Only electric equipment carries a rating for Class 1 Division 1, or Class 1 Division 2, is safe and specifically designed to be around flammable gas. Even if heat does not get to the temp where butane combusts, even turning a dial or flipping a switch on electronics which are not designed to be around flammable gas can cause a spark and therefore cause butane to ignite.
Especially if you are using odorless butane (which you should be), you can't smell it, and butane is heavier than air so it pools along the ground. Even 1 single can of Butane could cause significant burns, harm and damage if it were to ignite, so I always recommend leaving butane extraction to those in properly designed rooms and facilities with the proper equipment.
In a professional butane extraction lab, there are numerous safe guard systems in place to prevent explosions from even being possible, and in California for example, all butane labs must be inspected by system engineers who are ASME certified AND approved by the local fire marshal for safe operation. All electronics in the "control room" or nearby area are required to be UL listed for C1D1 environments, including lights switches, sockets, pumps, etc. Generally there are gas detection alarms that sense even small amounts of butane, far below LEL (lower explosive limit) which if signaled, will generally cut most power to the room instantly and also generally will be attached to an emergency fan evacuation system which will force air exchange very quickly. Even things like restricting the use of foot powder in shoes is part of professional lab SOPs because foot powder can be an insulator and help the body build up static which can also cause butane to explode. Even Electric STatic Discharge clothing is worn in most of these environments and some clothing type materials are restricted due to the high potential of generating static.
Butane is a great gas for making extracts, but because it is extremely dangerous to use due to its flammability, I generally recommend you REALLY do your research before getting into butane extractions. There are a lot of people who buy these closed loop systems and then use them in unsafe environments and those are ticking time bombs waiting for an accident.
Especially if you are using odorless butane (which you should be), you can't smell it, and butane is heavier than air so it pools along the ground. Even 1 single can of Butane could cause significant burns, harm and damage if it were to ignite, so I always recommend leaving butane extraction to those in properly designed rooms and facilities with the proper equipment.
In a professional butane extraction lab, there are numerous safe guard systems in place to prevent explosions from even being possible, and in California for example, all butane labs must be inspected by system engineers who are ASME certified AND approved by the local fire marshal for safe operation. All electronics in the "control room" or nearby area are required to be UL listed for C1D1 environments, including lights switches, sockets, pumps, etc. Generally there are gas detection alarms that sense even small amounts of butane, far below LEL (lower explosive limit) which if signaled, will generally cut most power to the room instantly and also generally will be attached to an emergency fan evacuation system which will force air exchange very quickly. Even things like restricting the use of foot powder in shoes is part of professional lab SOPs because foot powder can be an insulator and help the body build up static which can also cause butane to explode. Even Electric STatic Discharge clothing is worn in most of these environments and some clothing type materials are restricted due to the high potential of generating static.
Butane is a great gas for making extracts, but because it is extremely dangerous to use due to its flammability, I generally recommend you REALLY do your research before getting into butane extractions. There are a lot of people who buy these closed loop systems and then use them in unsafe environments and those are ticking time bombs waiting for an accident.
