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Fall & Winter Edition · For US Homeowners

Before The First Cold Night, Do This.

Shut your AC down without hurting the compressor, fire your furnace up safely, and know what your CO alarm will and won't catch. 36 field notes for the fall changeover — every one ending with its source — plus the buying guide and the bundle-exclusive contractor-defense book.

36sourced fall field notes
24 hthe restart rule most owners never hear
Choose Your Guide Best Value Get All 3 Fall Changeover (Vol. I) + Field Manual (Vol. II) + Contractor Defense (Vol. III) $220.97$97 Fall Changeover Manual Vol. I — new fall edition: AC shutdown, furnace start-up, CO $55.99$34.99 Field Manual Vol. II — which brands to buy, which to avoid $84.99$49.99

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Look inside The Fall Changeover Field Manual, Volume I
New · Vol. I · Fall Edition

The Fall Changeover Field Manual (Vol. I)

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Shut the AC down right. Fire the heat up safely. Before the first cold night.

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  • Why flipping the outdoor breaker off for winter can cost you a $1,200-2,800 compressor — and the 24-hour rule from the installation manual
  • The cover question settled with what Trane and Carrier actually say
  • The five-minute furnace test that turns a 2 a.m. emergency call into a $20 part
  • The flame sensor: what it really does, and how to clean it without wrecking it
  • Why a standard CO alarm can stay silent for 4 hours at 70 ppm — by design (UL 2034)
  • The temperature-rise test you can do with two $10 thermometers

+ 30 more field notes inside ↓

Want the buying guide and the bundle-exclusive contractor-defense book too? See the bundle price below

Look inside The Homeowner's HVAC Field Manual, Volume II
Complete Field Manual

The Homeowner's HVAC Field Manual (Vol. II)

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Beat the brands, dodge the scams, and keep your system alive for 20 years.

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  • The Lifetime List: the only 5 brand families still worth your money
  • The Blacklist: 7 names techs quietly refuse to install
  • The hybrid retrofit that cut one $19,000 quote to $6,200
  • The $5 filter rule that prevents a $2,400 frozen-coil repair
  • The 12-year death clock — why your AC's real lifespan isn't what installers tell you
  • The $99 tune-up decoded minute by minute, plus the question that ends the scam

+ 2 more inside the book ↓

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Best Value · All 3 Guides
Look inside All three Exposi field dossiers: the Fall Changeover Field Manual, the Homeowner's HVAC Field Manual and the bundle-exclusive Contractor Defense Field Manual
The Complete Field Dossier

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All three dossiers — including Vol. III, the bundle-exclusive book sold nowhere else.

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This One Purchase Includes All 3 Books
✓ The Fall Changeover Field Manual (Vol. I)$55.99
✓ The Homeowner's HVAC Field Manual (Vol. II)$84.99
✓ The Contractor Defense Field Manual (Vol. III) $79.99BUNDLE EXCLUSIVE

The Contractor Defense Field Manual is never sold on its own — the only way to get it is in this bundle. All three PDFs are delivered together, instantly, from one checkout. Its $79.99 above is its value inside the bundle, not a separate charge — it's what makes up the rest of the $220.97 combined price alongside the other two books' list prices.

  • The red-tag playbook — what a cracked-heat-exchanger call actually requires, right when heating season starts
  • The 5-move scam script — spot it mid-conversation, before you sign anything
  • The $500,000 case that exposes exactly how the refrigerant markup con works
  • The $5,000 Rule — how to run three competing quotes against each other and win

The changeover, month by month — all in the fall manual

  1. SeptemberTest-fire the furnaceWatch it light on a mild afternoon, not at 2 a.m. (Part 2)
  2. OctoberPut the AC to bedOff "Cool", power left on, the cover question settled (Part 1)
  3. Dec – FebCO, venting & comfortClear pipes, alarms that work, humidity by the thermometer (Parts 3-6)
  4. MarchThe spring restartPower on 24 hours first, check for nests (Part 7)
Sourced, Not Guessed

Every Field Note Ends With Its Source

We read roughly 160 homeowner comments under this season's biggest fall HVAC videos, then checked every answer against installation manuals, safety standards and government data. Where manufacturers disagree, the book says so.

