How far apart should the electrodes be on an oil furnace?

The electrode position of 1/16” in front of the nozzle and the 5/32” gap between the electrode tips will remain unchanged.

What role do electrodes play in oil burners?

The electrodes receive high-voltage electricity from both components. From there, a spark “jumps” from the tip of one electrode to another, creating an electrical arc to ignite the fuel. Oil burners use either interrupted or intermittent ignition systems.

Why is it important to have the correct spacing when setting the electrodes?

The turbulator improves the oil dispersion in the combustion chamber. Watch out: if you set the turbulator too close to the electrodes an elecrical arc between electrodes and turbulator will short the system and prevent proper ignition.

How do you clean oil furnace electrodes?

Apply a small amount of the acetone solvent to the cloth and gently wipe the tips of the electrodes. Use only a small amount of the solvent for cleaning the tips. Allow the solvent to fully evaporate before replacing any covers that you may have removed.

Can I use diesel fuel for my oil furnace?

Homeowners who run out of heating oil and can’t wait days for a refill have an option: diesel fuel. Diesel, as sold at many gas stations, is an acceptable replacement for home heating oil in virtually all furnaces. Do not put ordinary gasoline in your oil tank – it will damage your furnace and cause other problems.

How often should electrodes be replaced?

Electrodes should be changed as needed and every 24/36 hours.

How often should I change my oil burner nozzle?

Prepare to change your oil burner nozzle annually. However, some units will require more maintenance than others.

What part of an oil fired burner creates the spark to ignite the fuel?

The regulating valve, located in the pump housing, produces the right amount of pressure to atomize the oil. The ignition/transformer produces a high-voltage spark that provides enough heat to vaporize the atomized oil from the nozzle and achieve ignition.

What is the purpose of pre purge on an oil fired system?

Pre-Purge is to exhaust unburned gas in a combustion chamber before ignition by exhauster so that gas explosion can be prevented. Pre-Purge is done before ignition. It is called as Post-Purge to exhaust forcibly after shutting off the burning.

What should be done if a furnace with a tripped primary control has oil in the combustion chamber?

58-11) What safety precaution should be followed when working on a furnace with a tripped primary control? Check the combustion chamber for accumulated oil. If oil is in the combustion chamber it must be cleaned out before firing the furnace.

What is the most common cause of puff back?

Here are the most common reasons oil accumulation leading to a puff back may occur:

1. Leaks in the Oil Supply Piping.
2. Heater Shutdown Problems.
3. Clogged or Damaged Oil Spray Nozzle.
4. Issues With Chimney or Heater Installation.
5. Problems With Combustion Gas Venting.

What is the difference between a hollow core and a solid core oil nozzle?

Hollow cone nozzles generally have more stable spray angles and patterns under adverse conditions than solid cone nozzles of the same flow rate. This is an important advantage in fractional gallonage nozzles where high viscosity fuel may cause a reduction in spray angle and an increase in droplet size.