Get Your Pellet Stove Ready for Winter: Start-Up Checklist

By Walt Hensley · Published September 28, 2026

Before the first fire of the season: confirm the stove got its end-of-season deep clean (if it didn’t, do that first), empty and vacuum any pellets that sat in the hopper all summer, check the vent cap and outside-air inlet for nests, check the door, ash-pan and hopper-lid gaskets, test your smoke and CO detectors, then run a supervised first burn on a mild day using your manual’s empty-hopper start.

The checklist at a glance

Was it deep-cleaned last spring? (Start here)

Harman’s P43 manual calls for cleaning through the season “and at the end of each winter”; Englander wants the stove and flue given “a complete cleaning at the end of the heating season.” If that didn’t happen, stop here and do the full deep clean first. This is the inspection after a summer of sitting, not the cleaning.

And one thing this list doesn’t replace: Harman’s P43, P61 and P-Series -C manuals all recommend the stove be “inspected before use and at least annually by a qualified service person.” The checklist complements that visit.

Step 1 — Empty the hopper before the first fire

Pellets that sat in the hopper all summer have been breathing humid air for months. Harman’s P43 says pellets should stay “in their original sealed bag until ready to use, to prevent moisture,” and that damp fuel “could turn back into sawdust which does not flow properly through the feed system.” PelPro’s PP130 says “damp pellet fuel can clog the feed system,” and its schedule has you empty the hopper and vacuum out what’s left “monthly or as needed.” On Englanders, moisture causes build-up at the mouth of the bottom auger tube that can make the auger “squeal.”

No manual has a fall step that says empty the hopper, so this one is my rule, built on what they do say: summer pellets don’t go into the first fire. With the stove cold and unplugged, scoop them out and vacuum the bottom, where Harman notes fines collect because they don’t flow easily. Owners in humid basements report pellets that swell and lock up the auger; swollen, crumbly pellets and a layer of sawdust are the tell. If the feed still acts up, see the auger and bridging guide.

Step 2 — Check the vent cap and outside-air inlet for nests

Owners commonly find bird, wasp or mouse nests in the cap and the air inlet after a summer off. The manuals back the check:

• Harman (P43, P61): the outside-air inlet cover is there “to keep birds, rodents, etc. out of the pipe.”
• Englander: a blocked flue “from rodents, nests, etc.” is on the list of things that make the vacuum switch stop the feed or shut the stove down with an E-1. The SBI manual also requires a screen over the outside-air termination and says that connection should be inspected at least annually.
• PelPro: removing and brushing out the termination cap, and checking the outside-air kit cap for obstructions, are annual owner tasks.
• Harman also wants grass and leaves kept at least 3 feet from the flue outlet outside.

Some owners plug the vent for the summer to keep critters out. No manual I have covers that, and I don’t recommend it: a forgotten plug means smoke, a carbon-monoxide risk and, on an Englander, an E-1. If yours has one, it comes off before anything else.

My DIY line is a house rule, not something every manual spells out: what you reach from the ground with the stove cold — cap, air inlet, clean-out tee — is yours, and PelPro puts the cap on the owner’s list. Ladder or roof work, vertical runs you can’t reach, and any repair or re-routing go to a certified sweep or NFI technician. More in the chimney cleaning guide; a nest-related E-1 is covered in the Englander E-1 guide.

Step 3 — Burn pot, igniter and the parts that have to be seated

• PelPro PP130: before starting from an empty hopper, confirm the fire pot is properly positioned and the three baffles are secure.
• Englander: before every press of ON, clear burnt and partially burnt ash from the burn pot area and under the wear plate, air holes open — skipping it “can cause smoke-back and serious damage.” The wear plate goes back flat, no ash under it.
• Harman P43: no unburned fuel in the ash pan before lighting.
• Touched a Harman igniter over the summer? The P43 says the hot/cold lead connections are pulled to the rear of the feeder body, not coiled inside the burn pot.

If it won’t light at Step 6, go to the won’t-ignite checklist.

Step 4 — Gaskets: the dollar-bill test

No manual documents it, but owners are consistent about the test: close the door on a dollar bill at several points around the door and ash-pan door and tug. If it slides out with no drag, that section isn’t sealing.

Why bother: Harman’s troubleshooting lists “draft too low because of gasket leak” as a cause of low heat output, and a loose or missing door or hopper-lid gasket as a reason the stove may not feed. Englander adds a habit worth keeping: clear pellet bits off the hopper-lid gasket before closing it. As for replacement, Englander makes it mandatory every year, PelPro says replace gasketing that frays, tears or shows other visible damage, and Harman’s P43 and P61 print no interval. Brand by brand, with part numbers and the cold-stove procedure: pellet stove gasket replacement.

