Home / The Home Whisperer
Plain-talk home HVAC, by Gregory Frazier
Twenty-five years in the field — and a decade writing a homeowner column under the same voice. This is the residential side of the house: comfort, indoor air quality, and the stuff that quietly makes your home work or makes you miserable. No jargon, no scare tactics, no upsell you didn't ask for. Just the answers I'd give a neighbor over the fence.
Same guy, smaller buildings
Most of my day is spent on commercial roofs — that's what the rest of this site is about. But the questions I get most often come from regular homeowners: why is my house clammy, is my air making me sick, do I need a generator, what's living in my attic. So I'm bringing back the column I wrote for ten years, cleaned it up, and pointed it at homeowners across Maryland, Pennsylvania, Delaware, Virginia and Florida.
- Real field stories, not copied-from-a-brochure advice
- Building science explained the way I'd explain it on your driveway
- An honest take on what's worth your money and what isn't
Read these first
Start anywhere. They stand on their own, and I've cross-linked the ones that go together.
Bigger is not better: why an oversized AC makes you miserable
The biggest unit on the block won't cool your house better — it'll leave you cold and clammy. Here's what actually drives comfort.
HealthCan my home make you sick?
Dust, mold, and the chemicals you should never store near your air handler. If you don't test, you guess.
Air qualityIndoor air quality 101: what's your IAQ?
Tight modern homes trap more than heat. Symptoms that clear when you leave the house, and the gear that fixes the air.
HistoryChill out: how we survived summer before AC
Where a "ton" of cooling actually came from, and why an old house with no real AC is a buy-with-caution.
PestsAttic invaders: what to do about rodents up there
Why throwing poison at the problem backfires, the damage they do to your ducts, and the real health risk.
PowerBackup power: picking the right generator for your home
Portable vs. whole-home, why a portable can't run your central AC, and the one rule that keeps you alive.
ComfortControlling humidity: why your house feels like a swamp
Why humid air feels hotter, why right-sizing beats big, and when a whole-home dehumidifier is the real fix.
MythsFact or fiction: 4 AC myths that cost you money
Off-season pricing, bigger units, skipping maintenance, ignoring ducts — four myths, busted.
BuyingI need a new AC — now what? How to hire the right contractor
A homeowner hired cheap and got an oversized unit and unpermitted ducts. Three rules so you don't.
Air qualityDuct cleaning 101: what you're actually paying for
Which duct types can even be cleaned, the $9.95-per-vent scam, and why sealing matters more than cleaning.
MaintenanceFall AC maintenance: give your system some love before winter
The full end-of-season checklist a good tech runs — and why it buys you years of trouble-free comfort.
TechComplete control: what a smart thermostat really does
From mercury bulbs to your pocket — why it beats a basic programmable, and the alerts that prevent no-cool calls.
HeatingHeat it up: how home heating actually works
Heat pump vs. resistance strips, and why that scary burning smell on the first cold night is harmless dust.
BuyingWhat your home inspector missed (and why it'll cost you)
A dream condo hid uncleanable ducts, a rusted AC, and a 23-year-old water heater. Why generalists miss the big stuff.
Stuff I'd put in my own house
No magic boxes, no gadgets that promise the moon. These are the categories that actually move the needle on comfort and air quality. Links are placeholders for now — I only point at gear I'd hand a neighbor.
Pleated MERV 11–13 filters
The single cheapest upgrade to your air. Skip the cardboard fuzz; a good pleated filter catches the fine stuff that makes you stuffy. Just check it monthly.
View options →Smart thermostat
An ecobee- or Nest-class thermostat pays for itself by not cooling an empty house. Bonus: it'll nag you when the filter's due.
Check price →Dehumidifier (whole-home or portable)
In a humid climate, dry air feels cooler than cold air. If your house is clammy at 74°, you've got a moisture problem, not a temperature one.
See options →UV-C air handler kit
A bulb in the cabinet keeps the coil from becoming a mold farm. It's not a cure-all, but it's a cheap insurance policy against the gunk you can't see.
View kit →Indoor air quality monitor
You can't fix what you can't see. A decent monitor flags humidity, particulates, and VOC spikes so you stop guessing about that headache.
Check price →Standby generator
When the grid goes down for days, a propane standby keeps the fridge, the lights, and yes, the AC running. The one upgrade you'll be glad you made mid-storm.
See sizing →Affiliate links — I may earn a commission at no cost to you. See the disclosure in the footer.
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