torch flame colors/ how do they do it?

[madman]

Can not find it. Saw where diff chemicals were added to bubbler to create diff. colors of flame on a hho torch. This would be very helpfull for bench testing a gen. esp. in winter where it would generate some heat from the flame and the unit.

If I can see the flame then I know all is working AND the gas is being consumed/ HOD. There is no issue about venting gas out and no worry about it being accidentially ignited. This will allow me to condition and test at work and stay warm.

Does anyone know about these chemicals?

[chichwh3628]

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