We know that keeping your home warm, quiet, and safe is a priority. Here are some key signs that indicate it might be time for a furnace upgrade.

Most furnaces have a lifespan of around 15 to 20 years. If your furnace is approaching or exceeding this age, it may be running less efficiently and could be at risk of breaking down. You can find the age of your equipment by checking the name plate, and if it's not visible there, check the serial number online. If you're still having trouble, call the company who installed the equipment - they should have that information on file.

If you find yourself constantly calling for furnace repairs, the costs can add up quickly. When the price of repairs starts approaching 50% of the cost of a new unit, replacement is often the more cost-effective choice.

Older furnace models lose efficiency over time, causing your energy bills to increase. If you notice a steady rise in heating costs despite no change in usage, your furnace may be working harder than it should. Call us today to talk about rebates offered for newer, more energy-efficient furnaces: Lennox and Cascade Natural Gas have some promising rebate offers as of March 2025.

Are some rooms in your home warmer than others? If your furnace is struggling to distribute heat evenly, it could be a sign of failing components or an undersized system.

Banging, rattling, or squealing noises coming from your furnace may indicate mechanical issues. While some noises can be fixed with repairs, persistent or worsening sounds may mean your furnace is nearing the end of its life.

An aging furnace may not filter air as effectively, leading to increased dust, allergens, and dry air in your home. If you’ve noticed a decline in indoor air quality, your furnace could be the culprit. Regardless of the status of your furnace, we recommend checking your filters every 1-3 months; err on the side of checking it more frequently if you have allergies or pets. If you notice a burning odor when the furnace turns on, it's likely time to replace the filter.

A furnace burner should have a steady blue flame. A yellow flame can indicate incomplete combustion, which could lead to carbon monoxide production—a serious safety hazard.

If your home isn’t staying warm enough even when the thermostat is set correctly, your furnace may be struggling to keep up, signaling that replacement is necessary.

Replacing your furnace can improve energy efficiency, reduce heating costs, and provide more reliable and consistent comfort. Newer models also come with advanced features like smart thermostats, better filtration, and quieter operation.

If you’re experiencing any of these signs, it might be time to replace your furnace. At AirTech Heating & Hydro Mechanical Inc., we can help you assess your system, evaluate the cost/benefit for repair or replacement, and choose the best option for your home. If you’re in the Bellingham area, contact us today to schedule an inspection and get expert advice on upgrading your furnace.