Best AI for HVAC technicians in 2026

We wrote this for one kind of reader: a commercial HVAC or refrigeration service team that runs a field service system, and whose knowledge is spread across old work orders and a few senior technicians. If that is not you, how to choose says which tool fits instead.

Quick comparison

Compared on	Best for	Answers from	How technicians use it	Writes the job report	Published price
ServiceTitan Atlas	Companies already on ServiceTitan with Field Pro	Your ServiceTitan data, and equipment manuals, spec sheets and installation guides	Ask Atlas in the ServiceTitan mobile apps, typed or spoken	Partly. Adds a part to the invoice, estimate or a job note	Not published. Equipment and troubleshooting modules need Field Pro
Bluon MasterMechanic	Questions about the model: manuals, specs and parts by model number	Bluon’s database of HVAC models, manuals and parts, and its record of real support calls	The Bluon app, or embedded in the field service app you already use	Yes. Job summaries from the conversation	Custom, set by technician count, assets and field service software
measureQuick mQ Assist	Checking the live readings on the system in front of you	The live readings from the Bluetooth probes connected to the system	The measureQuick app, by voice or text, with Bluetooth tools attached	Yes. Reports and photo storage in mQ Cloud, with Premier Services	App is free. mQ Assist is in Premier Services at $49 per user per month
XOi	Documenting every asset with photos, video and data plate scans	XOi’s library of manuals and diagrams, plus your captured history of each asset	Scan the data plate, follow guided workflows, capture photos, video and notes	Yes. AI job summaries and customer-ready reports	Not published
FixBot Pro	Answers from manufacturer service manuals, with no integration project	Manufacturer service manuals and schematics, plus manuals and notes your team uploads	Chat on web, iPhone and Android, by voice, photo or reading	Partly. Saves a service record inside FixBot	$9 per user per month with limits, $30 for Professional
ChatGPT	A free general assistant for theory and quick checks	What the model learned in training, web search, and the photos or files you give it	The ChatGPT app or website: typing, photos and spoken conversation. In the US and Canada also by phone, on 1-800-CHATGPT	No	Free plan. Plus is $20 per month
Kenner	Commercial HVAC/R teams that need answers from each unit’s own history, and the report written	Your company’s own knowledge base, which Kenner builds: units, past jobs, alarms, parts and manuals from all your systems, linked in a knowledge graph	A normal phone call, or WhatsApp, iMessage, Teams or RCS. No new app	Yes. From a voice note, written back to your FSM, ERP or CRM	Free while in beta. Starts with a two-week pilot

Prices and features are from each vendor’s own pages, checked on 10 November 2026. Each price links to the page it comes from.

We also publish a longer comparison of 14 tools at aiinhvac.com.

ServiceTitan Atlas

What it is

The assistant built into ServiceTitan. In the field it answers from the job, customer and equipment data already in ServiceTitan, and from equipment manuals, and it helps diagnose and troubleshoot. Atlas page

Who it is for

Companies that run on ServiceTitan. Atlas is available for commercial HVAC, residential HVAC and plumbing, and only to managed technicians. Field mobile guide

Price

Not published. The equipment information and troubleshooting modules are only available with Field Pro. Use Atlas in mobile

Strengths

• Answers from the job history, equipment, estimates and agreements already in ServiceTitan. Use Atlas in mobile
• Looks things up in equipment manuals, spec sheets and installation guides. Atlas page
• Diagnosis and troubleshooting help, with diagnostic tests and calculators. Atlas page
• Finds replacement parts and adds a matched part to the invoice, the estimate or a job note. Field mobile guide

Trade-offs

• Only available inside ServiceTitan, and in Field Pro only for managed technicians. Field mobile guide
• Works on one make or model per question, and unsupported equipment may have no documentation. Field mobile guide
• ServiceTitan notes that responses may be inaccurate, incomplete or out of date and should be verified. Use Atlas in mobile

Pick it over Kenner if

Your company runs on ServiceTitan with Field Pro. Atlas is already in the app your technicians open, and it answers from the same job and equipment data.

Pick Kenner over it if

You are not on ServiceTitan, or you want technicians to ask by WhatsApp, iMessage or a phone call and have the whole job report written back. Atlas adds a part to the invoice or creates a job note; it does not write the report. Kenner is also not tied to the FSM: through your CRM and ERP it orders parts and prepares quotes.

Longer comparison: Kenner vs ServiceTitan Atlas.

Bluon MasterMechanic

What it is

Manuals, specs and parts for HVAC units by model number, plus MasterMechanic, an AI trained on 130,000 tech support calls that gives diagnostic and troubleshooting help. Bluon docs

Who it is for

HVAC contractors, residential and commercial, whose technicians meet many brands and need the data for the model in front of them. Bluon pricing

Price

Custom, set by technician count, assets and field service software. Bluon pricing

Strengths

• HVAC-specific: specs, manuals and parts by model number, across more than 260 brands. Bluon pricing
• Troubleshooting AI built on real support calls with Bluon’s own veteran technicians. Bluon docs
• Embedded in field service software: Bluon lists ServiceTitan, BuildOps and Housecall Pro. Bluon pricing
• Works in English and Spanish, and writes job summaries from the conversation. Bluon docs

Trade-offs

• It answers from Bluon’s equipment data and support history, not from your own company’s past jobs. Bluon docs
• HVAC and refrigeration equipment only. Bluon
• Pricing is custom, so there is no number to compare. Bluon pricing

Pick it over Kenner if

The question is about the model, not the unit. Bluon answers from manuals, specs and parts by model number and from its support calls, and it needs none of your history.

