Furnace & heating repair
Heating in Memphis works hard for a few weeks and stands idle for the rest of the year, which is exactly why the first genuinely cold morning is a citywide event. The furnace that got a fall visit simply works; the one that did not gets discovered in December, from the back of the longest queue of the year.
What idleness leaves behind
The usual suspects are small and quick: a flame sensor filmed with oxide that shuts the burner down seconds after ignition, dust on the burners that announces itself as a first-evening smell, a pressure switch reading a flue that hosted something over the summer, an ignitor at the end of its cycles. A technician working the sequence of operation finds these in under an hour, and none of them condemns anything.
Heat pumps are common here too, and they hide their winter troubles well: the electric backup strips quietly carry a failing unit while the house stays warm and the meter runs. A January bill far above the neighbours’, in a house that feels perfectly comfortable, is a service call written in kilowatt-hours — and it is the only symptom you will get.
The safety side, said plainly
On gas equipment the annual look is combustion maintenance rather than comfort maintenance: the heat exchanger inspected, the burners cleaned, the venting verified. A cracked exchanger is rare, serious, and exactly the finding a serious shop documents — the crack on camera, the combustion numbers in the report — instead of asking anyone to accept a condemnation on faith. Working carbon monoxide alarms belong in every gas-heated home as plain practice; that sentence is safety, not salesmanship.
The calendar rule mirrors cooling, inverted. October is when the heating side gets attention on an open schedule, parts on the shelf and a technician who is not being paged. A mild-winter city is a place where maintained furnaces last decades — the machine is not fragile, it is forgotten, and one fall appointment a year is the whole difference.
Quick answers
- Why does the furnace fail on the first cold night?
- Nine idle months plus the first real demand is precisely when a fouled flame sensor, a tired ignitor or a blocked flue announces itself. It is the most predictable date on the heating calendar — and the busiest.
- My house is warm but the winter bill tripled — what is that?
- On a heat pump, usually the electric backup strips carrying a unit that is no longer pulling its weight. Comfort stays normal while consumption multiplies, so the bill is the symptom and the only one you get.
- 1 Thermostat — The season’s odometer — a hundred cooling days pass through it.
- 2 Return and filter — The lungs, and the first thing a retrofit house sized too small.
- 3 Air handler and furnace — Up in the attic, asleep nine months, asked for everything in December.
- 4 Coil and condensate drain — Litres of river-valley moisture a day, leaving through one narrow line above your ceiling.
- 5 Attic ducts — The coldest air in the house, commuting through the hottest room on the property.
- 6 Outdoor unit — Full sun, full load — where August culls capacitors by the thousand.