At 07:19 PM 9/9/2009, Alan Felder wrote: >Anyone familiar enough with these brass fittings to say if the hole is just >a hole, or is it supposed to have some quartz fitting inside the hole? >Dometic no. 24 jet. I'd be pretty surprised if it did, in fact I can say categorically not. I've looked at them under 40x and it's a pretty small hole but I've seen no sign of a ruby or anything else there. I have some jewelers-size welding tips of which the smallest is ruby. It's no tiny piece, the orifice is pierced in it and that's that. Must be 1/16" across. The stuff's cheap, wouldn't be worth their manufacturing effort to put the absolute minimum possible size in it. > Somewhere I read that the jets have some very small >insert of quartz or something, which would make the flame smaller I >suppose. Actually a smaller hole would make it leaner. If you cut air and gas down proportionally it would be smaller but keep the same mixture. A tip if it doesn't like to run at high altitude -- turn the gas pressure up a couple of inches W.C. Dometic used to have a high-altitude jet, but no longer. > I have looked at mine with a microscope and don't see how there Just for interest, what sort of scope and illumination? Yours, David |
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