Pick Kenner over it if

The answer is in your own past jobs, such as what fixed this fault on this unit last time. Bluon answers from its own data, not from your company’s history. The two can be used side by side.

Longer comparison: Kenner vs Bluon.

measureQuick mQ Assist

What it is

A diagnostics app that reads Bluetooth probes and gauges in real time. mQ Assist is its AI: it talks through the system from the live readings and suggests likely causes and the measurements that would confirm them. mQ Assist page

Who it is for

Technicians who carry compatible Bluetooth tools. measureQuick positions the product for residential work. mQ Assist page

Price

The app is free. mQ Assist is part of Premier Services at $49 per user per month, month to month. measureQuick pricing

Strengths

• Grounded in measurements, not descriptions: it works from the live readings on the screen. mQ Assist page
• Connects to more than 80 Bluetooth tools across more than 17 brands, including Fieldpiece and Testo. measureQuick pricing
• The core diagnostics app is free, and the paid tier has a published price. measureQuick pricing
• Reads the data plate with the camera to identify the model, capacity and age of the system. mQ Assist page

Trade-offs

• It needs compatible Bluetooth tools connected to the system. mQ Assist page
• The AI features are in the paid Premier Services tier. measureQuick pricing
• Its pages do not speak to commercial refrigeration. mQ Assist page
• measureQuick says mQ Assist does not condemn equipment or replace your judgment. mQ Assist page

Pick it over Kenner if

You want the live readings checked. mQ Assist reasons from the Bluetooth probes on the system in front of you, the app is free and the AI is $49 per user per month.

Pick Kenner over it if

You service commercial HVAC or refrigeration and need the unit’s history and the job report. measureQuick reads the probes and Kenner reads the service record, so they answer different questions.

XOi

What it is

An equipment data platform for field service. Technicians scan a data plate to get manuals, service bulletins and the history of the unit, document the job with photos and video, and AI writes the job summary. XOi jobsite workflows

Who it is for

Companies that want every asset and every visit documented the same way, with photos, video and data plate scans. XOi jobsite workflows

Price

Not published. XOi pricing

Strengths

• A data plate scan brings up manuals, service bulletins and equipment history on site. XOi jobsite workflows
• AI job summaries and customer-ready reports after every visit. XOi jobsite workflows
• An equipment library across more than 215 manufacturers. XOi
• Guided workflows with photo and video documentation. XOi jobsite workflows

Trade-offs

• The AI described structures data and writes summaries. XOi’s pages do not describe a conversational troubleshooting assistant. XOi jobsite workflows
• Bought and rolled out by the company through an implementation package, not something a single technician signs up for. XOi pricing
• Prices are not published. XOi pricing

Pick it over Kenner if

You want every asset documented with photos, video and data plate scans, and a library of manuals from more than 215 manufacturers.

Pick Kenner over it if

You want technicians to ask a question and get an answer. XOi’s pages describe summaries and structured data, not a conversational troubleshooting assistant, and Kenner needs no app.

Longer comparison: Kenner vs XOi.

FixBot Pro

What it is

iFixit’s AI repair assistant. For HVAC it looks up service documentation by model or fault code, builds a test sequence from the service manual, and lets a team add its own manuals and notes. FixBot Pro for HVAC

Who it is for

A technician or a small team that wants manual-based answers today, at a per-user price and with no integration project. FixBot Pro for HVAC

Price

$9 per user per month with rate limits. $30 per user per month for Professional. FixBot Pro for HVAC

Strengths

• Every answer points back to the manufacturer literature or company material it used.
• Says so when it needs another reading or cannot find a reliable answer.
• Voice, photos and readings as input during the call.
• Per-user prices are published.

FixBot Pro for HVAC

Trade-offs

• Coverage varies by manufacturer and model.
• OEM service manuals and uploading your own are in the Professional tier, not the $9 one.
• It saves a service record inside FixBot, and its page names no connection to field service software, so the unit’s past jobs stay outside it unless you upload them.

FixBot Pro for HVAC

Pick it over Kenner if

You want answers from manufacturer service manuals with the source shown, for $9 to $30 per user per month and with no integration project.

Pick Kenner over it if

The unit’s past jobs matter as much as the manual. FixBot’s page names no connection to field service software, so that history stays outside it unless you upload it.

ChatGPT

What it is

OpenAI’s general-purpose chatbot. Nothing on its pages is specific to HVAC, so for a technician it is a general assistant with voice and photo input, not a trade tool.

Who it is for

Anyone who wants a free general assistant and will check what it says against the manual.