Carrier installation manualsGoodman installation manualsCopeland TraneAprilaireUL 2034NFPA 715NFPA 720 U.S. Dept. of EnergyEnergy StarCPSCCDCACHR News
"On units with a crankcase heater, supply power to the heater for a minimum of 24 hours before starting the unit." — that's why Field Note 03 tells you to leave the breaker on all winter. SOURCE: Carrier 24ANA / 27SPA6 installation instructions; Copeland answer 3019 (12-hour minimum).
From The Investigations

What This Information Is Worth

Every entry in these guides starts the same way: a homeowner's system, a contractor's quote, and a number that didn't add up. We cross-check the claim, then write down exactly what changed the outcome — no theory, just the fix and the figure.

Case File

"Three contractors quoted $14,000 to $19,000 for a full replacement. Three weeks of research later: a variable-speed retrofit on his existing ductwork for $6,200."

Richard, 72 · Houston, TX · Part 4: The Hybrid Retrofit
Saved $12,800

From our published investigation, not a customer review.

Case File

"He bought the $30 'allergen defense' filters and changed them on schedule. Two years later: frozen coil, dead blower motor, a $2,400 bill caused by the filter."

David's system · Part 5: The MERV Lie
$2,400 repair, preventable for $5

From our published investigation, not a customer review.

Case File

"26 years running his own shop. Gets called twice a week to install units homeowners bought online. His answer is always no, and his blacklist is in this book."

Marcus · Phoenix, AZ · Part 3: The Blacklist
7 brands to avoid

From our published investigation, not a customer review.

Case File

"His evaporator coil looked like Swiss cheese after six years. The tech's verdict: 'this is normal now.' The coil chapter explains why, and which designs don't rot."

Arizona homeowner · Part 1: The Coil Downgrade
Avoids a $5,000 repeat

From our published investigation, not a customer review.

Case File

"A $99 tune-up, 22 minutes, 15 scary photos, and a financing tablet. One question ended the entire performance: 'are you paid commission?'"

The tune-up script · Part 7: Scam Defense
$10,000 pitch declined

From our published investigation, not a customer review.

Cases documented in our published investigations. The full stories and numbers are in the manual.

How we source this: every brand claim, price, and repair figure is cross-checked against documented class-action filings, EPA regulatory records, Consumer Reports reliability data, and field reports from independent, non-sponsored HVAC technicians, not manufacturer marketing.

Real Pages, Not Mockups

See Inside The Books

Fall Changeover Field Manual
The Fall Changeover Field Manual, Volume I Page from The Fall Changeover Field Manual showing the UL 2034 carbon monoxide alarm exhibit

Part 4 · “Why Your CO Alarm Stays Quiet — By Design” — the UL 2034 time windows, charted, with the source underneath.

Homeowner's HVAC Field Manual
The Homeowner's HVAC Field Manual, Volume II Page from The Homeowner's HVAC Field Manual showing the Lifetime List brand entries

Part 2 · “The Lifetime List” — named brand families, what to actually spec, and why.

Contractor Defense Field Manual
The Contractor Defense Field Manual, Volume III Page from The Contractor Defense Field Manual showing the parts markup exhibit chart

Part 3 · “The $20 Part With A $467 Invoice On Record” — the fair price, charted next to what got billed.

3 Guides · 21 Parts · 108 Field Notes

What's Inside

The Fall Changeover Field Manual (Vol. I)52 pages · 7 parts · 36 field notes

PART 1

Putting the AC to Bed

Off "Cool" before the nights turn cold, the cover question settled with manufacturer quotes, the crankcase heater and how to tell if you have one, mice, and why heat pump owners do the opposite.

