Which heating & air conditioning brands
AI recommends in the US
Brands ranked by mention rate on ChatGPT, Gemini, Google AI Mode and Perplexity
- Brands
- 38
- Questions
- 364
- Answers
- 4,368
- AI engines
- 4
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 questions where Google AI Mode names 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 | 14.8% | 20.5% | 11.6–18.9 | ChatGPT1Gemini1Google AI Mode1Perplexity1 |
| 21–3 | Trane | 12.3% | 13.8% | 9.3–16.0 | ChatGPT2Gemini2Google AI Mode2Perplexity2 |
| 32–10 | Daikin | 7.1% | 3.4% | 4.8–10.2 | ChatGPT4Gemini4Google AI Mode3Perplexity4 |
| 43–12 | Lennox | 5.7% | 6.1% | 3.7–8.6 | ChatGPT3Gemini3Google AI Mode4Perplexity3 |
| 53–13 | American Standard | 5.3% | 5.0% | 3.4–8.1 | ChatGPT12Gemini7Google AI Mode5Perplexity12 |
| 63–15 | Bosch | 5.0% | 3.0% | 3.2–7.8 | ChatGPT5Gemini6Google AI Mode6Perplexity5 |
| 73–20 | Goodman | 3.8% | 1.9% | 2.3–6.4 | ChatGPT7Gemini5Google AI Mode7Perplexity6 |
| 83–20 | Rheem | 3.7% | 1.7% | 2.2–6.1 | ChatGPT6Gemini11Google AI Mode8Perplexity10 |
| 93–20 | WaterFurnace | 3.4% | 2.3% | 2.0–5.8 | ChatGPT9Gemini9Google AI Mode9Perplexity9 |
| 103–20 | ClimateMaster | 3.0% | 1.9% | 1.7–5.3 | ChatGPT10Gemini8Google AI Mode10Perplexity8 |
| 114–20 | Gree | 2.1% | 3.9% | 1.1–4.2 | Google AI Mode11 |
| 124–20 | Aeroseal | 1.9% | 2.8% | 0.9–3.9 | ChatGPT17Gemini15Google AI Mode12Perplexity18 |
| 135–20 | One Hour Heating & Air Conditioning | 1.6% | 3.4% | 0.8–3.5 | ChatGPT11Gemini10Google AI Mode13 |
| 146–20 | LG | 1.4% | 1.6% | 0.6–3.2 | ChatGPT14Google AI Mode14Perplexity11 |
| 156–20 | MasterCool | 1.4% | 2.2% | 0.6–3.2 | ChatGPT16Gemini12Google AI Mode15Perplexity14 |
| 167–20 | Weil-McLain | 1.3% | 1.3% | 0.5–3.0 | ChatGPT19Gemini17Google AI Mode16 |
| 177–20 | Viessmann | 1.3% | 1.3% | 0.5–3.0 | ChatGPT15Gemini14Google AI Mode17Perplexity15 |
| 187–20 | Honeywell Home | 1.3% | 1.8% | 0.5–3.0 | Google AI Mode18Perplexity16 |
| 197–20 | Fujitsu General | 1.2% | 0.8% | 0.5–2.9 | ChatGPT13Gemini18Google AI Mode19Perplexity13 |
| 207–20 | ARS/Rescue Rooter | 1.1% | 1.2% | 0.4–2.8 | Gemini20Google AI Mode20Perplexity17 |
02 · Engine consensus
Where each brand ranks
inside every engine’s top 10
There is no single AI top 10.
