Boiler brands in the United Kingdom:Which are most popular?

Name: Boiler brands in the United Kingdom: Which are searched most?
Creator: Brandwave
License: https://creativecommons.org/licenses/by/4.0/

In September 2026, Worcester Bosch was the most searched boiler brand in the United Kingdom, accounting for 33% of all searches among the five brands we track. When we checked with ChatGPT and Google AI Overviews, Worcester Bosch and Vaillant showed up in every answer. Worcester Bosch was recommended most often, coming first in every response.

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Top boiler brands in ChatGPT and Google AI Overviews

In Brandwave's three ChatGPT questions and one Google AI Overview, Worcester Bosch and Vaillant appeared every time. Worcester Bosch was recommended most often, coming first in every answer. Vaillant was second, and Viessmann was third.

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.

How many AI answers named each brand
Brand	ChatGPT	Google	Answers that named it
Worcester Bosch	Named in 3 of 3 ChatGPT answers	Named in 1 of 1 Google AI Overviews	4 of 4
Vaillant	Named in 3 of 3 ChatGPT answers	Named in 1 of 1 Google AI Overviews	4 of 4
Ideal	Named in 3 of 3 ChatGPT answers	Named in 0 of 1 Google AI Overviews	3 of 4
Viessmann	Named in 3 of 3 ChatGPT answers	Named in 0 of 1 Google AI Overviews	3 of 4
Baxi	Named in 1 of 3 ChatGPT answers	Named in 0 of 1 Google AI Overviews	1 of 4

Worcester Bosch4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
Vaillant4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
Ideal3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
Viessmann3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
Baxi1 of 4Named in 1 of 3 ChatGPT answersNamed in 0 of 1 Google answers

See every answer about boiler brands

4 answers

Asked ChatGPT
“Which boiler brand should I get in the UK?”
1. 1Worcester Bosch
2. 2Vaillant
3. 3Viessmann
4. 4Ideal
Asked ChatGPT
“What are the best boiler brands in the UK?”
1. 1Worcester Bosch
2. 2Vaillant
3. 3Viessmann
4. 4Ideal
5. 5Baxi
Asked ChatGPT
“What's the most reliable combi boiler brand in the UK?”
1. 1Worcester Bosch
2. 2Vaillant
3. 3Viessmann
4. 4Ideal
Searched Google, AI Overview
“combi boiler”
Google showed no AI Overview for this search.
Searched Google, AI Overview
“new boiler”
1. 1Worcester Bosch
2. 2Vaillant

Brands are shown in the order each answer named them. The survey took place in United Kingdom on October 22, 2026.

Which boiler brands do people search for most?

This chart shows how often people search Google for each boiler brand by name. Each line represents a brand's share of searches for all five boiler brands we track, month by month, from searches in United Kingdom.

Share of searches among boiler brands in the United Kingdom, by month

Month	Worcester Bosch	Ideal	Vaillant	Baxi	Viessmann
Oct 2025	30.5%	30.5%	20.4%	11.1%	7.4%
Nov 2025	31.2%	31.2%	20.8%	9.3%	7.6%
Dec 2025	32.4%	32.4%	17.7%	9.7%	7.9%
Jan 2026	29.2%	35.6%	19.4%	8.7%	7.1%
Feb 2026	32.4%	32.4%	17.7%	9.7%	7.9%
Mar 2026	32.4%	32.4%	17.7%	9.7%	7.9%
Apr 2026	34.4%	28.1%	18.8%	10.2%	8.4%
May 2026	31.8%	26%	21.3%	11.5%	9.4%
Jun 2026	36.3%	24.3%	19.9%	10.8%	8.8%
Jul 2026	36%	24.1%	19.6%	13.1%	7.1%
Aug 2026	33.1%	27%	22.1%	9.8%	7.9%
Sep 2026	33%	27%	22.1%	9.8%	8%

Rank	Brand	Share of searches	Estimated monthly branded searches	vs prior month	Share change
1, held 1st	Worcester Bosch	33%	14.8K	+22.3%	0 points
2, held 2nd	Ideal	27%	12.1K	+22.2%	0 points
3, held 3rd	Vaillant	22.1%	9.9K	+22.2%	0 points
4, held 4th	Baxi	9.8%	4.4K	+22.2%	0 points
5, held 5th	Viessmann	8%	3.6K	+24.1%	+0.1 points

1.Worcester Bosch
33%
Held 1st. 14.8K estimated branded searches, +22.3% vs prior month. Share 0 points.
2.Ideal
27%
Held 2nd. 12.1K estimated branded searches, +22.2% vs prior month. Share 0 points.
3.Vaillant
22.1%
Held 3rd. 9.9K estimated branded searches, +22.2% vs prior month. Share 0 points.
4.Baxi
9.8%
Held 4th. 4.4K estimated branded searches, +22.2% vs prior month. Share 0 points.
5.Viessmann
8%
Held 5th. 3.6K estimated branded searches, +24.1% vs prior month. Share +0.1 points.

