It’s smart to make sure your heating system is ready before cold weather sets in. A well-maintained furnace or boiler keeps your home or small business comfortable, efficient, and safe all winter long. In this guide, we’ll walk through the benefits of regular furnace or boiler maintenance and offer a checklist to help you prepare for heating season.
Importance of a Properly Functioning Furnace or Boiler
Your furnace or boiler works hard to keep your space warm when outside temperatures drop. Regular cleaning and inspections help it run efficiently and extend your system’s lifespan.
Routine maintenance also improves indoor air quality and helps detect small issues before they become costly repairs. This is especially important for gas-powered units, where safe operation is essential. Ultimately, a well-maintained system provides consistent heat throughout your home or small business, eliminating cold spots and uneven temperatures.
If your heating equipment ever needs work, Agway EnergyGuard® helps save on energy-related repairs on eligible heating, cooling, and electrical systems*, so you have confidence knowing your system is ready when you need it most.
Signs It’s Time for Cleaning and Inspection
If your furnace or boiler isn’t running like it used to, it may need attention. Here are a few signs to watch for before winter hits.
Noises or Smells
Unusual noises like banging, rattling, or clicking can signal a loose part or buildup in your system. A furnace or boiler that’s working harder than it should often becomes noisier over time. You may also detect a burning or musty smell from dust, dirt, overheating, or wiring issues. If your system sounds or smells different than usual, it’s time for an inspection.
Pilot Light Problems
A flickering or discolored pilot light may indicate a problem with your gas supply or ignition system. A yellow flame often indicates poor gas-to-air balance, which can cause carbon buildup and lower heating efficiency.
In some cases, a faulty thermocouple or gas valve may cause problems. Because pilot issues can involve natural gas, it’s best to call a licensed technician right away if you notice any of these signs.
Leaks
Moisture or pooling water around your boiler or furnace often points to issues with pipe connections, drain lines, or pressure valves. Even a tiny leak can lead to rust, corrosion, or electrical shorts if left unaddressed.
Over time, this can lead to larger system damage and reduced heating performance. If you spot water where it shouldn’t be, turn off your system and call a service technician immediately.
Cold Air
If your furnace is running but blowing cold air, that’s a clear sign something isn’t working right. This could be caused by a clogged air filter, thermostat issue, or a problem with your system’s ignition. Cold air may also result from blocked vents or duct leaks, which make your heating system work harder for less warmth.
Higher Energy Bills or Short Cycling
A sudden spike in your heating bills or a furnace that constantly turns on and off are both causes for an inspection. Dirty filters, blocked vents, and failing components can all cause your system to run inefficiently. A cleaning can help restore proper airflow so your system doesn’t have to work overtime to keep you comfortable.
Home Inspection Checklist For a Furnace or Boiler
Before turning on your heating system for the season, take time to inspect, clean, and test key components. Follow this checklist to ensure your furnace or boiler runs safely this winter.
Get a Professional Inspection
A licensed technician should inspect your system at least once a year before winter. During a tune-up, they’ll check the heat exchanger, ignition system, and safety controls to ensure everything functions properly. They’ll also test for gas leaks and carbon monoxide risks you may not detect on your own.
Ideally, you should schedule a professional inspection early in the season to avoid long wait times once cold weather arrives.
Ensure Optimal Airflow
Proper airflow keeps your system from overheating and helps distribute heat evenly throughout your home or small business. Check all vents and registers around the building and ensure they aren’t blocked by rugs, furniture, or curtains. Poor circulation forces your furnace or boiler to work harder than necessary, increasing wear on your system.
Clean the Boiler or Furnace
Dirt or dust can build up over months of use, even during the off-season. Use a soft brush or vacuum to remove debris from around your furnace cabinet or boiler housing. If your system has exposed burners, make sure they’re free of soot or grime.
For deeper cleaning, contact a qualified professional. A clean system ultimately runs quieter, uses less energy, and keeps your indoor air cleaner.
Change Filters
A dirty air filter can restrict airflow and lead to overheating. You should change most filters every 1-3 months, but check your manufacturer’s recommendations. High-efficiency filters may last longer, but they still require regular monitoring and maintenance.
Test Thermostat and Controls
Your thermostat is the command center of your heating system. Switch it to “heat” and raise the temperature a few degrees above room level to see if the system responds. If it doesn’t turn on right away, you may need to recalibrate or replace it. Doing this quick test before winter ensures your thermostat is ready when cold weather finally hits.
Stay Warm and Protected With Agway
Keeping your furnace or boiler clean and maintained helps your system run more efficiently and last longer. Schedule an annual inspection before winter hits, and make this inspection checklist part of your regular maintenance routine.
If any issues are found during your service, check your Agway EnergyGuard program first to see if they’re covered before paying out of pocket. You can also call Agway Energy Services® for vendor referrals if you need help finding professional tune-ups or licensed technicians in your area.
Keep your home or small business warm and worry-free this winter by signing up for Agway EnergyGuard today!
Furnace and Boiler Maintenance FAQs
What are some quick steps to prep a boiler or furnace?
A few quick steps to prep your boiler or furnace include replacing the air filter, cleaning vents and registers, and checking that your thermostat is working properly. You should also have a professional inspect the system before winter starts.
Is a professional tune-up always necessary?
Yes, annual professional maintenance keeps you safe and compliant with manufacturer warranties. Technicians can also save you from unexpected breakdowns by identifying problems early on.
How often should I change my furnace’s air filter?
Ideally, you should replace your air filter every 1-3 months, depending on how often you use your system. Households with pets or allergies may replace filters more often than those without.
What is the difference between a furnace and a boiler?
The primary difference between a furnace and a boiler is how they distribute heat. A boiler heats water and circulates it through radiators and radiant floor systems, while a furnace heats air and distributes it through ducts using a blower fan. Both systems provide heat, but use different methods to do so.
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