Only 8 of 12 brands rank in the top 10 of all 4 engines.
| Brand | ChatGPT | Gemini | Google AI Mode | Perplexity | In top 10 of |
|---|---|---|---|---|---|
| Carrier | 1 | 1 | 1 | 1 | ChatGPTGeminiGoogle AI ModePerplexity |
| Trane | 2 | 2 | 2 | 2 | ChatGPTGeminiGoogle AI ModePerplexity |
| Lennox | 3 | 3 | 4 | 3 | ChatGPTGeminiGoogle AI ModePerplexity |
| Daikin | 4 | 4 | 3 | 4 | ChatGPTGeminiGoogle AI ModePerplexity |
| Bosch | 5 | 6 | 6 | 5 | ChatGPTGeminiGoogle AI ModePerplexity |
| Goodman | 7 | 5 | 7 | 6 | ChatGPTGeminiGoogle AI ModePerplexity |
| ClimateMaster | 10 | 8 | 10 | 8 | ChatGPTGeminiGoogle AI ModePerplexity |
| WaterFurnace | 9 | 9 | 9 | 9 | ChatGPTGeminiGoogle AI ModePerplexity |
| Rheem | 6 | – | 8 | 10 | ChatGPTGoogle AI ModePerplexity |
| American Standard | – | 7 | 5 | – | GeminiGoogle AI Mode |
| York | 8 | – | – | 7 | ChatGPTPerplexity |
| One Hour Heating & Air Conditioning | – | 10 | – | – | Gemini |
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.
04b · Most cited domains
Which sites each engine cites, and
how much of its answers they carry
| Domain | ChatGPT | Gemini | Google AI Mode | Perplexity |
|---|---|---|---|---|
| youtube.com | 0.1% | 0.4% | 26.3% | – |
| energy.gov | 14.0% | 0.1% | 0.2% | 0.7% |
| energystar.gov | 13.8% | 0.2% | 0.9% | 0.5% |
| google.com | <0.1% | 10.4% | 13.3% | 0.1% |
| epa.gov | 5.2% | 0.1% | 0.5% | 0.4% |
| reddit.com | 0.2% | 1.4% | 2.6% | 3.7% |
| carrier.com | 3.4% | 1.0% | 1.1% | 1.6% |
| trane.com | 3.3% | 0.5% | 1.6% | 0.9% |
| permaseal.net | 0.1% | 2.4% | 2.6% | 0.8% |
| snowflakeair.com | – | 2.2% | 0.1% | 1.1% |
| smshvacr.com | 1× | 2.1% | 1.1% | 0.1% |
| lennox.com | 1.9% | 0.5% | 0.5% | 1.1% |
05 · The questions we asked
364 buyer questions, each
asked three times per engine
This isn’t a branded-prompt study.
78% of questions are problem- or solution-aware.
| Intent | Questions |
|---|---|
| Solution-aware | 160 |
| Problem-aware | 124 |
| Informational | 40 |
| Branded comparison | 24 |
| Branded sentiment | 16 |
By intent
Examples · Solution-aware
“How does a Direct Evaporative Coolers compare to standard forced-air central AC in terms of Water usage and maintenance requirements as of latest information?”
“How does a Radiant floor heating compare to standard forced-air central AC in terms of Comfort quality (even heat, radiant feel) as of latest information?”
Examples · Problem-aware
“My cooling system is blowing lukewarm air and making a loud buzzing sound, what kind of Emergency and Repair Services diagnostic should I request as of latest information?”
“Our monthly utility bills spiked dramatically this season, could an issue with Duct Sealing and Insulation (e.g., Aeroseal) be the culprit as of latest information?”
Examples · Informational
“How do modern Geothermal Heat Pump Systems options work to reduce whole-home energy consumption in 2027 as of latest information?”
“What are the main advantages and requirements for installing a Dual-Fuel (Hybrid) Heat Pump Systems in an older residence as of latest information?”
Examples · Branded comparison
“Bosch vs Viessmann for European engineering reputation and compact boiler footprint as of latest information?”
“Aire Serv vs One Hour Heating & Air Conditioning for On-time arrival guarantees, fixed emergency repair pricing, and technician certifications. as of latest information?”
Examples · Branded sentiment
“Is Trane a good choice in air-source heat pumps as of latest information?”
“Is MasterCool a good choice in evaporative (swamp) coolers as of latest information?”
Source: Findrix research. 364 buyer questions by intent, heating & air conditioning, United States.
05b · By product type
Which product segments
the questions cover
The study doesn’t hinge on one product category.
