Q. What is the BTU rating of King Kooker« Cookers?
A. All cast burners can produce approximately 54,000 BTUs. The jet burners can produce approximately 110,000 BTUs.
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Q. What is the difference in a jet burner and a cast burner?
A. Cast burners are much like the burners on your range. The maximum output is 54,000 BTUs through the 4" burners. Jet burners mix the propane and air in a venturi tube and exhaust the mixture in a single flame "jet". A Jet Burner can generate up to 110,000 BTUs.
Q. How do I know if I need a Jet Burner or a Cast Burner?
A. Cast burners are best used for deep frying, stews, etc since the diffuse flame provides more even heating over a larger surface area and can be better regulated. They can also be successfully used to boil seafood and crawfish with pots up to approximately 40 quarts. If you wish to boil larger quantities you need a Jet Burner.
Q. How many BTUs do I need?
A BTU (British Thermal Unit) is the amount of energy required to raise 1 lb of water 1 degree Fahrenheit. You will usually see propane burners rated in BTU's, but what they mean is BTU's/hr.
Here is a simple way to see how many BTUs you need for your pot size. Water density is 8.3 lb/gal. To raise 1 gallon of water (1 x 8.3 = 8.3 lbs) from 70 to 212 deg F in 1 hour you will need 8.3 x 142 = 1,178.6 BTUs.
Using this BTU requirement for each gallon of water you can figure out how many BTUs would be required to boil your pot of water in one hour. For example a 30 quart pot (7.5 gallons) (full) would require 7.5 X 1,178.6 BTUs = 8,839.5 BTUs to bring the pot to a boil in one hour, assuming 100% efficiency. Of course 100% efficiency isn't realistic. Assuming 100% efficiency a 54,000 BTU/hr cast burner should bring that pot to a boil in 8,839.5 / 54,000 BTUs = .16369 hours or 9.8 minutes. Anyone that has ever tried to bring a full 30 quart pot to a rolling boil knows that it doesn't happen that quickly.
How much heat is lost before it even gets to the pot is hard to calculate. Outside temperature and wind each can negatively impact the efficiency of the heat transfer from the flames to the pot. A safe estimate would be 50% efficiency, so doubling the heating time would probably be realistic.
Evaporation takes away heat and to hold a rolling boil will require additional heat besides that required to raise it to a boil. Without going into a technical explanation just take my word that boiling away 1 gallon of water per hour will require approximately 8,000 BTUs/hr.
So, a 54,000 BTU burner should comfortably boil a 30 quart pot in 20 minutes or less and comfortably hold that pot at a rolling boil. However, if you move to a 60 quart pot, the heating time doubles and now you are sitting around for 40 minutes or more waiting for the pot to boil. Somewhere between a 30 quart pot and a 60 quart pot you probably need to move to a jet burner which produces 110,000 BTUs and therefore cuts the heating time approximately in 1/2.
Be skeptical of BTU/hr output claims. There is no industry standard, so take wild ratings with a grain of salt.
Q. What size pot can I successfully use on a cast burner?
A. Cast burners can be used to boil foods in pots up to 40 QTs. Cast burners with their diffuse flames are best suited for deep frying and boiling smaller quantities (up to 40 QTs) of seafood. With greater heat producing capabilities the Jet Burners are best suited to large (over 40 QT) pots of seafood.
Q. Can I use Natural Gas with my King Kooker« rig?
A. No. The burners are set up for use with Propane. Not only does natural gas void your warranty, it also lowers the BTU output by approximately 1/2.
Q. How do I match pot size with pounds of crawfish?
A. Crawfish come in sacks. Each sack varies from 35-45 lbs. of crawfish depending on the size of the crawfish. A sack of crawfish would completely fill the basket of a 60 QT pot. An 80 quart pot is actually much better suited for an entire sack of crawfish.
Q. What size turkey can I fry in my King Kooker pot?
You can fry up to 16 lb turkeys in your 26 quart pot, and up to 20 lbs in your 30 quart pot.
Q. How much oil do I need to fry a turkey?
Enough to cover the entire turkey. To test the amount, place the turkey in the empty turkey pot. Fill with enough water to cover the turkey. It is not necessary to cover the ends of the leg bones. Remove the turkey from the pot. Measure the amount of water and replace the water with an equal amount of oil.
Q. At what temperature should I cook my turkey and how long?
Fry the turkey at 350░F for 3 1/2 - 4 minutes per pound.
Q. After the temperature reaches 350░F and I place my turkey in the oil, the temperature drops. How do I adjust for that?
That is normal and not a problem. Just adjust the regulator to max and bring the temperature back up to a steady 350░F. Begin timing the turkey from the time it is immersed. Do not add more minutes for the recovery time.
Q. How long will the propane in my tank last?
Propane contains about 21,400 BTU/lb. A 20lb tank therefore contains 428,000 BTUs of potential energy, so you would expect a 54,000 BTU/hr burner at full blast to last 7.9 hours on a full tank. Of course you probably won't have it at full blast, so the tank should last much longer than that.
The King Kooker jet burners using 110,000 BTUs/hr would only last approximately 1/2 that, or less than 4 hours at full blast. Again you aren't going to have it a full blast all the time.
Q. How do I assemble the air shutter, spring and hose/regulator?
Place the air shutter against the end of the venturi tube. The wide end of the spring goes against the outside of the air shutter. If you have a male fitting on the hose, screw the end of the hose into the venturi tube through the spring and the hole in the air shutter. If you have a female fitting, first screw the orifice block (L shaped fitting) into the venturi tube through the spring and the hole in the air shutter and then screw the female fitting of the hose onto the male fitting of the orifice block.
Q. Is there supposed to be an open area in the venturi tube even after placing the air shutter on? Will the propane come back out of the open area?
The air shutter will never completely close. The open area lets oxygen mix with the propane to give you the blue flame that you need. Without the open area for the oxygen, there would be a yellow flame that would smoke up the pot. The propane will not come back out of the venturi tube. It will jet through the tube.
Q. I have a brand new cooker and I cannot get the burner to light. What's the problem?
Make sure the tank has been filled with propane. Tanks purchased from the store shelf are most often sold empty.
Q. When I light my cooker I don't get a blue flame. All I get is a yellow flame. What's wrong?
Adjust the air shutter to the most open position to allow more oxygen flow. If this does not produce a blue flame, there could be an obstruction in the venturi tube. Remove the hose, spring and air shutter from the venturi tube. Look into the venturi tube to see if there is a blockage. Sometimes insects build nests or webs inside during storage. Use a wire coat hanger or something similar to remove the blockage. Reconnect the cooker, perform the leak test and light the cooker again. The flame should be blue.
Q. I'm having trouble getting sufficient gas through my rig. What is going on?
If your hose assembly has a black or green knob, you have a Type 1 connection. All these assemblies are equipped with a flow limiting device. It is designed to limit the flow of gas in case of a leak between the regulator and the appliance. If you have opened your valves in the wrong order or developed a leak in your connections this device may have checked the flow of gas. To achieve a positive gas seal, which will allow the maximum gas flow the T-handle on the regulator must be set to a completely OFF position before the cylinder valve is opened. Remember - "TANK ON FIRST, OFF LAST".
If you have developed this problem there are two remedies: