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ItalianoWhich heating & air conditioning brands
AI recommends in the US
Brands ranked by mention rate on ChatGPT, Gemini and Google AI Mode
- Brands
- 149
- Questions
- 400
- Answers
- 1,200
- AI engines
- 3
01 · Brand leader
Top 10 brands by mention rate
No single brand runs away with the category.
Several brands compete for the top places.
| # | Brand | Mention rate Share of Google AI Mode’s answers in this market that name the brand | Share of voice The brand’s share of all brand mentions in the engine’s answers | 95% range The interval the true mention rate most likely falls in | In top 20 of The brand’s place inside each engine’s own top 20 |
|---|---|---|---|---|---|
| 11–2 | Carrier | 61.3% | 12.8% | 56.5–66.0 | ChatGPT1Gemini1Google AI Mode1 |
| 21–2 | Trane | 58.0% | 11.8% | 53.1–62.9 | ChatGPT2Gemini2Google AI Mode2 |
| 33 | Lennox | 43.3% | 8.8% | 38.4–48.1 | ChatGPT5Gemini4Google AI Mode3 |
| 44–7 | One Hour Heating & Air Conditioning | 29.0% | 8.1% | 24.5–33.5 | ChatGPT3Gemini3Google AI Mode4 |
| 54–9 | Goodman | 20.8% | 3.9% | 16.8–24.7 | ChatGPT11Gemini5Google AI Mode5 |
| 64–9 | Rheem | 20.8% | 4.0% | 16.8–24.7 | ChatGPT10Gemini7Google AI Mode6 |
| 74–9 | American Standard | 20.5% | 3.8% | 16.5–24.5 | ChatGPT13Gemini6Google AI Mode7 |
| 85–11 | Service Experts | 15.8% | 3.9% | 12.2–19.3 | ChatGPT8Gemini9Google AI Mode8 |
| 95–12 | Aire Serv | 14.0% | 3.5% | 10.6–17.4 | ChatGPT6Gemini10Google AI Mode9 |
| 108–12 | Aprilaire | 10.8% | 3.5% | 7.7–13.8 | ChatGPT7Gemini13Google AI Mode10 |
| 118–13 | ARS/Rescue Rooter | 9.0% | 2.0% | 6.6–12.2 | ChatGPT4Gemini12Google AI Mode11 |
| 129–14 | National HVAC Service | 8.5% | 2.1% | 6.1–11.6 | ChatGPT17Gemini14Google AI Mode12 |
| 1311–19 | York | 4.3% | 1.1% | 2.7–6.7 | ChatGPT9Gemini15Google AI Mode13 |
| 1412–20 | Sealed | 3.8% | 0.9% | 2.3–6.1 | ChatGPT12Gemini19Google AI Mode14 |
| 1513–20 | Service Logic | 3.5% | 0.7% | 2.1–5.8 | Google AI Mode15 |
| 1613–20 | Lennox National Account Services | 3.0% | 0.6% | 1.7–5.2 | ChatGPT14Google AI Mode16 |
| 1713–20 | Apex Service Partners | 2.0% | 0.3% | 1.0–3.9 | Google AI Mode17 |
| 1813–20 | Horizon Services | 2.0% | 0.4% | 1.0–3.9 | Gemini11Google AI Mode18 |
| 1913–20 | Johnson Controls | 1.5% | 0.3% | 0.7–3.2 | ChatGPT16Gemini18Google AI Mode19 |
| 2014–20 | Independent Power | 1.0% | 0.5% | 0.4–2.5 | Google AI Mode20 |
02 · Engine consensus
Where each brand ranks
inside every engine’s top 10
There is no single AI top 10.
Only 7 of 13 brands rank in the top 10 of all 3 engines.
| Brand | ChatGPT | Gemini | Google AI Mode | In top 10 of |
|---|---|---|---|---|
| Carrier | 1 | 1 | 1 | ChatGPTGeminiGoogle AI Mode |
| Trane | 2 | 2 | 2 | ChatGPTGeminiGoogle AI Mode |
| One Hour Heating & Air Conditioning | 3 | 3 | 4 | ChatGPTGeminiGoogle AI Mode |
| Lennox | 5 | 4 | 3 | ChatGPTGeminiGoogle AI Mode |
| Rheem | 10 | 7 | 6 | ChatGPTGeminiGoogle AI Mode |
| Aire Serv | 6 | 10 | 9 | ChatGPTGeminiGoogle AI Mode |
| Service Experts | 8 | 9 | 8 | ChatGPTGeminiGoogle AI Mode |
| Goodman | – | 5 | 5 | GeminiGoogle AI Mode |
| American Standard | – | 6 | 7 | GeminiGoogle AI Mode |
| Aprilaire | 7 | – | 10 | ChatGPTGoogle AI Mode |
| ARS/Rescue Rooter | 4 | – | – | ChatGPT |
| Service Champions | – | 8 | – | Gemini |
| York | 9 | – | – | ChatGPT |
Rank inside each engine’s own top 10 · a dash means the brand is not in that engine’s top 10.
The rest depend on which engine the buyer opens — so a rank from a single engine is not a market position.