Questions span 12 heating & air conditioning segments.
| Segment |
|---|
| System Installation and Replacement Services |
| Emergency and Repair Services |
| Boiler and Hydronic Heating Systems |
| Preventive Maintenance and Tune-Ups |
| Air-Source Heat Pumps |
| Geothermal Heat Pump Systems |
| Central AC and Gas Furnace Systems |
| Furnace-Only and Electric Resistance Heating |
| Indoor Air Quality Services |
| Ductless Mini-Split and Multi-Split Systems |
| Ductwork and Air Distribution Services |
| Evaporative (Swamp) Coolers |
12 segments
Examples · System Installation and Replacement Services
“Lennox vs Trane for Maximum SEER2 efficiency ratings, proprietary parts availability, and long-term durability. as of latest information?”
Examples · Emergency and Repair Services
“My cooling system is blowing lukewarm air and making a loud buzzing sound, what kind of Emergency and Repair Services diagnostic should I request as of latest information?”
Examples · Boiler and Hydronic Heating Systems
“How does a Radiant floor heating compare to standard forced-air central AC in terms of Comfort quality (even heat, radiant feel) as of latest information?”
Examples · Preventive Maintenance and Tune-Ups
“Can you help me find a licensed contractor for Pre-Winter Heating System Safety Inspections that provides upfront Thoroughness of inspection checklist as of latest information?”
Examples · Air-Source Heat Pumps
“Is Trane a good choice in air-source heat pumps as of latest information?”
Examples · Geothermal Heat Pump Systems
“ClimateMaster vs WaterFurnace for Variable-capacity EER efficiency (7 Series vs Trilogy 45), advanced system diagnostics, and certified installer support. as of latest information?”
Examples · Central AC and Gas Furnace Systems
“Can you help me find a licensed contractor for Gas Furnace (single/two-stage, modulating) that provides upfront Warranty terms as of latest information?”
Examples · Furnace-Only and Electric Resistance Heating
“How does a Wall/Space Heaters (Permanent Install) compare to standard forced-air central AC in terms of Suitability for supplemental/zone heating needs as of latest information?”
Examples · Indoor Air Quality Services
“Where can I find certified technicians who specialize in Duct cleaning and sealing for residential properties as of latest information?”
Examples · Ductless Mini-Split and Multi-Split Systems
“How does a Multi-Zone Multi-Split compare to standard forced-air central AC in terms of Suitability for space without ductwork as of latest information?”
Examples · Ductwork and Air Distribution Services
“Our monthly utility bills spiked dramatically this season, could an issue with Duct Sealing and Insulation (e.g., Aeroseal) be the culprit as of latest information?”
Examples · Evaporative (Swamp) Coolers
“How does a Direct Evaporative Coolers compare to standard forced-air central AC in terms of Water usage and maintenance requirements as of latest information?”
Source: Findrix research. 12 product segments covered by the question set, heating & air conditioning, United States.
Neighbouring markets · Home Services
United States · Australia
Electrical Services
Google AI Mode leader Generac · 16.0% · 29 brands measured
Open this marketUnited States · Australia
Pest & Wildlife Control
Google AI Mode leader Terminix · 28.9% · 34 brands measured
Open this marketUnited States · Australia
Plumbing Services
Google AI Mode leader Roto-Rooter · 7.4% · 42 brands measured
Open this marketUnited States · Australia
Pool & Spa Services
Google AI Mode leader Taylor Technologies · 10.5% · 26 brands measured
Open this market
Frequently asked questions
What does this Heating & Air Conditioning AI Search report measure?
Which heating & air conditioning brands ChatGPT, Gemini, Google AI Mode and Perplexity name when buyers in the United States ask them for advice. We asked 364 buyer questions, each three times to each engine, and counted how often every brand appears and which websites the engines cite. Measured Sep 2026.
What does “mention rate” mean?
The share of questions where an engine names the brand in its answer. A 10% mention rate means the brand came up in about one question 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 8 of 12 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%.
What types of Heating & Air Conditioning questions are included?
Questions real buyers ask across 12 product segments, from problem-aware to solution-aware, informational and branded ones. 78% are problem- or solution-aware; this is not a branded-prompt study.
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 three times per engine and report a 95% range instead of a single answer.