Coleman Dual fuel lanterns they have a few in their range and some better ones than these (nightstar) Anyways i have 2 of them one single mantle and a double...

Used them indoors a couple of times (and many many hours when camping) and not had any issues (i always stand them on a metal tray indoors with nothing flammable near fire extinguisher handy et all or hang off a hook in the workshop ....
They can be run on specific coleman fuel (aka white gas / Napthia) or Unleaded fuel ((using unleaded stinks so if on that its outdoors only ime and it can overtime clog the "generator tube" was reading some sites when i got them and regular users were saying if running on unleaded 3-4 fills then a fill of coleman stuff helps keep it clear ((first lighting with colman fuel after unleaded it smokes a fair bit till its cleared the crap out))
they come with a fancy self breathing filter funnel
its almost as simple as fill with fuel, pump up, and light ..
lit with a long taper or a Gas match they initally flare a bit until the heat of the mantle heats the generator tube superheating the fuel vapour before its burnt
Like all lights of this ilk do not touch the mantle and they will last a long time only had to replace one mantle when i stabbed it with the gas match by mistake and the transit box keeps them safe in storage
this should give you some idea on how bright it is vs the double flouressent in the workshop

http://www.gooutdoors.co.uk/campingaz-m ... rn-p141911
I got them for £30 and £40 from a local department pile high sell cheap place about 10 years ago...
thought it might interest some here