Thanks

http://www.mudhole.com/Specials/Black-Friday-2012_2/Alcohol-Burner

I found it , denatured alcohol

If you bought one of those, and haven't used it, return it. It is a disaster that's found a place to happen.

Get an infrared heat lamp. More effective, easy to use and control, and no open flame.

I use an extension cord with a built in switch, and three plug head. Plug in a lamp socket and screw in the infrared lamp. On the opposite side of the outlet I have an led night light. It's there to indicated the lamp is on.

Ignoring everything I know about wave propagation and the inverse square law, I bought a 150 watt lamp. I have to be careful with it. When it burns out I'll probably get a 60 watt.

The best thing you can do is learn to apply finish without introducing bubbles in the first place. Granted, it happens and needs to be dealt with but .ghotti is right about not learning to depend on flame. 

Using flame can, and most likely will, unless you're very careful, break your heart at some point.