The right week to winterize your home in Minnesota is the one before you need the furnace, not the one after.
Fall in the Northland Is Shorter Than It Feels
Every year the list gets pushed to a weekend that never quite arrives, and then one cold night in October turns all of it urgent at once. The hose bibs, the filter, the drafty window, the furnace that made a funny noise last March. All of it, at the same time, on the day it stops being optional.
The constraint is simple. September is still warm enough that you can run the furnace, find a problem, and book a service call like a normal appointment. October usually is not, because by then everyone else has discovered the same problem on the same night.
Why This List Matters More in the Northland
Twin Ports housing stock is older than most, and older houses lose heat at the rim joist, the sill plate, and the windows long before they lose it anywhere else. Those are also the three easiest places to fix in an afternoon. If your older home runs on radiators instead of registers, boiler service for older homes follows the same September logic.
Your furnace has not run since April. That is five months for dust to settle on the flame sensor and in the burner compartment, which is exactly the residue that causes a unit to fire, run briefly, and quit.
Wind off the harbor means the exposed side of the house behaves nothing like the sheltered side. The bedroom on the lake side of a Duluth hillside home will always be the first one to feel it.
Doing the heating items first is the whole strategy. A problem found in September is a scheduled visit. The same problem found in January is an emergency call at a bad hour.
What You’ll Need
- A furnace filter in the correct size for your unit
- A flashlight
- A screwdriver and a pair of pliers
- Weatherstripping or rope caulk
- An insulated cover for each outdoor hose bib
The Steps, in the Order That Matters
1. Run the furnace for twenty minutes now, on a warm day, and stand near it while it works. You are listening for a clean ignition, a steady burner, and no burning smell past the first minute or two. A brief dusty smell at startup is normal. Anything past that is a September service call instead of a January emergency, and it is the single most valuable twenty minutes on this list.
2. Put in a fresh filter, then walk the house and check that no return grille or supply register is blocked by furniture, a rug, or a curtain. Restricted return air is the most common reason a furnace shuts itself off early, and it is free to fix.
3. Shut off the interior valve for each outdoor hose bib, open the outside spigot to drain the line, then cap it. Do this before the first hard freeze rather than after the forecast changes, because a split line behind a wall does not announce itself until spring. Our plumbing services cover the hose bib and water heater side of this list.
4. Seal the leaks you can actually reach. Rim joist gaps, the sill plate, the gap around the dryer vent, and any storm window that did not seat right last spring. You do not need to find every leak in the house. The obvious ones are most of the loss.
5. Clear the intake and exhaust vent paths outside. High efficiency furnaces vent through the wall, usually low, and a blocked termination is a shutdown waiting to happen once snow starts drifting against the foundation. Note where they are now so you can find them in February.
6. Set the thermostat schedule for heating and reverse the ceiling fans to push warm air back down. Check the thermostat batteries while you are standing there.
Hit something on this list you would rather not touch? Call Advantage Air Plumbing, Heating and Cooling at 715-817-4404 and we will handle it.
When to Stop and Call Advantage Air
Anything involving gas, venting, or the burner compartment is a technician job. That is not a limit on your ability, it is a limit on what is safe to do without combustion analysis equipment.
Stop and call if you get a burning smell that does not clear, a furnace that will not stay running, water anywhere near the furnace or water heater, or a carbon monoxide detector that sounds. A furnace that fires and quits repeatedly is worth reading about in our post on what short cycling means if the furnace will not stay running before you decide it is nothing.
We are family owned in Superior since 2014, our techs are EPA 608 and NATE certified, and we run emergency HVAC service around the clock. Every estimate is written and covers parts and labor before any work starts. Call 715-817-4404. We serve Superior, Duluth, Hermantown, Proctor, Cloquet, Two Harbors, and the surrounding Northland.
FAQs About Getting Ready for Winter
Q: Is September too early to run the furnace?
A: No, and running it early is the whole point. You want to find the problem while a service visit is still a scheduled appointment. Expect a brief burn-off smell as summer dust cooks off the heat exchanger, and expect it to clear within a few minutes.
Q: Should I cover my outdoor AC unit for winter?
A: A full wrap traps moisture and invites rodents into the coil. A cover over the top, to keep falling ice off the fan, is the usual advice. Skip it entirely if that outdoor unit is a heat pump, because it needs to run all winter.
Q: What does a furnace tune up actually include?
A: Burner and heat exchanger inspection, flame sensor cleaning, blower and airflow check, safety controls tested, and venting checked. The point is finding the root cause of anything odd rather than the symptom, plus an honest recommendation on repair versus replacement.
One Call Now Beats a No Heat Night in January
Book the furnace check while the calendar is still open. Call Advantage Air Plumbing, Heating and Cooling at 715-817-4404 or request furnace repair across the Twin Ports online. We take $50 off any repair over $500, and financing runs 0% APR for 60 months on qualifying systems.