Source: Findrix's research. Where each brand ranks inside every engine's top 10, heating & air conditioning, United States.
03 · Most cited domains
Which sites each engine cites, and
how much of its answers they carry
| Domain | ChatGPT | Gemini | Google AI Mode |
|---|---|---|---|
| google.com | 3.5% | – | 13.4% |
| hvacprojectcost.com | 1× | 8.3% | 3.8% |
| hookagency.com | – | 7.7% | – |
| modernize.com | <0.1% | 6.8% | 5.0% |
| youtube.com | – | 0.1% | 4.3% |
| carrier.com | 3.7% | 0.4% | 2.3% |
| reddit.com | 3.6% | 0.6% | 3.1% |
| epa.gov | 2.9% | – | 0.2% |
| schwantesheating.com | – | 2.9% | 0.9% |
| money.com | 1× | 2.7% | 1.2% |
| energystar.gov | 2.6% | 0.4% | 0.4% |
| filterbuy.com | 0.1% | 2.6% | 0.7% |
04 · The questions we asked
400 buyer questions, each
asked once per engine
General requests and requests with a specific use case, audience, selection criterion or problem.
| Question type | Questions |
|---|---|
| General questions | 6 |
| Use case | 209 |
| Audience | 20 |
| Selection criteria | 120 |
| Problem to solve | 45 |
By question type
Examples · General questions
“what are the best HVAC companies in the US?”
“which HVAC companies are best value for money in the US?”
Examples · Use case
“what are the best HVAC companies for replacing noisy window shakers with whole-home ductless mini-splits in the US?”
“which HVAC companies would you recommend for updating an obsolete heating system before listing a home in the US?”
Examples · Audience
“which HVAC companies suit families with allergies or asthma seeking whole-home air purification best in the US?”
“which HVAC companies are best for residential landlords managing two to ten rental properties in the US?”
Examples · Selection criteria
“which HVAC companies should I choose if dedicated whole-house dehumidification integrated with central ducts matters most in the US?”
“what are the top-rated HVAC companies for rugged builder-grade equipment with cheap and accessible replacement parts in the US?”
Examples · Problem to solve
“contractor refuses to install cold climate heat pump without furnace. which HVAC companies can help in the US?”
“heat pump installation requires 200 amp service panel upgrade. which HVAC companies can help in the US?”
Source: Findrix research. 400 buyer questions by question type, heating & air conditioning, United States.
05 · Buyer personas
Who the questions are for
Select a persona to see example questions from this market.
By persona
Examples · Aging System Replacer
“which HVAC companies would you recommend for updating an obsolete heating system before listing a home in the US?”
Examples · Energy Efficiency & Electrification Upgrader
“what are the best HVAC companies for replacing noisy window shakers with whole-home ductless mini-splits in the US?”
“contractor refuses to install cold climate heat pump without furnace. which HVAC companies can help in the US?”
“heat pump installation requires 200 amp service panel upgrade. which HVAC companies can help in the US?”
Examples · Indoor Air Quality & Health Optimizer
“which HVAC companies should I choose if dedicated whole-house dehumidification integrated with central ducts matters most in the US?”
“which HVAC companies suit families with allergies or asthma seeking whole-home air purification best in the US?”
Examples · DIY Property Manager & Landlord
“what are the top-rated HVAC companies for rugged builder-grade equipment with cheap and accessible replacement parts in the US?”
“which HVAC companies are best for residential landlords managing two to ten rental properties in the US?”
Examples · No persona assigned
“what are the best HVAC companies in the US?”
“which HVAC companies are best value for money in the US?”
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Frequently asked questions
What does this Heating & Air Conditioning AI Search report measure?
Which heating & air conditioning brands ChatGPT, Gemini and Google AI Mode name when buyers in the United States ask them for advice. We asked 400 buyer questions, each once to each engine, and counted how often every brand appears and which websites the engines cite. Measured Oct 2026.
What does “mention rate” mean?
The share of an engine’s answers to this market’s buyer questions that name the brand. A 10% mention rate means the brand came up in about one answer in ten. Every rate carries a 95% range: the interval the true value most likely falls in.
How are the top Heating & Air Conditioning brands ranked?
By mention rate, separately for each engine — pick the engine above the table. When two brands’ 95% ranges overlap, their order is not really different — tick “Only distinguishable places” to see the ranks the data can actually separate.
Why does a brand rank differently across AI engines?
Each engine retrieves from different sources and weighs them differently, so the brands it knows best differ too. Only 7 of 13 brands make the top 10 of every engine here; the rest depend on which engine the buyer opens.
What counts as a citation?
A link or source an engine shows alongside its answer. We record every cited domain, whether it appears inline or in the source list.
Why can AI mention a brand without citing its website?
Engines learn brand names from reviews, expert sites, retailers and forums, then cite those sources rather than the brand’s own pages. A brand can be named often while its own site is rarely among the sources.
What does “share of citations” mean?
Of all the citations one engine gave across our questions, the share that went to a given domain. The shares of one engine add up to 100%.
Will I get the same answers if I ask these questions myself?
Not word for word. AI answers vary between runs, accounts and locations, which is why we ask every question once to each engine and report a 95% range instead of a single answer.