--- title: "Heater and dehumidifier brands: Which are searched most?" description: "Compare the heater and dehumidifier brands people choose between. Share of Search among De'Longhi, Rinnai and Dimplex, the heater and dehumidifier brands Brandwave compares worldwide, 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/global-en/categories/heater-and-dehumidifier-brands" publisher: "Brandwave" --- # Heater and dehumidifier brands: Which are searched most? Compare the heater and dehumidifier brands people choose between. Share of Search among De'Longhi, Rinnai and Dimplex, the heater and dehumidifier brands Brandwave compares worldwide, 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**: Heater and dehumidifier brands - **Market**: Global - **Brands compared**: 3 - **Month measured**: Sep 2026 - **Highest Share of Search**: De'Longhi, 88.1% ## Which brand is most popular in search among heater and dehumidifier brands worldwide? - In September 2026, De'Longhi was the most searched among heater and dehumidifier brands worldwide, with an estimated 673K branded searches and 88.1% estimated Share of Search within this set. - Rinnai is in 2nd place, 80.1 percentage points behind at 7.9% Share of Search. - Across the 12 months ending September 2026, De'Longhi’s estimated Share of Search among heater and dehumidifier brands worldwide increased from 86.6% to 88.1%. - Across the 12 months ending September 2026, Dimplex’s estimated Share of Search among heater and dehumidifier brands worldwide decreased from 5.6% to 4%. - Across the 12 months ending September 2026, De'Longhi’s estimated Share of Search among heater and dehumidifier brands worldwide peaked at 89.7% in November 2025 and was lowest at 84.7% in January 2026. - Across the 12 months ending September 2026, Rinnai’s estimated Share of Search among heater and dehumidifier brands worldwide peaked at 9.6% in August 2026 and was lowest at 5.4% in November 2025. - Across the 12 months ending September 2026, Dimplex’s estimated Share of Search among heater and dehumidifier brands worldwide peaked at 6% in January 2026 and was lowest at 3.3% in August 2026. - Across the 12 months ending September 2026, Rinnai held steady: its estimated Share of Search among heater and dehumidifier brands worldwide moved less than 0.5 percentage points. ## Compare search popularity between leading brands - [De'Longhi vs Rinnai: compare search popularity](/demand/global-en/compare/delonghi-vs-rinnai): 88.1% against 7.9% Share of Search. - [De'Longhi vs Dimplex: compare search popularity](/demand/global-en/compare/delonghi-vs-dimplex): 88.1% against 4% Share of Search. - [Rinnai vs Dimplex: compare search popularity](/demand/global-en/compare/dimplex-vs-rinnai): 7.9% against 4% Share of Search. ## How did search popularity change for heater and dehumidifier brands worldwide in September 2026? - In September 2026, De'Longhi gained estimated Share of Search among heater and dehumidifier brands worldwide, from 87.1% to 88.1%. - In September 2026, Dimplex gained estimated Share of Search among heater and dehumidifier brands worldwide, from 3.3% to 4%. - In September 2026, Rinnai lost estimated Share of Search among heater and dehumidifier brands worldwide, from 9.6% to 7.9%. ## Share of Search ranking | Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by | | --- | --- | --- | --- | --- | --- | | 1 | De'Longhi | 88.1% | 673K | 0.0% | De'Longhi | | 2 | Rinnai | 7.9% | 60.5K | -18.2% | Rinnai | | 3 | Dimplex | 4% | 30.8K | +20.8% | Dimplex | ## Historical estimated branded-search demand | Month | Brand | Estimated monthly branded searches | Share of Search | Rank | | --- | --- | --- | --- | --- | | Oct 2025 | De'Longhi | 823K | 86.6% | 1 | | Oct 2025 | Rinnai | 74K | 7.8% | 2 | | Oct 2025 | Dimplex | 53.2K | 5.6% | 3 | | Nov 2025 | De'Longhi | 1.2M | 89.7% | 1 | | Nov 2025 | Rinnai | 74K | 5.4% | 2 | | Nov 2025 | Dimplex | 66.6K | 4.9% | 3 | | Dec 2025 | De'Longhi | 1M | 88.9% | 1 | | Dec 2025 | Rinnai | 74K | 6.6% | 2 | | Dec 2025 | Dimplex | 50.5K | 4.5% | 3 | | Jan 2026 | De'Longhi | 823K | 84.7% | 1 | | Jan 2026 | Rinnai | 90.5K | 9.3% | 2 | | Jan 2026 | Dimplex | 58K | 6% | 3 | | Feb 2026 | De'Longhi | 673K | 85.4% | 1 | | Feb 2026 | Rinnai | 74K | 9.4% | 2 | | Feb 2026 | Dimplex | 41.3K | 5.2% | 3 | | Mar 2026 | De'Longhi | 673K | 86.2% | 1 | | Mar 2026 | Rinnai | 74K | 9.5% | 2 | | Mar 2026 | Dimplex | 33.8K | 4.3% | 3 | | Apr 2026 | De'Longhi | 673K | 86.7% | 1 | | Apr 2026 | Rinnai | 74K | 9.5% | 2 | | Apr 2026 | Dimplex | 29.1K | 3.7% | 3 | | May 2026 | De'Longhi | 673K | 86.7% | 1 | | May 2026 | Rinnai | 74K | 9.5% | 2 | | May 2026 | Dimplex | 28.8K | 3.7% | 3 | | Jun 2026 | De'Longhi | 673K | 86.3% | 1 | | Jun 2026 | Rinnai | 74K | 9.5% | 2 | | Jun 2026 | Dimplex | 33.2K | 4.3% | 3 | | Jul 2026 | De'Longhi | 673K | 88% | 1 | | Jul 2026 | Rinnai | 60.5K | 7.9% | 2 | | Jul 2026 | Dimplex | 31.1K | 4.1% | 3 | | Aug 2026 | De'Longhi | 673K | 87.1% | 1 | | Aug 2026 | Rinnai | 74K | 9.6% | 2 | | Aug 2026 | Dimplex | 25.5K | 3.3% | 3 | | Sep 2026 | De'Longhi | 673K | 88.1% | 1 | | Sep 2026 | Rinnai | 60.5K | 7.9% | 2 | | Sep 2026 | Dimplex | 30.8K | 4% | 3 | ## What is being compared - **De'Longhi**: Measured on the search term “delonghi”. - **Dimplex**: Measured on the search terms “dimplex”, “dimplex dehumidifier”, “dimplex electric heater” and “dimplex heater”, summed into one figure. - **Rinnai**: Measured on the search term “rinnai”. - [De'Longhi](/demand/global-en/brands/delonghi) - [Dimplex](/demand/global-en/brands/dimplex) - [Rinnai](/demand/global-en/brands/rinnai) ## Methodology - [How is branded search demand 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 heater and dehumidifier brands worldwide? In September 2026, De'Longhi was the most searched among heater and dehumidifier brands worldwide, with an estimated 673K branded searches and 88.1% estimated Share of Search within this set. These are worldwide searches for English-language branded terms. ## Cite this page Brandwave. "Heater and dehumidifier brands: Which are searched most?". https://gobrandwave.com/demand/global-en/categories/heater-and-dehumidifier-brands This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/heater-and-dehumidifier-brands. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.