Hitachi vs Rinnai:Which is more popular?
In September 2026, Rinnai had more branded searches than Hitachi among heat pump brands in New Zealand. Rinnai had about 3,820 branded searches, while Hitachi had 260. Rinnai made up 27.8% of all heat pump brand searches we track, and Hitachi accounted for 1.9%. When we asked ChatGPT and Google AI Overviews about heat pump brands, neither Hitachi nor Rinnai appeared in any of the five answers.
Who do people search for more?
Rinnai, about 15 searches for every 1 for Hitachi
Who does AI mention more?
Both were mentioned in 0 of 5 answers.
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Top heat pump brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, neither Hitachi nor Rinnai showed up in any of the five 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.
Mitsubishi Electric5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Panasonic5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Daikin4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Fujitsu4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Midea1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers- Rinnai0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Toshiba0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Hitachi0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about heat pump brands
5 answers
Asked ChatGPT
“Which heat pump brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best heat pump brands in New Zealand?”
Asked ChatGPT
“What's the best heat pump brand in New Zealand for home heating?”
Searched Google, AI Overview
“heat pumps nz”
Searched Google, AI Overview
“heat pump for house”
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Is Hitachi or Rinnai more popular in search?
This chart shows how often people search Google for Hitachi and Rinnai by name. Each line represents a brand's share of searches for all eight heat pump brands we track, month by month, from searches in New Zealand.
Share of searches by month for Rinnai, Hitachi. The figures are in the table below the chart.
View monthly share of searches table
| Month | Rinnai | Daikin | Midea | Mitsubishi Electric | Fujitsu | Panasonic | Toshiba | Hitachi |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 25.8% | 27.4% | 18.2% | 8.7% | 8.1% | 6.5% | 3.9% | 1.5% |
| Nov 2025 | 18.7% | 25.6% | 23.7% | 9.3% | 9.5% | 7.6% | 3.6% | 2% |
| Dec 2025 | 18.1% | 25.4% | 23.4% | 8.5% | 10.8% | 8% | 4.1% | 1.9% |
| Jan 2026 | 20.2% | 25.7% | 20.7% | 8.9% | 10.5% | 7.7% | 4.1% | 2.2% |
| Feb 2026 | 25.8% | 26.8% | 16.1% | 10.2% | 7.9% | 7.1% | 3.9% | 2.2% |
| Mar 2026 | 24.1% | 26.4% | 16.3% | 11.4% | 8.9% | 7% | 3.5% | 2.4% |
| Apr 2026 | 20.8% | 24.7% | 15.2% | 11.1% | 14.2% | 6.3% | 5.5% | 2.2% |
| May 2026 | 23% | 24.5% | 15.8% | 9.2% | 13.6% | 6.9% | 5% | 2% |
| Jun 2026 | 22.9% | 26.4% | 14.6% | 9.5% | 12.8% | 6.6% | 4.8% | 2.4% |
| Jul 2026 | 21.7% | 23.1% | 16.5% | 11.5% | 13.4% | 7% | 4.2% | 2.6% |
| Aug 2026 | 24.8% | 26.1% | 14.5% | 9.8% | 11.2% | 7.3% | 3.6% | 2.6% |
| Sep 2026 | 27.8% | 25.2% | 17% | 9.9% | 8.8% | 6.3% | 3.1% | 1.9% |
How has the Hitachi and Rinnai comparison changed over the last 12 months?
3 findings
- Rinnai was ahead of Hitachi in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Hitachi’s share of searches among heat pump brands in New Zealand moved from 1.5% to 1.9%, and its estimated monthly branded searches moved from 210 to 260.
- Across the 12 months ending September 2026, Rinnai’s share of searches among heat pump brands in New Zealand moved from 25.8% to 27.8%, and its estimated monthly branded searches moved from 3.5K to 3.8K.
How did search popularity change for New Zealand heat pump brands in September 2026?
2 changes
In September 2026, Rinnai overtook Daikin to become the leader among heat pump brands in New Zealand, with 27.8% of the searches.
In September 2026, Hitachi lost share of searches among heat pump brands in New Zealand, from 2.6% to 1.9%.
How are branded searches counted?
11 search terms
Brandwave collects information about searches that people make online using Hitachi’s and Rinnai’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.
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