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Old 02-04-2010, 10:39 AM  
ilyaz
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Default Adapter for portable gas stove?

I have one of those portable camping gas stoves (like Coleman 2-Burner Propane Stove at REI.com). It uses small gas canisters (like the one shown here: Coleman Deluxe PerfectFlow Propane Lantern at REI.com). I also have a gas grill that uses standard big gas tanks (shown for example here http://toolmonger.com/wp-content/uploads/2007/08/TM_gg.jpg). Can I find some sort of adapter that would allow me to connect the large gas tank to my portable stove?

Thanks!



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Old 02-04-2010, 12:06 PM  
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Well, you've come to the right place, Ilyaz

The kind of thread you have on a disposable propane tank (like the kind used for camping) is called a "BernzOMatic" thread after the company that first made propane soldering torches popular in the 1950's:

ABOUT US

Depending on it's age, the kind of valve you have on your barbque grill's propane tank will either be a "POL" valve or an Acme valve. Since Acme is not the only company making the Acme style of propane tank valve, that style is commonly referred to as a "QCC" valve or "QCC" connection (short for Quick Closing Coupling). This web site explains the difference between POL and QCC propane tank valves:

RVbasics.com - RV propane cylinders and cylinder recertification

POL valves have a female left hand thread. QCC valves are backward-compatable with POL valves because they have both a right hand male thread and a POL left hand female thread on the same valve outlet.

So, all you need to do is phone up any propane wholesaler listed in your yellow pages under "Propane" and ask if they have a BernzOMatic-to-QCC or BernzOMatic-to-POL adapter. The should have them, and it'll probably cost you about $20.



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Old 02-04-2010, 12:37 PM  
ilyaz
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N_K, thanks much for the detailed response. I have the QCC type. Does this adapter look right to you?

Century 8-Foot Hose with Type 1 Adapter at REI.com

At least the QCC side seems right to me. The other side I think is OK too.

By the way, why is it called "type 1"?

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Old 02-04-2010, 06:21 PM  
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Ilyaz: Yes, it looks to me like that hose would do what you want. It has a Type 1 connector on one end that would connect to your 40 pound propane tank and it has what appears to be a BernsOMatic thread at the other end, suitable for a small camping appliance or propane torch. You should be able to connect your camping stove to your Bar-B-Que's propane tank using that hose from what I can see.

It's called a "Type 1" connector because that hose connects using the RIGHT HAND MALE THREADS on the OUTSIDE of the propane tank's valve outlet. All Type 1 connections will have that big plastic nut (called a "Marshall type Acme nut") and it's what threads onto the male threads on the outside of the propane tank valve.

If it used a quick disconnect coupling like you see on the compressed air hoses at gas stations, it would be called a Type 2 connector. That is, the big black plastic nut would be replaced with a quick disconnect like you see on compressed air hoses at gas stations. And, of course, you could only connect that hose to a propane tank that had a Type 2 valve on it.

If that hose connected to the propane tank using the female left hand threads (the POL threads) on the inside of the propane tank valve outlet, then it would be a "Type 3" connection. That is, instead of the big black plastic nut on one end of the hose, you'd have a brass piece with external left hand threads.

The difference between a POL propane tank valve and a Type 3 QCC propane tank valve is that the QCC valve has a float that fits inside the tank that prevents you overfilling the tank. When the tank is 80 percent full of liquid propane, the float rises and shuts the valve so that tank can't be filled any further. The old POL valves never had that feature. All QCC propane tank valves have that float that prevents overfilling.

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Old 02-04-2010, 08:55 PM  
ilyaz
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N_K, one more q. This adapter has no valves. Do you know if there are similar adapters with a good valve?

By the way, my intention is to use this inside our house while we do kitchen renovation. Therefore I want another means -- in addition to the burner knobs on the stove itself -- of cutting off the gas.

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Old 02-04-2010, 09:36 PM  
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What does your Coleman Stove say about using it indoors?

CARBON MONOXIDE HAZARD
• This appliance can produce
carbon monoxide which has
no odor.
• Using it in an enclosed space
can kill you.
Never use this appliance in an
enclosed space such as a
camper,
tent, car or home.

