Posted: July 14, 2025

How to Maintain Your Heating Oil Furnace or Boiler

Here are four easy ways to get your heating equipment ready for next winter.

While the heat might have you reaching for sunscreen and an icy drink, now is the perfect time to give your home’s heating system some much-needed care. Whether you have a boiler or a furnace, a bit of maintenance now will ensure your heating system performs efficiently when the cold weather returns.

For homeowners in Quincy and across the South Shore, here are four key steps to maintain your heating system and keep it running at its best.

1. Bleed Air from Radiators

If you noticed your radiators making clanging or gurgling noises last winter, it could be a sign of trapped air. This air can hinder your radiator’s ability to heat effectively, leaving parts of your home chilly even when the heat is on.

Here’s how you can bleed your radiator in a few simple steps:

1. Turn off your heating and wait for the system to cool down.
2. Locate the radiator’s bleed valve (usually at the top).
3. Use a radiator key or flat-head screwdriver to slowly open the valve until you hear a hissing sound.
4. Once water starts to drip out, close the valve.

Performing this simple task once a year keeps your radiators operating efficiently and ensures even heating throughout your home.

2. Flush Sediment from Your Boiler

Over time, sediment and sludge can build up in your boiler’s tank, reducing its efficiency and accelerating wear and tear. Flushing your boiler once or twice a year is a straightforward way to maintain it.

Here’s what to do:

1. Turn off the boiler and allow it to cool completely.
2. Place a bucket under the boiler’s drain valve.
3. Open the valve and allow the water to flow out until the water runs clear.
4. Refill the tank to the correct level using the cold-water intake valve.

Flushing out sediment increases your boiler’s efficiency and ensures it lasts longer. Be sure to refer to your boiler’s manual for specific instructions.

3. Check and Replace Furnace Air Filters

If you use central air conditioning, your furnace’s air filter works year-round to improve your home’s air quality. This hardworking filter accumulates dust and debris quickly, which can reduce airflow and make your HVAC equipment work too hard.

Check your filter monthly and replace it if it looks dirty. Clean filters allow air to circulate freely, improve efficiency and reduce energy costs. Also, while you’re at it, ensure that all air vents are open and unobstructed by furniture or rugs.

4. Schedule an Annual Heating Tune-Up with Atlantic-Pratt Energy

Professional maintenance is one of the best ways to keep your heating system in top condition. Whether you have a furnace or a boiler, scheduling regular tune-ups ensures peak performance and prevents costly breakdowns during the winter.

Benefits of a heating system tune-up include:

• Improved energy efficiency, meaning lower heating costs all winter long.
• Extended lifespan of your equipment.
• Quieter heating performance.
• Ensured compliance with manufacturer warranties.

At Atlantic-Pratt Energy, we offer HVAC service plans tailored for South Shore homeowners. Our affordable plans include:

• Annual maintenance to keep your system running smoothly.
• Priority service when you need it most during the cold months.
• Discounts on heating system repairs and loyalty credits.

Regular maintenance doesn’t just protect your equipment; it also ensures your home will stay warm and comfortable no matter how cold it gets outside.

Arrange your tune-up or enroll in a heating service plan today to safeguard your home this winter.