Can I service my oil furnace myself?

Author: Mr. Norwood Jaskolski  |  Last update: Tuesday, May 6, 2025

While there aren't many quick fixes you can undertake yourself on these types of furnaces, good regular maintenance can help eliminate many problems.

Can I clean my oil furnace myself?

You can perform basic maintenance on your oil furnace, such as replacing or cleaning the air filter and dusting external components. However, cleaning internal parts like the burner, heat exchanger, and flue pipe is best left to a professional due to the complexity and safety risks involved.

Can you service an oil boiler yourself?

Can you service your own oil boiler? Like with gas boilers, you shouldn't service your own oil boiler as working with these kinds of boilers involves dealing with flammable oil and high-pressure systems.

Can I do my own furnace maintenance?

No! The biggest reason to never try and fix your furnace yourself is that it can be dangerous, especially if the furnace is gas, which is the most common type. The danger involved in repairing appliances connected to gas mains makes it illegal for anyone without a license to attempt it.

How much does it cost to service an oil furnace?

The average cost to clean an oil furnace is $100 to $200. A full oil furnace cleaning typically includes an inspection, system tune-up, replacing filters, and cleaning the system's main parts. Additional costs may include: Chimney cleaning costs $150 to $375 on average.

How to Service an Oil Furnace

How often should an oil furnace be serviced?

How Often Does My Oil Furnace Need to Be Serviced? You should have your oil furnace serviced at least once a year. If the furnace is used more than average, you'll want to schedule routine service every six months. A furnace may be used more often in freezing climates or areas with long winters.

What is the most expensive part to fix on a furnace?

A heat exchanger replacement is often one of the most costly repairs in a furnace, and the expense can sometimes rival that of installing a new furnace. Typical replacement costs vary widely but can easily reach several thousand dollars, especially if labor costs are factored in.

How much does a furnace tune up cost?

Out West, Josh Mitchell, an HVAC technician based in Nevada City, California, says a standard furnace tune-up cost typically falls between $70 and $150.

What happens if you don't service your furnace?

When you skip a yearly furnace maintenance appointment, cracks can begin to form in the heat exchanger. As these cracks form, carbon monoxide begins to leak into your air vents.

How do I tune my furnace myself?

11 DIY Furnace Tune Up Tips
  1. Change Your Furnace Filter. ...
  2. Check Burner Flames. ...
  3. Vacuum Burners. ...
  4. Clean the Blower. ...
  5. Check the Drive Belt for Wear and Tear. ...
  6. Clean the Flame Sensor. ...
  7. Dust the Pilot and Hot Surface Igniter. ...
  8. Lubricate Bearings.

What is the life expectancy of an oil boiler?

Most modern oil boilers are designed to last 10 - 15 years, however modern advances in technology mean that efficiency is constantly improving.

How long should an oil boiler service take?

Does an oil boiler take longer to service? Yes, servicing an oil boiler usually takes longer than a gas boiler. An oil boiler service generally takes about 1-2 hours, and it typically costs more than other boiler services do.

Should I turn off my oil boiler in the summer?

As soon as the weather starts to warm up, it's a good idea to turn your boiler off to save energy and money, however, make sure you don't leave it off for long periods. For best results, turn it on once every few weeks for short bursts.

Can I service my own oil boiler?

Oil can easily contaminate your home, especially when it's heated and pressurised inside a boiler's system. Working on an oil boiler without the proper knowledge is dangerous and shouldn't be attempted.

Can I vacuum the inside of my furnace?

To clean furnace burners, first remove the furnace access doors and remove the burner cover (if there is one) by loosening the screws. Vacuum the burners and furnace base using the shop vac or the upholstery attachment to your vacuum making sure you reach every nook and cranny you can reach.

What happens if you don't clean your oil furnace?

So does your oil furnace flue need to be cleaned like wood-burning appliances' flues do? They certainly do. And ignoring the maintenance of your oil furnace flue can lead to various problems, such as reduced efficiency, increased fuel consumption, increased safety risks, and costly repairs.

How much does a furnace cleaning cost?

While a standard furnace cleaning costs about $60 to $150, you'll spend around $150 to $400 for an advanced cleaning package. Even if you keep up with regular cleanings, from time to time you'll need to spend a little more for the deep clean to make sure your furnace is in tip-top shape, inside and out.

What does a furnace tune-up include?

A certified technician will carefully examine your furnace, checking for any signs of wear, damage, or potential issues. This includes inspecting the heat exchanger, burner, ignition system, electrical connections, and thermostat.

How long does it take to service a furnace?

On average, furnace cleaning and tune-up services last just one to two hours. During these appointments, our technicians inspect all interior and exterior furnace components, calibrate thermostats, and inspect and clean furnace venting systems. We also: Inspect heat exchangers for build-ups, blockages, and cracks.

What maintenance is required for an oil furnace?

Clean or replace your air filter per the manufacturer's instructions to avoid costly energy bills. Clean the floor vents. This can be a tedious task but it's important to ensure your floor vents remain free of dirt, dust, pet hair, and other debris for consistent furnace performance. Clean around the furnace.

How much does it cost to have someone come check your furnace?

A furnace inspection costs an average of $80 to $100. Your cost may increase if more furnace repairs are needed, or based on the specifics of your HVAC system. If detrimental issues are uncovered, you'll be quoted for the repair or potential replacement of your HVAC equipment.

What month is best for furnace tune-up?

The best time for a furnace tune-up depends on when it gets cold where you live. Here in College Station, you may not turn on your furnace until late November or December. You should schedule a tune-up a couple of weeks to a month before you turn your heater on for the winter season.

How much to service an oil furnace?

18-Point Oil Burner Service and Tune-Up for Only $245

Optimize your heating system with our 18-Point Yearly Maintenance Service for Oil Burning Boilers and Furnaces. Priced at just $245, this comprehensive service includes the following: Replacement of key components: Oil burner nozzle, oil filter, and pump screen.

What is the most common furnace failure?

One of the most common furnace problems is a malfunctioning thermostat. A sure sign your thermostat isn't working properly is if your fan is constantly running. This will cause your thermostat battery to run, and cause your furnace to work inefficiently.

Is it worth fixing a 20 year old furnace?

Repair: If your furnace system is less than 15 years old and the cost of repair is less than half the cost of replacement. Replace: If your furnace system is more than 15 years old and requires a costly repair to maintain efficiency.

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