Price

Free plan. Plus is $20 per month. ChatGPT pricing

Strengths

• A free version, with voice on web, iPhone and Android. ChatGPT Voice
• Takes spoken questions, images and live video from the camera. ChatGPT Voice
• Can be called on the phone: 1-800-CHATGPT from a US or Canadian number, with 30 minutes a month free. 1-800-ChatGPT
• Can search the web and read a PDF manual you upload. Uploads are limited on the free plan. ChatGPT pricing

Trade-offs

• OpenAI says it can produce incorrect or misleading output and advises verifying technical information. OpenAI help
• It has no link to your company’s job history or the record of the unit in front of you. OpenAI’s connected apps page names services such as Google Drive and Slack, not field service software. Connected apps
• It does not write the job report into your field service software.

Pick it over Kenner if

You want a free general assistant for theory, a photo of a wiring diagram or a quick sanity check, and you will verify the answer against the manual.

Pick Kenner over it if

The answer has to come from this unit’s record with the source shown, and the report has to land in your field service software. ChatGPT has no link to either.

Longer comparison: Can you use ChatGPT for HVAC troubleshooting?

Kenner

This is ours, so read it with that in mind. The trade-offs are stated as plainly as everyone else’s.

What it is

We build your company’s own knowledge base: a knowledge graph on top of the systems you already run (FSM, ERP, CRM and others), linking units, past jobs, alarms, parts and manuals. On top of it, every technician gets the personal assistant for HVAC/R service, to message or call like a colleague. It answers from the history of the unit in front of them. It is not limited to HVAC knowledge or to your FSM: it builds on all your systems. getkenner.com

Who it is for

Service teams that keep commercial HVAC and refrigeration running, contractors or in-house. getkenner.com

Price

Free while Kenner is in beta. It starts with a demo and a two-week pilot for five to ten technicians. Prices for after the beta are not published. getkenner.com

Strengths

• It builds your company’s own knowledge base. Units, past jobs, alarms, parts and manuals from your FSM, ERP, CRM and other systems are linked in one knowledge graph, so the answer is what fixed this fault on this unit before, with the source of each part shown.
• You can call it, on a normal phone number, when your hands are busy. Of the seven tools here it is the only one that answers a phone call from your own units’ history. ChatGPT also has a phone line, but it knows nothing about your units.
• Nothing to install or learn. Besides the phone call, technicians use the messenger they already have: WhatsApp, iMessage, Teams or RCS.
• It writes the job report, the refrigerant record (EPA 608, F-gas), parts and follow-ups back to the FSM, ERP or CRM you already run.
• It works beyond the FSM. With general web search and a connection to your CRM and ERP, it orders parts and prepares quotes for you, so the technician does not have to stop and do it.
• It shows service leaders what breaks across your units, which faults take longest to diagnose, and first-time fix by team, fault type, model and site.
• We are a young startup, and that works in your favour: we build custom integrations for the systems you run, and support comes straight from the engineering team that builds the product.

getkenner.com

Trade-offs

• No self-serve sign-up. It starts with a demo and a pilot, so it is not for a single technician who wants an app tonight.
• It answers from your own service history, so it needs a connection to your FSM, CRM or ERP before it is useful.
• We are a young startup, with what that means on paper: Kenner is in beta, ISO 27001 certification is in progress, the SOC 2 audit is in preparation, and prices for after the beta are not published.
• Our site does not mention offline use.

Pick something else if

You are one technician and want something tonight (FixBot Pro, ChatGPT or measureQuick’s free app). Or the question is only about the model and its parts (Bluon). Or everything you need is already in ServiceTitan with Field Pro (Atlas).

Pick Kenner if

You are a commercial HVAC or refrigeration team with a field service system, the answers are in your own past jobs, and you want the report written back to that system from a voice note or a phone call, with parts ordered and quotes prepared through your CRM and ERP.

More detail: what Kenner is and how a pilot runs.

How to choose

• You run ServiceTitan with Field Pro: start with Atlas. It is already in the app. Add Kenner if you want questions by message or phone call and the whole report written back.
• You are a single technician: FixBot Pro at $9 per user per month, ChatGPT’s free plan, or measureQuick’s free app. Not Kenner.
• You are a commercial team working across many brands, with a field service system: Kenner for what happened on each unit, and Bluon alongside it for model data and parts.
• You need live readings checked: measureQuick mQ Assist. Nothing else here reads the probes.
• You only need manuals: Bluon for manuals and parts by model number, or FixBot Pro for manual-based answers with the source shown.
• You want every visit documented with photos and video: XOi.
• Your technicians would rather call than type: Kenner, which answers a phone call from your own units’ history. ChatGPT has a phone line in the US and Canada, with no link to your units.
• You want free: ChatGPT’s free plan, or measureQuick’s app without the AI. Kenner is free while in beta, but it starts with a demo and a pilot, not a download.

Bottom line

These tools answer from different places: the field service system (Atlas), a model database (Bluon), live probes (measureQuick), captured asset records (XOi), service manuals (FixBot Pro), general knowledge (ChatGPT) and your own service history (Kenner). Pick by where your answers actually are.

If they are in your own old work orders and in the heads of a few senior technicians, that is the case we built Kenner for. If they are not, one of the other six will serve you better, and several of them you can try today.

Common questions