De'Longhi vs Stiebel Eltron:Which is more popular?
In September 2026, De'Longhi had more branded searches than Stiebel Eltron among panel heater brands worldwide. De'Longhi had about 673,000 branded searches, while Stiebel Eltron had 74,000. De'Longhi made up 79.5% of all panel heater brand searches we track, and Stiebel Eltron accounted for 8.7%. When we asked ChatGPT and Google AI Overviews about panel heater brands, De'Longhi appeared in four of the five answers and Stiebel Eltron in two. Stiebel Eltron was mentioned before De'Longhi in two out of three answers.
Who do people search for more?
De'Longhi, about 9 searches for every 1 for Stiebel Eltron
Who does AI mention more?
De'Longhi, mentioned in 4 of 5 answers, Stiebel Eltron in 2
Who does AI recommend more?
Stiebel Eltron, named ahead of De'Longhi in 2 of 3 answers
Follow De'Longhi vs Stiebel Eltron and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
Top panel heater brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, De'Longhi was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Stiebel Eltron was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Stiebel Eltron was listed before De'Longhi in two out of three answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- De'Longhi4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Stiebel Eltron2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Dimplex1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
ENVI1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Rinnai0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Goldair0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about panel heater brands
5 answers
Asked ChatGPT
“Which panel heater brand should I go to?”
Asked ChatGPT
“What are the best panel heater brands?”
Asked ChatGPT
“What's the best panel heater brand for a small room?”
Searched Google, AI Overview
“best panel heater”
Searched Google, AI Overview
“panel heater for bedroom”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is De'Longhi or Stiebel Eltron more popular in search?
This chart shows how often people search Google for De'Longhi and Stiebel Eltron by name. Each line represents a brand's share of searches for all six panel heater brands we track, month by month, from English-language searches worldwide.
Share of searches by month for De'Longhi, Stiebel Eltron. The figures are in the table below the chart.
View monthly share of searches table
| Month | De'Longhi | Stiebel Eltron | Rinnai | Dimplex | Goldair | ENVI |
|---|---|---|---|---|---|---|
| Oct 2025 | 78.3% | 8.6% | 7% | 5.1% | 0.63% | 0.42% |
| Nov 2025 | 83.4% | 6.2% | 5.1% | 4.6% | 0.45% | 0.37% |
| Dec 2025 | 82.6% | 6.1% | 6.1% | 4.2% | 0.55% | 0.46% |
| Jan 2026 | 75.1% | 10% | 8.3% | 5.3% | 0.74% | 0.52% |
| Feb 2026 | 75.8% | 10.2% | 8.3% | 4.6% | 0.74% | 0.34% |
| Mar 2026 | 76.5% | 10.3% | 8.4% | 3.8% | 0.75% | 0.21% |
| Apr 2026 | 78.4% | 8.6% | 8.6% | 3.4% | 0.77% | 0.22% |
| May 2026 | 78.4% | 8.6% | 8.6% | 3.4% | 0.77% | 0.27% |
| Jun 2026 | 78.1% | 8.6% | 8.6% | 3.9% | 0.77% | 0.14% |
| Jul 2026 | 79.4% | 8.7% | 7.1% | 3.7% | 0.96% | 0.12% |
| Aug 2026 | 78.8% | 8.7% | 8.7% | 3% | 0.77% | 0.12% |
| Sep 2026 | 79.5% | 8.7% | 7.2% | 3.6% | 0.64% | 0.29% |
How has the De'Longhi and Stiebel Eltron comparison changed over the last 12 months?
3 findings
- De'Longhi was ahead of Stiebel Eltron in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, De'Longhi’s share of searches among panel heater brands worldwide moved from 78.3% to 79.5%, and its estimated monthly branded searches moved from 823K to 673K.
- Across the 12 months ending September 2026, Stiebel Eltron’s share of searches among panel heater brands worldwide moved from 8.6% to 8.7%, and its estimated monthly branded searches moved from 90.5K to 74K.
How did search popularity change for panel heater brands worldwide in September 2026?
2 changes
In September 2026, De'Longhi gained share of searches among panel heater brands worldwide, from 78.8% to 79.5%.
In September 2026, Stiebel Eltron rose from 3rd to 2nd among panel heater brands worldwide.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using De'Longhi’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.
De'Longhi
1 branded search term
- delonghi
Stiebel Eltron
1 branded search term
- stiebel eltron
Other head-to-heads among panel heater brands
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.