Which gas for flame fast torch

[Abbie T]

Hello, I'm new to this forum and would love some advice.
I have a flame fast mouth blown torch which I have always run off my household supply of gas. It has NG stamped onto it, which I assume stands for natural gas.
I have just moved in to a studio and have no gas supply, so need to run my torch off bottled gas. Can I use this torch with a bottle and if so, would I need propane, butane or lpg. I'm so confused, please someone, help me.
Many thanks in advance x

[china]

Just to confuse you more you could use any one of the three you mention, some people say that Propane burns "hotter" in my experience there is little difference, I would think
that LPG would available in larger sizes, therefore more economical. I am guessing you would also need a regulator as the pressure from large tanks needs to be reduced.

[ps_bond]

Ask Flamefast. They do different jets for different gases; my T4 had a NG jet; I sent it back to them and had it redone with a propane jet instead. Pressures and flow rates differ for different gases.