@Simon Morriss ..Mad, isn't it?? !!!!.. This is what you're getting into!! You won't be able to pump as far as if the mantle was on, but you will certainly get a good idea of whether to carry on with a mantle? You will see the 'flamelets' start to 'lift-off' if you pump too hard, as the mantle won't be there to contain them...hope that makes sense
@Gary Waller You're not the only one, I just happened to look at some of my burners yesterday and noted the various differences.
Yes most lamps will run without a mantle. Some may require a fairly low pressure and continuous heat on the generaor/vaporiser. It is a good way to test the function of generators and burners without the expense of wasting mantles. ::Neil::