The first cool evening of the season has a way of making a fireplace feel irresistible. But before you strike a match and settle in, it’s worth giving your fireplace and chimney a quick, practical once-over. A little attention now can help your fire burn cleaner, draft better, and reduce the risk of smoke, odors, or worse—chimney fires.
Here are the key areas to check before your first burn, including the damper, the hearth, and four other things that are easy to forget once warm weather arrives.
1) The damper: confirm it opens, closes, and actually moves freely
The damper is the metal door (or set of doors) that opens to let smoke exit up the flue and closes to reduce drafts when the fireplace isn’t in use. It’s one of the most common “why is my living room smoky?” culprits because it’s easy to forget and it can also get stuck.
What to do:
First, locate the control. Depending on your fireplace, the damper may be operated by a lever, a chain, a rotary handle, or a push/pull control. Open it fully and shine a flashlight upward. You should be able to see a clear path into the flue above. Then close it again and confirm it seats properly.
What to look for:
If it feels stiff, gritty, or refuses to move all the way, don’t force it until you know why. Soot buildup, rust, a bent mechanism, or debris can interfere. If the damper is stuck open, you may notice a cold draft or a smoky smell even when you haven’t lit a fire. If it’s stuck closed (or only partly open), you’ll almost certainly get smoke spilling into the room.
Quick reality check: If you can’t confidently tell whether the damper is fully open, pause and get it inspected. Many smoke problems start right here.
2) The hearth and firebox: check for cracks, loose material, and anything flammable nearby
The hearth is the noncombustible area around the fireplace opening; the firebox is the interior “box” where the fire burns. Over the summer, small cracks can widen, mortar can loosen, and people often end up storing décor or baskets a little too close.
What to do:
Clear the area completely—remove candles, baskets, books, blankets, seasonal décor, and anything that could melt or ignite. Then inspect the hearth surface and the firebox walls. Sweep out loose ash and debris so you can see what’s going on.
What to look for:
Hairline cracks in masonry can be common, but gaps, missing mortar, crumbling brick, or loose firebrick inside the firebox deserve attention. The firebox is designed to contain high heat; damaged components can allow heat to transfer to adjacent materials.
Also check the “zone” in front: Keep rugs, pet beds, and floor cushions away from the opening. Even a small pop from a log can send an ember farther than you’d expect.
3) The chimney and flue: confirm it’s clean, clear, and not blocked
From the living room, the chimney can feel like “out of sight, out of mind,” but it’s doing the heaviest lifting. Creosote (a flammable byproduct of burning wood) can accumulate in the flue, and animals or debris can create a blockage—both can affect draft and safety.
What to do:
If you haven’t had your chimney inspected and cleaned in a while, schedule it before regular use. A professional inspection can spot creosote buildup, flue damage, missing caps, and other issues that aren’t obvious from inside the house.
What you can check yourself (safely):
With the damper open, look up with a bright flashlight. You’re not trying to diagnose everything—just noting obvious obstructions, heavy flaky buildup, or signs of moisture. If you see a nest, a mass of leaves, or anything that looks like it’s narrowing the passage, don’t burn until it’s cleared.
Why this matters: A restricted flue can cause smoke to backdraft into the room. Creosote buildup can ignite under high heat. Neither is something you want to discover during your first cozy fire.
4) The chimney cap and exterior: look for water entry, animal activity, and visible damage
It’s easy to focus on what you can see from the fireplace opening and forget what’s happening on the roof. The chimney cap (or top termination) helps keep rain, debris, and animals out, and the chimney’s exterior helps protect the structure.
What to do:
Do a visual inspection from the ground. If you can safely see the top of the chimney (binoculars can help), look for a cap that’s missing, crooked, or damaged. Check for obvious cracks in masonry and any signs of staining that could indicate water issues.
What to look for:
Birds, squirrels, and other critters are drawn to chimneys. Scratching sounds, bits of nesting material, or an unusual odor can be clues. Also watch for signs of water intrusion: damp smells near the fireplace, discoloration, rust on metal components, or white, chalky staining on exterior masonry.
Why it matters: Water and chimneys don’t mix well. Moisture can accelerate deterioration and create odors, and animal nests can block airflow.