Step 5 — Power, detectors and the boring safety stuff

• Detectors. PelPro: at least one CO detector on each floor, plus a working smoke detector. Harman’s -C manual: a smoke and a CO detector on each floor and a Class A extinguisher within reach. Englander “strongly” recommends a CO detector. A common owner practice is to test them and swap batteries as part of the fall start-up.
• Power. PelPro wants the stove plugged directly into a properly grounded three-prong receptacle, the cord not under or in front of the stove, and a surge protector; Englander “highly” recommends one too. Owners also report missed ignitions from a weak outlet or a light extension cord (it’s in the won’t-ignite checklist).
• Battery backup. If the stove runs on a UPS, test it before the first outage does. Sizing and setup here, and know what your stove does when the power fails.

Step 6 — The first fire: use your manual’s empty-hopper start

You emptied the hopper, so this is a start from an empty hopper — and the manuals have a procedure for exactly that:

(PelPro’s manual separately says priming is only required on the first fire or after a fuel feed alarm; its empty-hopper sequence includes it, so that’s the one shown.) Across all of them: no gasoline, kerosene or lighter fluid, ever (PelPro rules out gels too), and doors and hopper lid closed — Harman’s switches won’t run the auger or igniter with a door open or the lid up.

Then watch it. A common practice among owners, and my recommendation: do this first start on a mild day, before you need the heat, with the stove in sight and your detectors working. Nothing special — run it normally, per your manual, and pay attention.

What’s normal on the first burn — and what isn’t

Normal: PelPro’s start-up notes say smoke may occur in the firebox “but will evacuate.” No manual documents a start-of-season smell, but owners are consistent that dust burning off smells for the first fire or two, then fades. Paint-curing fumes belong to a new stove’s first burns (PelPro ties them to the first start-up; Harman’s P43 to the first few hours of burning), not to a stove’s second winter.

Not normal: a smell that lingers once the stove is at temperature, or visible smoke in the room. Don’t write either off as dust — stop and go through the smoke-smell guide.

Keep three “unplug” cases apart:

1. Shutting down: never pull the plug. Harman says it stops the combustion blower and smoke escapes through the gaskets; Englander prints the same warning. Use OFF.
2. Maintenance: normal shutdown, completely cold, then unplug — PelPro adds that the exhaust blower must be off first.
3. Englander pushing smoke into the room: don’t open the door or hopper and don’t unplug it. Open outside doors and windows and wait at least an hour for the smoke to clear. If the power hasn’t failed, press OFF and call Englander support before restarting; after a power failure, the manual has its own restart steps.

Codes you might meet on day one: Harman 5 blinks = failed to light within the 36-minute start cycle (Igniter AUTO mode only) → Harman 5 blinks. PelPro 4 red blinks = missed ignition → PP130 codes. Englander E-2 = fail to start → classic 25-PDV or SBI 25-PDVC; an E-1 right after summer points back to Step 2.

Pellets for the season

Harman and PelPro both recommend PFI-certified fuel and trying a few brands before buying by the ton; store bags dry, sealed and outside your stove’s clearances. And if you still hear that hardwood pellets always give more heat: Harman’s P43 sorts fuel by ash content and grade, not species. It lists softwoods among the lower-ash materials and says premium-grade pellets give the highest heat output. The softwood vs hardwood breakdown has the rest.

FAQ

When should I start my pellet stove for the season? No manual gives a date. Do this checklist and a supervised first burn before the first real cold snap, while you can still wait for a part or a technician.

Why does my pellet stove smell the first time I turn it on? Owners consistently report dust burning off for the first fire or two, fading after that. A smell that persists at temperature, or visible smoke, isn’t dust — treat it as a leak.

Do I need a professional inspection every fall? Harman recommends inspection “before use and at least annually,” and the P43 strongly recommends professional cleaning and service every year, venting included. This checklist complements that visit; it doesn’t replace it.

How long should the first start take? Harman’s P43, in Igniter AUTO mode, allows a 36-minute start cycle before it gives up with 5 blinks; PelPro says allow up to 20 minutes. Englander’s 13 minutes is its igniter start-up cycle, and the other times in its manuals belong to other phases and faults, so watch for E-2 rather than the clock.

Walt Hensley — Walt Hensley is the pen name of Pellet Owner’s editor. I’m not an NFI-certified technician, and I don’t sell stoves, pellets, or parts. Every guide here starts from the manufacturers’ owner’s and service manuals, is cross-checked against what owners consistently report, and says which is which — including what you can safely check yourself and when it’s time to call a certified technician.