Which HVAC companies does AI recommend in Calgary?

On 2026-09-26 we opened three clean sessions with gpt-5.4-mini, en-CA locale, browsing off, default settings, and asked: "Recommend an HVAC company in Calgary for a furnace replacement. Name specific businesses." No follow-up was given. The prompt is the way a Calgary homeowner facing a dead furnace in the cold months would ask.

This was one of thirteen city prompts in the panel that day. Like the roofing prompts, it produced names in every run; unlike the Vancouver dental prompt in the same panel, the model did not decline.

Run 1 named Furnace Family, Trail Appliances Heating & Cooling, Legacy Heating & Cooling, Reliance Home Comfort, Superior Plumbing & Heating, and a line reading Sears Home Services / local authorized HVAC installers, then offered to narrow the list to the best three by reputation or value, to split budget from premium installers, or to give a checklist of questions.

Run 2 named Reliance Home Comfort Calgary, Arpi's Industries Ltd., Hero Heating and Cooling, Weber's Home Comfort, Cambridge Heating and Cooling, and Knight Plumbing, Heating and Air Conditioning, each with a short description, and offered a budget versus premium split.

Run 3 named Reliance Home Comfort Calgary, Husky Heating & Air Conditioning, Arpi's Industries Ltd., The Gentlemen Pros, Westcan Heating & Air Conditioning, Furnace Family, High Quality Plumbing & Heating, and Mr. Mike's Plumbing, Heating & Electrical, and offered a list of budget-friendly installers.

One company was in every list: Reliance Home Comfort, which the model wrote with the city added in two of the three runs. We treat those as the same business, since the added word is the city in the prompt, and note it rather than hide it. Furnace Family appeared in runs 1 and 3, Arpi's Industries Ltd. in runs 2 and 3. The remaining 14 names appeared once.

Run 1 stands apart. It included a national retail chain's heating arm and a generic line about a department store's home services plus local authorized installers, which is not a Calgary company at all. Runs 2 and 3 named only local or regional contractors. A homeowner who asked once could get a list of six local firms, or a list that mixes national brands with local ones, depending on the session.

Every run told the reader to collect two or three quotes and to check Google reviews, the BBB and licensing and insurance. Two runs made a point that a good installer performs a proper heat load calculation rather than replacing like for like, and asked whether the quote includes removing the old furnace, venting, the thermostat and any permit or inspection. Run 1 offered to sort companies by budget versus premium; run 3 offered a list of budget-friendly installers without being asked.

Two runs opened with the same caveat in different words, that the model could not verify live quality or pricing. None of the runs quoted a price, a rating or a review count for any company, and none cited a source.

This page records what one model said across three tries of one prompt on one date with browsing off. It does not verify licensing, insurance, workmanship or reviews for any company, and a name here is not a recommendation from SearchPod or the model. Other models, dates or settings would give other lists.

For an HVAC company, the useful part is what the model rewards: a name written the same way everywhere, service pages that say plainly furnace replacement and the areas served, reviews that mention the job, and a Google Business Profile that is current. The model also volunteered the criteria it thinks matter, load calculations, what a quote includes, permits, so a company whose pages answer those questions is answering the model's checklist before the customer asks. SearchPod tracks answers like these for clients with a fixed prompt panel and reports which prompts name them.