A proper pilot flame should be blue with a yellow tip and should be strong enough to cover about 1/2 inch at the end of the thermocouple tip. If the flame is too strong and improperly adjusted, it will be blue but may be noisy and lift off the thermocouple, causing improper furnace operation.
Natural gas pilot orifice sizes typically vary from approximately 0.014 to 0.026 (inches diameter). Examples include 0.026′′ for a commercial cook- ing appliance pilot (1,835 Btu/hr at 4′′ pressure), and 0.018′′ for a natural gas water heater pilot (879 Btu/hr at 4′′ pressure).
Thereof, What is the orifice size?
The orifice size is the actual hole diameter in the orifice fitting. Drill bits although most commonly sold by inch increment size are also available by number. Thus a #56 size orifice is an orifice fitting that has been drilled with a #56 drill bit. Drill bit numbers and sizes have an inverse relationship.
Also to know is, Is it dangerous to leave a pilot light on? Leaving the gas on keeps this compound moving out of the tubes. Keeping the pilot light on will also keep moisture out of the unit and in turn, help prevent corrosion. … As you can see, it’s probably best in most cases to extinguish the pilot light in your gas fireplace during the months when you don’t need heat.
Subsequently, question is, How do I know my orifice size?
Also, Can a pilot light cause carbon monoxide?
Carbon monoxide is only produced when fuel of any type; oil, gas, wood or coal is burned. … And a pilot light out of adjustment can produce carbon monoxide gas. The amount produced by even a badly maladjusted pilot is small because the flame size is also small.
What is a pilot orifice?
A water heater pilot orifice controls the flow of gas to the pilot. Gas. orifices are engineered to strict tolerances. A tiny amount of debris. will interfere with the operation of the pilot light.
What happens if your pilot light is out?
If it senses that the pilot light has gone out, the thermocouple shuts off the gas supply to the flame in order to prevent safety issues with your water heater. Over time, thermocouples can begin to malfunction and shut off the gas supply to the pilot light even if it’s burning properly. A bent or dirty thermocouple.
Can a pilot light flame be adjusted?
Adjusting the Pilot Flame If the pilot flame is too small, you may be able to make it larger by turning the pilot adjustment screw on the valve control counterclockwise with a screwdriver to open it. … The cause of a weak flame may also be an obstruction in the pilot tube.
What is the size of a natural gas orifice?
approximately 0.014 to 0.026
How do I make my pilot light bigger?
Turn the screw on the control panel to adjust the size of the flame. Use a screwdriver. A clockwise turn will make the flame smaller and the counterclockwise turn will increase it. If you have a lo-hi button on the fireplace – use it!Feb 20, 2020
What is a gas orifice?
The gas orifice dispenses fuel into the combustion or burner tube through a small, high precision hole. The orifice delivers just the right amount of fuel to mix with the correct amount of air, to create just the right flame for the job in your appliance.
Can the pilot light on a gas fireplace be adjusted?
In either case, adjusting the pilot light is fairly easy. You’ll just need a screwdriver and a little patience, and you can fix the issue in a matter of minutes. First, locate the controls on the bottom of a direct-vent fireplace. … On others, there will be a screw that you can easily adjust with a screwdriver.
Why is my pilot light out?
Some of the possible serious reasons for pilot lights to go out include loose or broken gas valves, thermocouples or heat exchangers, faulty venting, low gas pressure, or high winds. If you believe there is a serious problem, don’t hesitate to contact a professional.
What should the pilot light look like?
A proper pilot flame should be blue with a yellow tip and should be strong enough to cover about 1/2 inch at the end of the thermocouple tip. If the flame is too strong and improperly adjusted, it will be blue but may be noisy and lift off the thermocouple, causing improper furnace operation.
How much carbon monoxide does a pilot light produce?
Also, a typical pilot light can generate 450 pounds of carbon dioxide – a greenhouse gas — over a six-month period.
What is a natural gas orifice?
Orifices are responsible for the amount of gas that flows into the burners. Orifices are brass fittings that screw into (spud) or onto (hood) valves. These orifices will have various hole sizes as they determine the gas type either Propane or Natural Gas.
What size hole is in a natural gas orifice?
Natural Gas Orifice. The manufacturer creates the orifice in a gas valve by basically making a hole with a drill, and drill sizes are numbered from 75 to 1. The smallest hole — which is a little less than 3/64 inches — is 75, and the largest — 1/4 inch — is 1.
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