Few things are better than a pellet stove throwing out cozy heat during a chilly winter night. They’re silent, eco-friendly, and way easier to manage than a traditional

wood stove or fireplace. But here’s the thing: pellet stoves aren’t set-it-and-forget-it devices. They need regular TLC to keep them doing their job safely and efficiently.

Let’s break down why pellet stove maintenance is important—and some easy tips to help you keep yours in great shape all year long.

Why Bother With Pellet Stove Maintenance?

A Clean Stove is a Happy Stove

Pellet stoves burn clean, but not that clean. Over time, ash builds up in the burn pot, the ash pans, the heat exchanger, and the exhaust pipe. Failing to keep on top of that mess makes your stove work harder to produce the same amount of heat. It’s simple: you burn more pellets; you spend more money.

It’s a Safety Thing

Ash buildup and blocked vents aren’t just inconvenient—they’re dangerous. Restricted airflow puts you at risk of smoke backup, reduced efficiency, and a potential fire. Keeping things clean ensures your stove runs safely.

Longer Lifespan

A well-maintained pellet stove can last 15-20 years. Neglect it and you’ll be replacing expensive parts or the whole stove way sooner than needed.

Maintenance Tips to Keep Things Humming

Daily or Weekly: Clean out the Ash

Depending on how often you use your stove, ash can build up fast. Some stoves need a quick cleaning every day; others can go a few days to a week. Start by:

• Emptying the ash pan
• Cleaning out the burn pot (a clogged burn pot = weak flame)
• Wiping down the glass doors for a clear view of the fire.

Remember to let the stove cool fully before cleaning. Safety first!

Vacuum the Inside

Every week or two, take a shop vac (ideally one made for ash) and vacuum out the firebox, behind any panels, and around the fans. Don’t use your regular home vacuum cleaner because it’s not built for ash and could get ruined.

Check and Clean the Heat Exchanger

The heat exchanger transfers heat from the fire to your home. When it gets covered with soot and ash, it can’t do its job well. Use a brush to scrub it down or check the stove’s manual for levers or rods you can move to clean it.

Inspect the Gaskets

The door and ash pan gaskets keep air from leaking into the stove. If they’re cracked or worn out, your stove’s efficiency takes a hit. Give them a once-over every month and replace them if they look rough.

Don’t Forget the Hopper

Pellets leave behind dust called fines that clog things up. Every few weeks, empty the hopper and vacuum up leftover dust. Clean pellets = smoother feeding and a better burn.

Give the Vent Pipe Some Attention

At least once a month (or more if you’re burning a lot), check the exhaust pipe for ash and soot buildup. A blocked vent can cause serious issues. Some homeowners do this by themselves, but others schedule a pro. Either way, don’t skip it.

Schedule a Professional Cleaning

Even if you stay on top of regular cleanings, it’s smart to have a professional chimney or fireplace technician give it a once-over and a deep cleaning at least once a year. They’ll clean hard-to-reach areas and check the sensors, fans, and electrical components to ensure efficiency.

Pellet stoves are fantastic—no chopping wood, no lugging logs, and way less mess. But they do need a little love now and again to keep them running safely and efficiently.

Contact Keystone for expert pellet stove maintenance, chimney cleaning, or repairs.