Roz almost paid for a furnace she did not need

Today's Tip: Getting a smart answer from your furnace guy this fall

Most homeowners lose the furnace conversation before it even starts. And it costs them for the next fifteen years.

Let me explain…

My friend Roz Hartwell was standing in her Wichita basement last October when the HVAC technician looked up from her twenty-year-old furnace and said, “You are due.” Roz volunteers as a literacy tutor three afternoons a week, and she has spent her whole adult life helping other people understand words. But in that moment, she did not understand a single word coming out of the technician's mouth.

Efficiency ratings, two-stage burners, variable-speed blowers, return duct sizing. The man was kind and not trying to sell her anything sideways. He was just talking… in his own language. And she was nodding.

She told me later that she agreed to a follow-up estimate on a full replacement without a single question of her own. She spent the next three days feeling like someone was about to hand her a bill for eight thousand dollars for something she could not evaluate.

Then she tried something new. She opened Gemini on her laptop, described her situation in plain language, and asked one very specific thing. Twenty minutes later she had a printed page of questions to ask — questions that were hers, in her words, aimed at her house.

The follow-up visit lasted a little longer than the first. She asked every question on the page. The technician stopped, looked at her, and said, “Okay. You have been doing homework.” And by the end of that conversation Roz knew three things she had not known before… her furnace probably had five more good years in it, the emergency replacement she thought she needed was actually a routine repair, and the package deal she almost said yes to would have installed a unit two sizes too big for her house.

Here is the prompt that made the difference.

Notice what the prompt does not ask for. It does not ask Gemini to tell you what furnace to buy. It does not ask for a price. It does not ask for a recommendation. It asks for something much smaller and much more useful… a printed page of questions.

That is the whole trick. Gemini is not going to fix your furnace. But it is very good at organizing what a curious homeowner should want to know before spending thousands of dollars.

Roz brought her page to the next appointment. She said the technician was clearly a little surprised, then relaxed, then genuinely helpful… he walked her through each question. She did not sign anything that day. And when the written estimate arrived a week later, she had two more questions from her printed page waiting for it.

Now, I know what you are thinking. Something like… “I would feel silly walking into my own basement holding a printed list.” I understand. Nobody wants to look like they are reading from a script in their own house.

But here is the truth Roz figured out. Contractors would rather work with a homeowner who has done a little homework than one who nods at everything and calls back angry a month later. A prepared customer is easier, not harder. The page in your hand is not rude… it is a sign of respect for the person's time and your own money.

The rule of thumb is simple. Any time you are about to sit across from an expert — an HVAC technician, an accountant, a doctor, a lawyer, a car salesman — spend twenty minutes with Gemini first. Not to replace the expert. To meet them halfway.

The best twenty minutes of preparation you can give yourself this fall.

★ Quick Wins

Skill Builder: The Assume-Nothing Prompt

Here is a small habit that will change your relationship with any AI tool. Before you ask the real question, ask the AI to say out loud what it is assuming about you.

Most bad AI answers do not come from bad information. They come from a mismatch. The AI assumed you were younger, or richer, or renting instead of owning, or living in a warm state instead of a cold one. Its answer was technically fine — for someone else. The Assume-Nothing Prompt fixes that.

It works because the AI has to fill in blanks whether you tell it to or not. If you do not tell it your climate, it picks one. If you do not tell it your budget, it picks one. Making those assumptions visible is the difference between an answer meant for you and an answer meant for a stranger.

Use it whenever the stakes are higher than a casual question — before big purchases, before medical decisions, before legal or tax questions, before you rewrite a letter that matters. Save the prompt below and keep it near your keyboard.

Try it on your next question that actually matters and watch what happens. The assumptions come back, and some of them will be wrong… that is the point. You catch the mismatch before it hides inside a wrong answer.

Small habit. Big difference in what you get back.