The company website is  [...]  the 800 number is  1-866-928-2657  The product is fully warrantied for one year after date of purchase.  Have talked with a company technical Rep Jan 2012 via telephone and have learned the following regarding this product.

A - the ignition is created from a crystal, the actual spark of electric that ignites the propane or MAP gas happens when a hammer like device hits the crystal, The crystal will provide between 30,000 to 40,000 sparks for it's expected limit of useability.

B - The O-rings which are in the torch head last for up to 8 years. After that 8 years the O-rings may start to fail due to the rubber compound becoming aged and drying out, So even if your torch head is working and it is 8 years or older do NOT use it, recycle the materials and buy a new one.

C - The tip that actually goes into the propane tank or map tank has a proctectant on the threads to prevent gas leaks  while the torch head is in use. Like using silicone paste or tape on water or gas pipes.  There is a danger if you remove the small tip from the bottom of the torch head = The material which is placed onto the thread in the manufacturing process is crucial to safety, once you remove the tip the sealing material ( unseen to the naked eye ) can travel into the torch head and deteriorate the o-rings inside the torch head which can result in gas escaping the torch head, which can lead to product failure and likely cause harm to you if you are using a torch head that has been tooken apart and then re-assembled. SO DO NOT TAKE IT APART.

D -  If you have problem with a bernzomatic torch head call the 800 number above, talk to a company representative and learn if it is under warranty for an easy exchange where you bought it, or how to get the torch head serviced by their company. They are company that cares for your safety. And they are glad to look into their products that may have problems, to better enable their own manufacturing process, to make a longer lasting product, as well as a more reliable product for the consumer.

E - East coast consumers who wish to have their torch head (which is older than 1 year old) serviced will likely be given an address to send in their torch head to a New York state address where it will be examined to inspect the head, then the torch head will be fixed/ repaired or in the worst case scenario will be contacted by that NY office and told that the product is not salvageable.

F - Remember to always remove torch heads when transporting, and ALWAYS store the cylinders in a cool dry place. NEVER store the cylinder in your home, store the cylinders outside in temperatures below 120 F  ( 49 C ).

G - Never use a cylinder tank while the tank is on it's side or upside down. If you need to have the flame reach a spot that is not accessible with the can standing up, then buy a torch head designed with the rubber hose between the torch head and the cylinder.  To enable operation with the cylinder standing up. Bernzomatic BZ8250HT Trigger-Start Hose Torch  or the Bernzomatic TS839T Swivel Head Torch for slight angles

H - Propane gas is one of the dirtiest gases, and using propane gas through your torch head can lead to the torch head not lasting up to it's potential life expectancy. Map Gas is a cleaner burning fuel which is better to use than propane, with regards to your torch head lasting longer.

Hope this helps you stay safe , KNOWLEDGE IS POWER , Use your noggin and keep yourself safe , Obey these safety guidelines and keep yourself alive and unharmed , Respect the power and dangers of using any potentially dangerous product.

I do own this product - TS4000  Torch Head, Today Feb 5,2012  I placed an older torch head onto a propane cylinder - which is close to being empty, then tried to ignite the propane using a flint spark striker, and could not get the gas to light. I then removed that older head off the cylinder and put on this TS4000 head and with one push of the button the propane lit. I really do believe that this is a better torch head than ones that you have to ignite with a flint striker or Bic lighter. I am Happy that I purchased this item and would buy it again as well as recommend it to friends.
The company website is  [... ]  the 800 number is  1-866-928-2657  The product is fully warrantied for one year after date of purchase. Have talked with a company technical Rep Jan 2012 via telephone and have learned the following regarding this product. A - the ignition is created from a crystal, the actual spark of electric that ignites the propane or MAP gas happens when a hammer like device hits the crystal, The crystal will provide between 30,000 to 40,000 sparks for it's expected limit of useability. B - The O-rings which are in the torch head last for up to 8 years. After that 8 years the O-rings may start to fail due to the rubber compound becoming aged and drying out, So even if your torch head is working and it is 8 years or older do NOT use it, recycle the materials and buy a new one. C - The tip that actually goes into the propane tank or map tank has a proctectant on the threads to prevent gas leaks  while the torch head is in use. Like using silicone paste or tape on water or gas pipes. There is a danger if you remove the small tip from the bottom of the torch head = The material which is placed onto the thread in the manufacturing process is crucial to safety, once you remove the tip the sealing material ( unseen to the naked eye ) can travel into the torch head and deteriorate the o-rings inside the torch head which can result in gas escaping the torch head, which can lead to product failure and likely cause harm to you if you are using a torch head that has been tooken apart and then re-assembled. SO DO NOT TAKE IT APART. D -  If you have problem with a bernzomatic torch head call the 800 number above, talk to a company representative and learn if it is under warranty for an easy exchange where you bought it, or how to get the torch head serviced by their company. They are company that cares for your safety. And they are glad to look into their products that may have problems, to better enable their own manufacturing process, to make a longer lasting product, as well as a more reliable product for the consumer. E - East coast consumers who wish to have their torch head (which is older than 1 year old) serviced will likely be given an address to send in their torch head to a New York state address where it will be examined to inspect the head, then the torch head will be fixed/ repaired or in the worst case scenario will be contacted by that NY office and told that the product is not salvageable. F - Remember to always remove torch heads when transporting, and ALWAYS store the cylinders in a cool dry place. NEVER store the cylinder in your home, store the cylinders outside in temperatures below 120 F  ( 49 C ). G - Never use a cylinder tank while the tank is on it's side or upside down. If you need to have the flame reach a spot that is not accessible with the can standing up, then buy a torch head designed with the rubber hose between the torch head and the cylinder. To enable operation with the cylinder standing up. Bernzomatic BZ8250HT Trigger-Start Hose Torch  or the Bernzomatic TS839T Swivel Head Torch for slight angles

H - Propane gas is one of the dirtiest gases, and using propane gas through your torch head can lead to the torch head not lasting up to it's potential life expectancy. Map Gas is a cleaner burning fuel which is better to use than propane, with regards to your torch head lasting longer. Hope this helps you stay safe , KNOWLEDGE IS POWER , Use your noggin and keep yourself safe , Obey these safety guidelines and keep yourself alive and unharmed , Respect the power and dangers of using any potentially dangerous product. I do own this product - TS4000  Torch Head, Today Feb 5,2012  I placed an older torch head onto a propane cylinder - which is close to being empty, then tried to ignite the propane using a flint spark striker, and could not get the gas to light. I then removed that older head off the cylinder and put on this TS4000 head and with one push of the button the propane lit. I really do believe that this is a better torch head than ones that you have to ignite with a flint striker or Bic lighter. I am Happy that I purchased this item and would buy it again as well as recommend it to friends.