--- title: "A. O. Smith vs Rheem: Which is searched more?" description: "Is A. O. Smith or Rheem more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Heat pump water heating brands set worldwide. 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/global-en/compare/ao-smith-vs-rheem" publisher: "Brandwave" --- # A. O. Smith vs Rheem: Which is searched more? Is A. O. Smith or Rheem more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Heat pump water heating brands set worldwide. 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**: A. O. Smith and Rheem - **Competitive set**: Heat pump water heating brands - **Market**: Global - **Month measured**: Sep 2026 - **A. O. Smith Share of Search**: 33.8% - **Rheem Share of Search**: 24.8% ## Is A. O. Smith or Rheem more popular in search? - In September 2026, A. O. Smith had more branded searches than Rheem among heat pump water heating brands worldwide. A. O. Smith had about 82,600 branded searches, while Rheem had 60,500. A. O. Smith made up 33.8% of all heat pump water heating brand searches we track, and Rheem accounted for 24.8%. - A. O. Smith was ahead of Rheem in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, A. O. Smith’s share of searches among heat pump water heating brands worldwide moved from 34.5% to 33.8%, and its estimated monthly branded searches moved from 101K to 82.6K. - Across the 12 months ending September 2026, Rheem’s share of searches among heat pump water heating brands worldwide moved from 25.3% to 24.8%, and its estimated monthly branded searches moved from 74K to 60.5K. ## Top heat pump water heating brands in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Rheem appeared in all five answers. A. O. Smith was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Rheem was listed before A. O. Smith in every answer. 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 | | --- | --- | --- | --- | --- | | Rheem | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | A. O. Smith | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | Bradford White | 3rd | 3 of 3 | 0 of 2 | 3 of 5 | | Stiebel Eltron | 4th | 1 of 3 | 0 of 2 | 1 of 5 | | SandenTherm | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about heat pump water heating brands - Asked ChatGPT "Which heat pump water heating brand should I buy?": 1. Rheem, 2. A. O. Smith, 3. Bradford White - Asked ChatGPT "What are the best heat pump water heating brands?": 1. Rheem, 2. A. O. Smith, 3. Bradford White, 4. Stiebel Eltron - Asked ChatGPT "What's the best heat pump water heating brand for efficient hot water?": 1. Rheem, 2. A. O. Smith, 3. Bradford White - Searched Google, AI Overview "heat pump water heater": 1. Rheem, 2. A. O. Smith - Searched Google, AI Overview "hot water heat pump": 1. Rheem Not named in any answer: SandenTherm. Brands are listed in the order each answer named them. The answers were collected in the United States on October 21, 2026. ## How did search popularity change for heat pump water heating brands worldwide in September 2026? - In September 2026, Stiebel Eltron overtook Rheem to rank 2nd among heat pump water heating brands worldwide, with 30.3% of the searches. - In September 2026, A. O. Smith gained share of searches among heat pump water heating brands worldwide, from 32.7% to 33.8%. - In September 2026, Rheem lost share of searches among heat pump water heating brands worldwide, from 29.3% to 24.8%. ## Month by month | Month | A. O. Smith estimated searches | A. O. Smith Share of Search | A. O. Smith rank | Rheem estimated searches | Rheem Share of Search | Rheem rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 101K | 34.5% | 1 | 74K | 25.3% | 3 | | Nov 2025 | 101K | 34.5% | 1 | 74K | 25.3% | 3 | | Dec 2025 | 110K | 38.6% | 1 | 74K | 26% | 2 | | Jan 2026 | 110K | 33.6% | 1 | 74K | 22.6% | 3 | | Feb 2026 | 90K | 32% | 2 | 74K | 26.3% | 3 | | Mar 2026 | 90K | 32% | 2 | 74K | 26.3% | 3 | | Apr 2026 | 82.6K | 32.1% | 1 | 74K | 28.7% | 2 | | May 2026 | 82.6K | 32.7% | 1 | 74K | 29.3% | 2 | | Jun 2026 | 82.6K | 32.7% | 1 | 74K | 29.3% | 2 | | Jul 2026 | 82.6K | 32.7% | 1 | 74K | 29.3% | 2 | | Aug 2026 | 82.6K | 32.7% | 1 | 74K | 29.3% | 2 | | Sep 2026 | 82.6K | 33.8% | 1 | 60.5K | 24.8% | 3 | ## How each brand is measured Brandwave collects information about searches that people make online using A. O. Smith’s and Rheem’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. - **A. O. Smith**: Measured on the search terms “a o smith” and “ao smith water heater”, summed into one figure. - **Rheem**: Measured on the search term “rheem”. - [A. O. Smith profile](/demand/global-en/brands/ao-smith) - [Rheem profile](/demand/global-en/brands/rheem) - [All heat pump water heating brands worldwide](/demand/global-en/categories/heat-pump-water-heating-brands): The set both shares are measured inside, 5 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 A. O. Smith or Rheem more popular in search? In September 2026, A. O. Smith had more branded searches than Rheem among heat pump water heating brands worldwide. A. O. Smith had about 82,600 branded searches, while Rheem had 60,500. A. O. Smith made up 33.8% of all heat pump water heating brand searches we track, and Rheem accounted for 24.8%. ## Cite this page Brandwave. "A. O. Smith vs Rheem: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/ao-smith-vs-rheem This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/ao-smith-vs-rheem. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.