As winter draws near, ensuring your home remains warm and cozy becomes essential. The furnace is the core of your home heating system, but many homeowners have questions about how it works. Addressing these questions can greatly affect the system's efficiency and lifespan. In this blog post, we will address four common furnace questions, providing you with the knowledge to keep a comfortable environment during the colder months.

How Long Can I Expect My Furnace to Last?

The lifespan of a furnace can vary widely, influenced by several factors such as its type, maintenance history, and local climate. On average, a well-maintained furnace lasts between 15 and 30 years. For example, if you have an oil furnace, you might expect a lifespan closer to 20 years, while gas furnaces often last about 15 years.

Regular maintenance is key. Conducting annual check-ups and making timely repairs can extend your furnace's life. Consider this: if your furnace approaches 15 years of age and starts to show signs of inefficiency, like longer heating times or rising repair costs, it might be time to look into replacement options to avoid more significant problems down the line.

What Size Furnace Do I Need for My Home?

Now if you do decide to replace your furnace, choosing the right furnace size is crucial for efficiency and comfort. An undersized unit will struggle to maintain warmth, while an oversized one can lead to short cycling—turning on and off frequently—which increases wear and reduces overall lifespan.

To find the right size, consider factors like your home's square footage, the number of windows, insulation quality, and local climate. Our technicians at Airtech can perform an accurate load calculation to help you select the best furnace for your needs.

When Should I Change My Furnace Filters?

Changing your furnace filters is vital for good air quality and energy efficiency. Check your filters monthly and replace them every 1 to 3 months. For instance, if you have a high-efficiency pleated filter, swapping it out every three months is common, while disposable fiberglass filters should be replaced monthly.

If you own pets, have allergies, or live in a dust-prone area, you may need to change your filters more often. A clogged filter can reduce airflow, making your furnace work harder. This not only raises your energy bills—by as much as 15%—but it can also lead to potential breakdowns. Staying on top of filter changes ensures cleaner air and a more efficient heating system.

Why Is My Furnace Running Loud?

Hearing unusual sounds from your furnace can be concerning. Common culprits of noise include:

• Loose components: Parts may vibrate or rattle over time, leading to distracting sounds.

• Dirty burners: Clogged burners can create popping or banging noises during ignition.

• Ductwork issues: Poorly sized or obstructed ducts might result in whistling noises.

  
  

If your furnace is excessively loud, it's wise to consult our team at Airtech. Ignoring these sounds can lead to more significant issues, like reduced efficiency or even system failure.

Final Thoughts

Being informed about your furnace can lead to improved comfort during winter. By knowing the expected lifespan of your furnace, when to change filters, what noise might mean, and how to determine the right size furnace, you'll ensure that your heating system operates effectively.

As winter draws near, take the opportunity to assess your furnace and make necessary adjustments or repairs. A well-maintained furnace is essential not just for warmth, but for cost savings on energy bills and a longer lifespan for your heating system!