Brandwave

Hot water system brands in New Zealand:Which brands are most popular in search?

In August 2026, Rinnai was the most searched among hot water system brands in New Zealand, with an estimated 8.3K branded searches and 49.3% estimated Share of Search within this set.

Share of Search, August 2026
  1. Rinnai49.3%
  2. Rheem39.2%
  3. Stiebel Eltron9.9%
  4. Thermann1.1%
  5. Dux0.54%

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Share of SearchLeaderboard

Compare the hot water cylinder and gas water heater brands New Zealand homes use. 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.

Share of Search among hot water system brands in New Zealand, by month

Share of Search by month for Rinnai, Rheem, Stiebel Eltron. The figures are in the table below the chart.

View monthly share of search table
MonthRinnaiRheemStiebel EltronThermannDux
Oct 202550.2%38.4%9.6%1.3%0.51%
Nov 202547.6%39.1%11.2%1.2%0.74%
Dec 202551.2%37.5%9.2%1.4%0.73%
Jan 202648.2%40.2%9.9%0.98%0.71%
Feb 202652.6%36.6%9.1%1%0.62%
Mar 202648.5%39.9%9.6%1.4%0.61%
Apr 202648.3%38.6%11.5%1%0.54%
May 202646.8%41.7%10%0.93%0.58%
Jun 202648%40.6%10%0.98%0.52%
Jul 202650.1%38%10.6%0.96%0.39%
Aug 202649.3%39.2%9.9%1.1%0.54%
Sep 2026—————

This month’s ranking, August 2026

  1. 1.Rinnai

    49.3%

    held 1st · 8.3K estimated branded searches · -7.3% vs prior month · -0.7 points

  2. 2.Rheem

    39.2%

    held 2nd · 6.6K estimated branded searches · -3% vs prior month · +1.2 points

  3. 3.Stiebel Eltron

    9.9%

    held 3rd · 1.6K estimated branded searches · -12.7% vs prior month · -0.8 points

  4. 4.Thermann

    1.1%

    held 4th · 190 estimated branded searches · +11.8% vs prior month · +0.2 points

  5. 5.Dux

    0.54%

    held 5th · 90 estimated branded searches · +28.6% vs prior month · +0.1 points

Compare search popularity between leading brands

Which brand is most popular in search among hot water system brands in New Zealand?

In August 2026, Rinnai was the most searched among hot water system brands in New Zealand, with an estimated 8.3K branded searches and 49.3% estimated Share of Search within this set. Rheem is in 2nd place, 10.1 percentage points behind at 39.2% Share of Search.

New Zealand hot water system brands, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
Rinnai50.2% → 49.3%52.6%Feb 202646.8%May 20261st
Rheem38.4% → 39.2%41.7%May 202636.6%Feb 20262nd
Stiebel Eltron9.6% → 9.9%11.5%Apr 20269.1%Feb 20263rd
Thermann1.3% → 1.1%1.4%Mar 20260.93%May 20264th
Dux0.51% → 0.54%0.74%Nov 20250.39%Jul 20265th

Each finding as a sentence

  • Across the 11 months ending August 2026, Rinnai’s estimated Share of Search among hot water system brands in New Zealand decreased from 50.2% to 49.3%.
  • Across the 11 months ending August 2026, Rheem’s estimated Share of Search among hot water system brands in New Zealand increased from 38.4% to 39.2%.
  • Across the 11 months ending August 2026, Rinnai’s estimated Share of Search among hot water system brands in New Zealand peaked at 52.6% in February 2026 and was lowest at 46.8% in May 2026.
  • Across the 11 months ending August 2026, Rheem’s estimated Share of Search among hot water system brands in New Zealand peaked at 41.7% in May 2026 and was lowest at 36.6% in February 2026.
  • Across the 11 months ending August 2026, Stiebel Eltron’s estimated Share of Search among hot water system brands in New Zealand peaked at 11.5% in April 2026 and was lowest at 9.1% in February 2026.
  • Across the 11 months ending August 2026, Stiebel Eltron, Thermann and Dux held steady: their estimated Share of Search among hot water system brands in New Zealand each moved less than 0.5 percentage points.

How did search popularity change for New Zealand hot water system brands in August 2026?

  1. In August 2026, Rheem gained estimated Share of Search among hot water system brands in New Zealand, from 38% to 39.2%.

  2. In August 2026, Stiebel Eltron lost estimated Share of Search among hot water system brands in New Zealand, from 10.6% to 9.9%.

  3. In August 2026, Rinnai lost estimated Share of Search among hot water system brands in New Zealand, from 50.1% to 49.3%.

  4. Estimated monthly branded searches for Dux in New Zealand rose 28.6% over 11 measured months, from 70 to 90 in August 2026.

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