How Do I Service My Oil Burner Before Winter Hits
Call a licensed technician now and book a full burner tune up before the first hard frost. This one visit, usually under two hours, cleans the nozzle, checks the filter, and tests the safety controls that keep the system from stalling out on the coldest night of the year.
November is the month to get this done. Techs get booked solid once temperatures drop, and a burner that quits in January means a cold house, a rushed service call, and sometimes a repair bill instead of a maintenance bill.
What a Real Tune Up Includes
A proper service call is not just someone glancing at the tank. Ask your technician to do all of the following:
Replace the oil filter and nozzle. These are cheap parts that cause most no heat calls when they clog.
Clean the combustion chamber and check the flue pipe for soot or blockage. A dirty chamber burns oil less efficiently and can trip the system's safety switch.
Test the cad cell, the small sensor that tells the burner whether the flame lit. A failing cad cell is one of the most common reasons a burner locks out on a cold morning.
Check the thermostat and aquastat settings, and run a combustion efficiency test with a flue gas analyzer. This tells you how cleanly the system is burning, not just whether it turns on.
If your tank is more than 20 years old, ask the technician to look at it closely during the same visit. A tune up is also the easiest time to catch an oil tank that is starting to show rust or weeping at the seams.
Most technicians also offer an annual service contract. On Long Island, where oil heat is still common in older housing stock, a contract usually covers one tune up plus priority response if the burner fails mid winter. Energy Star's furnace and boiler maintenance guide is a good plain English reference if you want to understand what each part does before the tech arrives.
Seal the House While You're At It
A serviced burner still works harder than it needs to if cold air is leaking in around your windows and doors. Late fall is the window for this, before the first real cold snap and before holiday guests fill the house.
Check weatherstripping on exterior doors. If you can see daylight around the frame, it needs replacing. Add a draft guard at the bottom if the gap is wide.
Run your hand around window frames on a windy day. Cold air moving past your hand means the caulk or glazing has failed. Caulking is a weekend job, not a contractor job, for most double hung windows.
Storm windows and doors, if your house still has them, should go up before Thanksgiving. Taking them down and putting them up is one more thing nobody wants to do in freezing rain.
Consumer Reports' guide to weatherizing a home walks through sealing drafts room by room if you want a checklist to follow.
Timing Around the Holidays and Year End
If you are closing on a sale or refinance before the end of the year, schedule the burner service early in November, not the week before Thanksgiving. Inspectors and attorneys often ask for proof of recent heating system service as part of a year end closing file, and service companies slow down once the holidays start.
If you are staying put, the same logic applies in reverse. Get the tune up out of the way before your calendar fills with holiday guests and travel. A burner that needs attention is much easier to deal with on a quiet Tuesday in November than on December 23rd.
Book the service call this week, then walk the house for drafts once it is done.