PART 2

The Five-Minute Furnace Test

The start-up sequence step by step, the blinking light you read before you reset, the flame sensor, the igniter, standing pilots, and the first-run smell that's normal (and the ones that aren't).

PART 3

Air, Exhaust and Water

The two white pipes and the snow line, the condensate trap that shuts furnaces down in January, the pressure switch, the chimney spillage check, closed vents, filters and the blower.

PART 4

Safety You Don't Get to Skip

What UL 2034 lets a CO alarm ignore, where alarms belong, the gas-smell protocol and NFPA 715 gas detectors, flame color, and the space-heater and generator rules.

PART 5

Measured, Not Guessed

The temperature-rise test you can do yourself, the one sentence for the technician, the spare-parts shelf, and an honest look at old vs. new furnaces.

PART 6

Comfort and Cost All Winter

Why 70 feels cold, the humidifier set by the thermometer outside, setback that saves (and the heat-pump exception), and the $20 draft fixes.

PART 7

The Spring Restart

Waking the AC back up without hurting it: nests, the 24-hour rule, and the first cooling run.

BONUS · REFERENCE

Print. Tape. Use.

Quick index, the Saturday plan, fall and spring checklists, troubleshooting table, the Ask-the-Tech card, glossary, myths, and every source.

The Homeowner's HVAC Field Manual (Vol. II)42 pages · 7 parts

PART 1

The Rigged Market

Three corporations own your "choice", the 12-year death clock, the coil downgrade, and the oversizing racket.

PART 2

The Lifetime List

The five brand families still worth your money, and exactly which tier of each to buy.

PART 3

The Blacklist

Seven names experienced technicians refuse to install, from "the fountains" to orphan inverter imports.

PART 4

The Six Loopholes

Hybrid retrofit, downsize & dehumidify, incentive stacking, the $300 insurance policy, and the supply-house recon.

PART 5

Filters & Airflow

The MERV lie, what to actually buy for $5, and the media-cabinet upgrade that gives clean air without the damage.

PART 6

The Refrigerant Game

Four gases, four bans, one pattern, and how to never panic-buy a system over a phase-out headline.

PART 7

Scam Defense

The $99 tune-up decoded minute by minute, three fake diagnoses, and the one question that ends the game.

BONUS · REFERENCE

Print. Tape. Use.

Troubleshooting table, savings table, two defense checklists, seasonal calendar, toolkit list, and a repair log.

The Contractor Defense Field Manual (Vol. III)50 pages · 7 parts · Bundle-Exclusive

PART 1

Anatomy of a Scam Call

The five-move script behind almost every inflated repair call, the renamed-part trick, and the one credential the law actually requires.

PART 2

The Refrigerant Con

Why "it just needs refrigerant" should raise your guard, the markup hiding in every pound, and the $500,000 case that proves it.

PART 3

The Parts Markup Playbook

The $20 part with a $467 invoice on record, fair overhead vs. pure markup, and how to replace your own capacitor safely.

PART 4

The "You Could Die" Play

Why the cracked-heat-exchanger scare works so well, the test that misses up to 80% of real cracks, and what a red tag actually requires.

PART 5

The Free Inspection Funnel

The math behind every "free" visit, the seven-move energy-audit script, and the Manual J question that stops an oversell.

PART 6

The Warranty Fine-Print Trap

The 60-90 day registration cliff, parts-only coverage, and the excluded parts that fail first.

PART 7

The Negotiation Playbook

The $5,000 Rule, the second-opinion script, and how to run three competing quotes against each other.

BONUS · REFERENCE

Print. Tape. Use.

The fair-price lookup table, a before-you-sign checklist, a red-flag checklist, and a quote log to fill in at the door.

Exposi
Who's Behind Exposi

We Investigate So You Don't Get Burned

Exposi started as a YouTube channel digging into the HVAC industry from the outside — the brands that quietly fail early, the tune-up scripts built to upsell, the parts marked up for no reason. What we kept finding is now written down in these field dossiers, so you don't have to watch hundreds of hours of investigations to get the short version.