• EXPLOSION - FIRE HAZARD
• Never store propane near high heat, open flames, pilot lights, direct
sunlight, other ignition sources or where temperatures exceed 120
degrees F (49°C).
• Propane is heavier than air and can accumulate in low places. If you
smell gas, leave the area immediately.
• Never install or remove propane tank while outdoor stove is lighted,
near flame, pilot lights, other ignition sources or while outdoor stove is
hot to touch.
• During operation, this product can be a source of ignition. Never use
the stove in spaces that contain or may contain volatile or airborne combustibles,
or products such as gasoline, solvents, paint thinner, dust
particles or unknown chemicals. Minimum clearances from combustible
materials: 12 inches from the sides & 48 inches from the top.

• Provide adequate clearances around air openings into the combustion
chamber.
Not for home or recreational vehicle use.

WARNING
We cannot foresee every use which may be made of our products.
Check with your local fire safety authority if you have questions
about use.
Other standards govern the use of fuel gases and heat producing
products for specific uses.Your local authorities can advise you about these.
• Never refill disposable cylinders.
• Use the preset regulator that came with the stove. Do not attempt to
adjust.

• CARBON MONOXIDE HAZARD
• This stove is a combustion appliance. All combustion appliances produce
carbon monoxide (CO) during the combustion process. This product is
designed to produce extremely minute, non-hazardous amounts of CO if
used and maintained in accordance with all warnings and instructions. Do
not block air flow into or out of the stove.
• Carbon Monoxide (CO) poisoning produces flu-like symptoms, watery
eyes, headaches, dizziness, fatigue and possibly death.You can't see it and
you can't smell it. It's an invisible killer. If these symptoms are present
during operation of this product get fresh air immediately!
• For outdoor use only.
• Never use inside house, camper, tent, vehicle or other unventilated or
enclosed areas. This stove consumes air (oxygen). Do not use in unventilated
or enclosed areas to avoid endangering your life.

• SERVICE SAFETY
• Keep all connections and fittings clean. Inspect propane cylinder and
stove propane connections for damage before attaching.
• During set up, check all connections and fittings for leaks using
soapy water. Never use a flame. Bubbles indicate a leak. Check that
the connection is not cross-threaded and that it is tight. Perform
another leak check. If there is still a leak, remove the cylinder and
contact Coleman for service or repairs.
• Use as a cooking appliance only. Never alter in any way or use with
any device or part not specifically designed and sold for this product.

• Clean stove frequently to avoid grease accumulation and possible
grease fires.

http://www.coleman.com/coleman/images/pdf/2000000117.pdf

You may want to rethink your plan...
If you want I can provide you pictures of a smoldering pile of tooth pics that once was a church where someone temporarily set up propane stoves so they could cook food for some special event they were having...
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Old 02-05-2010, 06:06 AM  
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yes, always use an outdoor appliance...outdoors.
I had mice eat my rubber hose to the tank, thankfully the gas was turned off and I did not hit the garage door opener and find my garage at the neighbors house.
I did something as simple as store my bbq in the garage...I would never put one in the house.

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Old 02-05-2010, 07:33 AM  
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Not to mention the fact that gas is dangerous and some of these products manufactured with the use of a cartridge in mind weren't made to be used with 20 lb cylinders or any other type of device.

What your really asking for is a fire or an explosion. Take a cruise through a burn center and see if this is really something you think is worth the $20 bucks for the hose adapter.

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Old 02-05-2010, 09:27 AM  
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Ilyaz:

No, there aren't any valves on the adapter hose, but you screw the big plastic nut onto the VALVE at the top of your propane tank. So, besides the controls on your camp stove, you should also shut the propane off at the tank valve. (and, if it wuz me, I disconnect the hose at the tank for all the time it takes) Otherwise you run the risk of propane leaking into your house through that stove, and that can have an ugly ending.

If burning the propane indoors depletes the amount of oxygen in the air in the cooking area, then continued burning of the propane is going to result in carbon monoxide being formed instead of CO2. If you're intent on going ahead with this against all the warnings, make sure you install a carbon monoxide detector in the cooking area so that you'll have something to tell you when the situation is becoming dangerous. Better yet, save up all the McDonalds, Burger King and Pizza Hut coupons you get in the mail and use them during the kitchen renovation.

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Old 02-05-2010, 08:36 PM  
ilyaz
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I found this on Amazon:

Amazon.com: Safety Siren Combination Gas Detector Model HS80504: Home Improvement

Does anyone has any info about effectiveness of these?

Also, I appreciate other people's comments about safety. Clearly, I don't want our house to blow up or ourselves to get poisoned by CO2. However, I'd like to understand better why this stove is inherently more dangerous if used indoors than a regular gas stove (suppose I connect it to a standard small canister rather than to a large tank through an adapter) . Is it because this one does not have a pilot light while a regular stove does?

Thanks!



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