Which brand is most popular in search among boiler brands in the United Kingdom?

5 brands

In September 2026, Worcester Bosch was the most searched among boiler brands in the United Kingdom, with an estimated 14.8K branded searches, 33% of all searches for the five we track. Ideal is in 2nd place, 6 percentage points behind at 27%.

United Kingdom boiler brands, last 12 months ending September 2026
Brand	Share of searches	Peak	Low	Rank
Worcester Bosch	30.5% → 33%	36.3%Jun 2026	29.2%Jan 2026	2nd → 1st
Ideal	30.5% → 27%	35.6%Jan 2026	24.1%Jul 2026	1st → 2nd
Vaillant	20.4% → 22.1%	22.1%Aug 2026	17.7%Dec 2025	3rd
Baxi	11.1% → 9.8%	13.1%Jul 2026	8.7%Jan 2026	4th
Viessmann	7.4% → 8%	9.4%May 2026	7.1%Jan 2026	5th

Each finding as a sentence

Across the 12 months ending September 2026, Worcester Bosch’s share of searches among boiler brands in the United Kingdom increased from 30.5% to 33%.
Across the 12 months ending September 2026, Ideal’s share of searches among boiler brands in the United Kingdom decreased from 30.5% to 27%.
Across the 12 months ending September 2026, Vaillant’s share of searches among boiler brands in the United Kingdom increased from 20.4% to 22.1%.
Across the 12 months ending September 2026, Baxi’s share of searches among boiler brands in the United Kingdom decreased from 11.1% to 9.8%.
Across the 12 months ending September 2026, Viessmann’s share of searches among boiler brands in the United Kingdom increased from 7.4% to 8%.
Across the 12 months ending September 2026, Worcester Bosch’s share of searches among boiler brands in the United Kingdom peaked at 36.3% in June 2026 and was lowest at 29.2% in January 2026.
Across the 12 months ending September 2026, Ideal’s share of searches among boiler brands in the United Kingdom peaked at 35.6% in January 2026 and was lowest at 24.1% in July 2026.
Across the 12 months ending September 2026, Vaillant’s share of searches among boiler brands in the United Kingdom peaked at 22.1% in August 2026 and was lowest at 17.7% in December 2025.
Across the 12 months ending September 2026, Baxi’s share of searches among boiler brands in the United Kingdom peaked at 13.1% in July 2026 and was lowest at 8.7% in January 2026.
Across the 12 months ending September 2026, Viessmann’s share of searches among boiler brands in the United Kingdom peaked at 9.4% in May 2026 and was lowest at 7.1% in January 2026.
Across the 12 months ending September 2026, Worcester Bosch rose from 2nd to 1st among boiler brands in the United Kingdom.
Across the 12 months ending September 2026, Ideal fell from 1st to 2nd among boiler brands in the United Kingdom.

How did search popularity change for United Kingdom boiler brands in September 2026?

5 changes

Worcester Bosch’s share of searches among boiler brands in the United Kingdom has lost ground for 3 months in a row, from 36.3% to 33% in September 2026.
Estimated monthly branded searches for Baxi in the United Kingdom fell 45.7% over 12 measured months, from 8.1K to 4.4K in September 2026.
Estimated monthly branded searches for Ideal in the United Kingdom fell 45.5% over 12 measured months, from 22.2K to 12.1K in September 2026.
Estimated monthly branded searches for Viessmann in the United Kingdom fell 33.3% over 12 measured months, from 5.4K to 3.6K in September 2026.
Estimated monthly branded searches for Vaillant in the United Kingdom fell 33.1% over 12 measured months, from 14.8K to 9.9K in September 2026.

How are branded searches counted for boiler brands?

6 search terms

Each brand's share of searches among boiler brands comes from the terms listed under its name. When people mostly search for a brand because of something else it sells, only the searches that name this product count here.