We take no brand sponsorships and sell no HVAC equipment ourselves — every claim is cross-checked against class-action filings, EPA records, and field reports from independent technicians, not manufacturer marketing.

We write for homeowners who don't want to become HVAC experts — just informed enough that no one can talk over them at the door. That's first-time buyers, anyone running an aging system on a budget, and readers in their 60s and 70s who want this whole fight settled in one conversation, not five.

Before You Ask

Questions, Answered

The Fall Changeover Field Manual is about right now: shutting the AC down for winter without hurting it, starting the furnace safely, and the CO, venting and comfort questions of the cold months. The Field Manual is about the buying decision: which brands still last, which ones techs blacklist, and how to avoid a $10,000 mistake. The Contractor Defense Field Manual is about the moment a technician is in your driveway — including the red-tag call that spikes every heating season; it's the bundle-exclusive third book, never sold on its own. None of the three overlap.

Usually not — and never a heat pump. Trane says covering isn't necessary; Carrier warns plastic covers trap moisture. If ice or debris falls from above, a top-only shield is reasonable. Field Note 02 has the full answer and Field Note 07 the heat-pump rules.

On most systems, leave it on. Many compressors have a crankcase heater, and Carrier's installation instructions require it to be powered at least 24 hours before start-up. Field Notes 03 and 04 explain why, and how to tell whether your unit has one.

Not necessarily. Alarms tested to UL 2034 may take up to 240 minutes to sound at 70 ppm and must stay quiet at 30 ppm for 30 days. Field Note 23 explains what that means and what to do about it.

We're an independent research channel, not a manufacturer or a contractor. We take no brand sponsorships and sell no HVAC equipment, so there's no side we're paid to favor. Every claim in these guides is cross-checked against documented class-action filings, EPA regulatory records, Consumer Reports reliability data, and field reports from independent, non-sponsored HVAC technicians — not marketing copy. If a source can't back a claim, it doesn't go in the book.

Yes. The fall manual covers central AC with a gas furnace (80% or 90%+), heat pumps, and older standing-pilot furnaces, with a quick index that tells you which notes apply to your house. The Field Manual covers buying right when a system finally dies. US market focus. Hot-water boilers and oil burners are outside the fall manual's scope.

Usually on the first service visit. Declining one mispriced capacitor swap covers the book several times over, and the filter chapter alone saves $220+ a year. The big plays, like a retrofit instead of a full replacement or a second opinion on a red tag, are four-figure swings.

It's written for exactly you. No tools and no technical background needed. Every entry is a real situation, a fix, and the exact words to say to a technician. That doesn't mean it's simplified: every claim behind it is still cross-checked against EPA filings, class-action records, and licensed-technician reports. You just don't have to read those yourself.

Yes. If anything, this is who it was written for. No tools, no crawling in the attic, nothing physical at all. Every entry is a situation and the exact words to say to a technician, printed large enough to hold at the door. If you can read a paragraph and ask a question out loud, you can use this book.

The parts most people never find: the supply-house recon method for finding honest techs, the Bosch 24V retrofit loophole, capacitor tolerance math, and the refrigerant patent cycle. It's the stuff that lives in technician forums, organized.

Instant download, PDF (or all three PDFs if you buy the bundle), readable on any device and printable (the checklists are made for it). Secure checkout via Paddle; your download page opens immediately after purchase, plus a receipt by email. Didn't land on the download page? Just recover it by email here - no need to wait on us.

14 days, full refund, no questions asked. If a guide doesn't earn its price, reply to your receipt email and say so — same policy whether you bought one guide or the bundle. No forms, no explanation required. Full policy here.

The First Cold Night Is Coming. The 2 A.M. Repair Call Is Optional.

108 field notes · 3 guides, 1 bundle-exclusive · 144 pages combined · every fall note sourced

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