 | | Mar 2026 | Rinnai | 1.9K | 8.6% | 6 | | Mar 2026 | Stiebel Eltron | 1.9K | 8.6% | 7 | | Mar 2026 | SandenTherm | 720 | 3.2% | 8 | | Mar 2026 | Thermann | 590 | 2.7% | 9 | | Mar 2026 | Aquamax | 390 | 1.8% | 10 | | Apr 2026 | Rheem | 5K | 23.4% | 1 | | Apr 2026 | Dux | 3.4K | 15.9% | 2 | | Apr 2026 | iStore | 2.9K | 13.6% | 3 | | Apr 2026 | Apricus | 2.4K | 11.2% | 4 | | Apr 2026 | Reclaim Energy | 2.4K | 11.1% | 5 | | Apr 2026 | Rinnai | 1.9K | 8.9% | 6 | | Apr 2026 | Stiebel Eltron | 1.6K | 7.5% | 7 | | Apr 2026 | SandenTherm | 880 | 4.1% | 8 | | Apr 2026 | Thermann | 590 | 2.8% | 9 | | Apr 2026 | Aquamax | 320 | 1.5% | 10 | | May 2026 | Rheem | 6.1K | 28.8% | 1 | | May 2026 | Dux | 3.9K | 18.4% | 2 | | May 2026 | Reclaim Energy | 2.5K | 11.7% | 3 | | May 2026 | iStore | 2.4K | 11.3% | 4 | | May 2026 | Rinnai | 1.9K | 9% | 5 | | May 2026 | Stiebel Eltron | 1.9K | 9% | 6 | | May 2026 | SandenTherm | 880 | 4.1% | 7 | | May 2026 | Apricus | 720 | 3.4% | 8 | | May 2026 | Thermann | 590 | 2.8% | 9 | | May 2026 | Aquamax | 320 | 1.5% | 10 | | Jun 2026 | Rheem | 6.1K | 27.3% | 1 | | Jun 2026 | Dux | 3.8K | 16.9% | 2 | | Jun 2026 | Reclaim Energy | 3K | 13.3% | 3 | | Jun 2026 | iStore | 2.9K | 12.9% | 4 | | Jun 2026 | Stiebel Eltron | 2.4K | 10.7% | 5 | | Jun 2026 | Rinnai | 1.9K | 8.5% | 6 | | Jun 2026 | SandenTherm | 880 | 3.9% | 7 | | Jun 2026 | Thermann | 590 | 2.6% | 8 | | Jun 2026 | Apricus | 480 | 2.1% | 9 | | Jun 2026 | Aquamax | 390 | 1.7% | 10 | | Jul 2026 | Rheem | 5.1K | 26.3% | 1 | | Jul 2026 | Dux | 3.3K | 16.8% | 2 | | Jul 2026 | iStore | 2.9K | 14.9% | 3 | | Jul 2026 | Reclaim Energy | 2.5K | 12.8% | 4 | | Jul 2026 | Stiebel Eltron | 1.9K | 9.8% | 5 | | Jul 2026 | Rinnai | 1.6K | 8.2% | 6 | | Jul 2026 | SandenTherm | 720 | 3.7% | 7 | | Jul 2026 | Thermann | 590 | 3% | 8 | | Jul 2026 | Apricus | 480 | 2.5% | 9 | | Jul 2026 | Aquamax | 390 | 2% | 10 | | Aug 2026 | Rheem | 5.1K | 24.5% | 1 | | Aug 2026 | Dux | 3.8K | 18.1% | 2 | | Aug 2026 | iStore | 3.6K | 17.2% | 3 | | Aug 2026 | Reclaim Energy | 3K | 14.3% | 4 | | Aug 2026 | Stiebel Eltron | 1.9K | 9.1% | 5 | | Aug 2026 | Rinnai | 1.3K | 6.2% | 6 | | Aug 2026 | SandenTherm | 720 | 3.4% | 7 | | Aug 2026 | Thermann | 590 | 2.8% | 8 | | Aug 2026 | Apricus | 480 | 2.3% | 9 | | Aug 2026 | Aquamax | 390 | 1.9% | 10 | | Sep 2026 | Rheem | 4.2K | 22.3% | 1 | | Sep 2026 | Dux | 3.9K | 20.7% | 2 | | Sep 2026 | iStore | 2.4K | 12.7% | 3 | | Sep 2026 | Reclaim Energy | 2.1K | 11% | 4 | | Sep 2026 | Aquamax | 1.9K | 10.1% | 5 | | Sep 2026 | Stiebel Eltron | 1.9K | 10.1% | 6 | | Sep 2026 | Rinnai | 1K | 5.3% | 7 | | Sep 2026 | SandenTherm | 590 | 3.1% | 8 | | Sep 2026 | Thermann | 480 | 2.5% | 9 | | Sep 2026 | Apricus | 390 | 2.1% | 10 | ## What is being compared - **Apricus**: Measured on the search term “apricus”. - **Aquamax**: Measured on the search term “aquamax hot water”. - **Dux**: Measured on the search terms “dux” and “dux hot water”, summed into one figure. - **iStore**: Measured on the search term “istore heat pump”. - **Reclaim Energy**: Measured on the search terms “reclaim energy” and “reclaim heat pump”, summed into one figure. - **Rheem**: Measured on the search terms “rheem” and “rheem hot water”, summed into one figure. - **Rinnai**: Measured on the search term “rinnai hot water”. - **SandenTherm**: Measured on the search term “sanden heat pump”. - **Stiebel Eltron**: Measured on the search term “stiebel eltron hot water”. - **Thermann**: Measured on the search term “thermann”. - [Apricus](/demand/au/brands/apricus) - [Aquamax](/demand/au/brands/aquamax) - [Dux](/demand/au/brands/dux) - [iStore](/demand/au/brands/istore) - [Reclaim Energy](/demand/au/brands/reclaim-energy) - [Rheem](/demand/au/brands/rheem) - [Rinnai](/demand/au/brands/rinnai) - [SandenTherm](/demand/au/brands/sandentherm) - [Stiebel Eltron](/demand/au/brands/stiebel-eltron) - [Thermann](/demand/au/brands/thermann) ## 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 ### Which brand is most popular in search among hot water system brands in Australia? In September 2026, Rheem was the most searched among hot water system brands in Australia, with an estimated 4.2K branded searches, 22.3% of all searches for the ten we track. ## Cite this page Brandwave. "Hot water system brands in Australia: Which are searched most?". https://gobrandwave.com/demand/au/categories/au-hot-water-system-brands This page is also available as HTML at https://gobrandwave.com/demand/au/categories/au-hot-water-system-brands. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.