5) Smoke and carbon monoxide alarms: test them and confirm placement
Fireplaces change the air dynamics in a home, especially in tightly sealed spaces. Before you burn, make sure your smoke alarms and carbon monoxide (CO) alarms are working and appropriately located.
What to do:
Test every alarm using the test button and replace batteries if needed. If an alarm is past its recommended service life, replace it (the device label usually includes a manufacture date). Make sure you have CO alarms in the right places for your home layout—particularly near sleeping areas.
What to look for:
If you’ve had nuisance alarms in the past when cooking or when the fireplace is used, don’t disable alarms. Instead, reassess placement and ventilation. If a smoke alarm is too close to the fireplace opening, it can trigger even when the fireplace is drafting correctly.
Why it matters: Smoke and CO are the hazards you can’t always sense quickly. Alarms are a simple check that can make a major difference.
6) Your wood and tools: burn the right fuel and set up for a clean start
Even with a perfect damper and a clean flue, the wrong fuel or a messy setup can lead to smoky fires and excessive buildup. Your goal is a hot, efficient burn that drafts well.
Check your firewood:
Use firewood that’s properly seasoned and stored. Wet or “green” wood tends to smolder, produce more smoke, and contribute to creosote accumulation. If your wood pile has been sitting uncovered, check for excessive moisture, rot, or punky pieces that crumble easily. Store firewood off the ground and away from the house to reduce pests.
Avoid burning:
Don’t burn trash, cardboard with heavy inks, glossy paper, treated or painted wood, or construction scraps. These can release unpleasant fumes and can contribute to deposits in the flue.
Inspect your fireplace tools and accessories:
Make sure you have a sturdy fireplace screen (especially important with kids and pets), a poker, tongs, a shovel, and a metal ash bucket with a lid. Check that the screen is stable and that any glass doors (if you have them) open and close properly.
Plan a clean lighting technique:
However you like to build a fire, the principle is the same: start with good airflow and get the fire hot quickly. Use dry kindling and a small amount of fire starter designed for fireplaces (not accelerants like gasoline or lighter fluid). A smoky, struggling fire at the beginning of the season is often a setup issue, not a “bad chimney.”
A few extra “first fire” tips for a smoother season
If you’ve checked the main items above, these small steps can make your first burn noticeably better.
Warm the flue if the house is cold: On the first chilly night, especially if the chimney is on an exterior wall, the flue can be cold and heavy air can resist upward draft. Some people warm the flue briefly (for example, by holding a rolled-up newspaper near the damper area) before lighting the main fire. If you do this, keep it controlled and use caution—your goal is simply to encourage upward airflow.
Open a nearby window slightly if draft is stubborn: Modern homes can be tight. If you notice smoke trying to roll into the room as you light, cracking a window an inch can help equalize pressure and improve draft. If that consistently solves the problem, it may be worth discussing makeup air and ventilation with a professional.
Start small: For the first fire of the season, a smaller, hotter fire is often better than overloading the firebox. It lets you observe draft and smoke behavior without creating a big mess if something isn’t quite right.
Never leave the first fire unattended: You’re essentially doing a “systems check.” Stay in the room, keep kids and pets back, and watch for any unusual smoke smell, poor draft, or sparks escaping the opening.
When to stop and call a professional
Some fireplace issues are simple—like moving a basket too close to the hearth or realizing the damper was closed. Others are not DIY territory.
Hold off on burning and get help if:
You can’t open the damper fully, you see signs of an obstruction, you smell strong smoky odors when the fireplace isn’t in use, you notice water damage around the fireplace, or you see crumbling materials in the firebox. Also get the system checked if smoke regularly enters the room, if you notice unusual noises from the chimney, or if anyone in the household experiences headaches or nausea during or after fires (which can be a sign of indoor air quality problems).
A fireplace should make your home more comfortable, not introduce uncertainty. A quick pre-season check—especially of the damper, hearth, and chimney condition—sets you up for safer, cleaner fires all winter.
One last reminder: Keep a fully charged fire extinguisher accessible (not hidden behind décor), and make sure everyone in the family knows basic fire safety—like staying back from the opening and never touching fireplace tools while a fire is burning.