I picked up a HASAG polar doughnut lamp and am trying to light it. How does one pre-heat this type of lamp?
You need a preheat cup for this lantern, but the most time it is missing. The cup you can see , where the mantle will be fixed. Do you know how to light a pressure lamp?
I have fettled several table lamps and lanterns, but this is my first doughnut. You are right the preheater cup is missing. I fashioned a quick and dirty replacement out of a tin can. I assume my chances of finding an original part are about zero. It is also missing the globe and holder. I had a go at lighting it, but the flame was pretty yellow. Might just be that I didn't pressurize it enough. I will have another go later on. Apologies for the crappy pics, my camera is broken. I will post some better ones in the reference gallery when I get it sorted.
Hello The chances are small but they are there! A reproduction is also possible but not cheap. The hanging loop and the fuel cap are also not original. Otherwise, nice lamp (with the can as preheating cup) :-) Let it shine!! Greetings Michael
I am still getting problems with a yellow flame. I think maybe the jet is worn out and is making the mixture too rich. Will any of the Petromax jets fit?
these are very cool looking! But i cant get used to a fuel tank above a burning mantle on a lamp mounted over your head!
Yes I can see your concern but you have to remember that these manufacturers were trying to sell this stuff and it is not really very good marketing practice to set fire to your customers houses or blow customers up with exploding lamps because such happenings tend to make headline news and put future customers off so generally they tend to be safe enough in use. Have a little faith and believe they do what they should and not what you fear. ::Neil::
I was able to get a NOS jet from Germany (for a HASAG lantern), and it seems to have improved things. The flame is not as orange as before. However I still cannot seem to get this lamp to run properly. If I keep the side door open, the mantle is dim and the outer part of the flame is orange. If I close the door then the flame becomes blue but weak and the mantle doesn't glow at all. Eventually the lamp extinguishes itself. If I blow gently into the door then the mantle glows brightly. It looks as if there is not enough air getting into the fuel/air mix.
Sounds like you have a fuel starvation issue here. Plenty of pressure and a small weak flame that goes out means lack of fuel to me. I would check the fuel is flowing freely by removing the jet and seeing how much flows out. Also check the mixing tube is clear and clean. I remeber th efirst Hasag do nut I owned had to have the fuel feed drilled out. Took me ages to slowly drill a cycle brake cable down it. I am not sure what size a Model 1 is. Can you measure the air gap because that will indicate the cp. Around 10 to 12mm is 200-250 and 13-15mm is 300 to 500 ish. Could be you have fitted a 500 cp jet in a 250 cp lamp and that will cause running problems. ::Neil::
I checked the fuel flow and it looks okay, the pipes are nice and clear. The air gap is around 15 mm, and 500 cp sounds about right for the overall size of the lamp. I am not sure what the cp of the jet is. Apparently it was for a 551 lantern. I have a new theory and that is the mantle is too small. I think there is so much gas coming out of the burner it is passing straight through the mantle and burning outside. If I run the lamp at a very low pressure it seems to run okay with a nice blue flame but it is not very bright. I used a butterfly 500 CP mantle but I think I need something larger.
Hi James, I have a Polar 5a and it's rated at 800-1000 cp, i have a Butterfly 500-600 mantle on it and it performs very well,very very bright.... Paul
The pressure guage has 0 to 3 Kg per ? and it runs at 0.8 for indoor use and 1.5 for outdoor use....Paul
