You can call it as you want however it is Butane
Butane is used for domestic heating and cooking
same goes for bots and campers and not the Propane.
Because of safety feature, Butane is much lower pressure
and higher density than the Propane.

wrote in message ...

On Wed, 20 Jan 2016 14:21:31 -0800, "Tony944" wrote:

Natural gas or Butane/liquid gas???

In North America it's either Natural gas or Propane.