As the leaves start to fall and the crisp autumn air rolls in, it’s time to start thinking about turning on your furnace. It’s something many of us take for granted, but that first blast of heat can bring a few surprises. Knowing what to expect can help you avoid stress and ensure a smooth transition into the colder months.

Here’s a quick guide on what to expect, and a few tips to help you prepare for a warm and cozy season.

What to Expect

1. Expect Some Odd Smells – But Don’t Panic!

When your furnace kicks on for the first time, you might notice a distinct smell. It’s usually nothing to worry about! During the off-season, dust and debris can settle in your system. When the heat turns on, that dust burns off, causing a musty odor. This smell should disappear within a few hours.

However, if you notice a persistent or strong gas odor, that’s a different story. Turn off your furnace immediately and contact a professional—it could be a sign of a gas leak or other serious issue.

2. Strange Noises Are Normal—To a Point

Furnaces can be a bit noisy when they first start after months of sitting idle. You might hear pops, bangs, or even a low hum as the system gets up to speed. These sounds are normal, especially during the first few cycles.

That said, if you hear anything unusually loud, such as screeching or grinding noises, it could be a mechanical issue. Don’t ignore it—schedule a professional inspection to ensure everything is running smoothly.

3. Don’t Be Surprised by Uneven Heating at First

If some rooms are warmer than others when you first turn on your furnace, don’t worry. It takes a bit of time for the heat to circulate evenly throughout your home. After a few heating cycles, the temperature should balance out.

Still feeling cold spots after a few days? It could be a sign that your ductwork needs cleaning or sealing. A professional can help identify and fix the problem to ensure consistent comfort.

4. Don’t Be Shocked by Your First Energy Bill

It’s inevitable—your energy bills will increase once you start running your furnace regularly. But a sudden spike could mean your system isn’t running as efficiently as it should. If you notice a big jump, it might be time to schedule a furnace tune-up or inspection. Issues like dirty filters, blocked vents, or mechanical problems can make your furnace work harder than necessary, driving up costs.

Tips to Prepare

1. Check or Change Your Air Filter

Your furnace’s air filter is critical to its efficiency and performance. Before firing up your system, check the filter. If it’s dirty or clogged, it’s time for a replacement. A clean air filter ensures better airflow, helps your furnace run efficiently, and improves the air quality in your home.

Pro tip: Make a habit of checking your filter every month throughout the season. Regular filter changes can extend the life of your furnace and lower your energy bills.

2. Test Your Carbon Monoxide Detectors

If you’re using a gas furnace, safety comes first. Carbon monoxide (CO) is a silent killer—it’s odorless, colorless, and dangerous in high concentrations. Before turning on your furnace, test your CO detectors to make sure they’re working properly. Replace the batteries if needed and check that the alarms are in good condition.

Peace of mind comes with knowing you’re protected against any potential hazards.

3. Give Your Vents and Ducts a Once-Over

Before you rely on your furnace for full-time heat, walk through your home and inspect your vents. Make sure they aren’t blocked by furniture, rugs, or curtains. Obstructed vents make it harder for your furnace to do its job, leading to higher energy costs and uneven heating.

This is also a good time to peek at your ductwork. Look for any visible gaps or damage that could be causing air leaks.

4. Schedule a Professional Tune-Up

Want to avoid mid-season breakdowns or expensive repairs? The best time for a professional furnace tune-up is before the weather gets too cold. A qualified technician will inspect your system, clean essential components, and make any necessary adjustments to keep your furnace running at peak performance.

Routine maintenance not only prevents unexpected issues but can also extend the life of your furnace and improve energy efficiency—saving you money in the long run.

Ready for a Cozy Season? We’ve Got You Covered!

Turning on your furnace for the first time this season doesn’t have to be a guessing game. With a little preparation and awareness, you can keep your home warm and worry-free all season long. If you notice any issues or need a professional tune-up, our team at Mattex is here to help!