Hi, I have the priviledge of "road-testing" one of Gary's latest silent dampers. This is the smallest to date and is intended for No.96 size paraffin stoves, and the smaller petrol (gasoline) stoves. Today I tested the new mini-damper on an Optimus No.80 from the late 1950s/ early 1960s. Here are some photos: I used the stove and mini-damper to make a cup of Turkish Coffee: The burner was easy to prime with the silent damper in place, and the power level very controllable : Excellent performance with this Op.80 stove, and really quiet! Well done Gary, Take a Bow! Best Regards, Kerophile.
That Gary sure is onto it. It does look like the silent caps that he has made could be extra efficient compared to the usual flame spreader plates fitted to those burners.The gas looks as though it is super heated before it exits the burner cap,giving a cleaner burn.It would be interesting if a test could be done.
threedots has a very good idea--a check on the carbon monoxide levels with and without a cap would be very helpful to those of us who still camp with classic stoves..
Check out Roger Caffin...Research Scientist, stovie, mountain walker.. http://www.backpackinglight.com/cgi-bin/backpackinglight/stoves_tents_carbon_monoxide_index.html EDIT: I don't know if the link will work without subscribing to the site. It's worth the money, I've found... Al
I with linux_author, I have a 123R without the concentric ring in the burner basket so Gary's silent damper won't rest properly inside it. I've been watching the Ebay auction on this at it's now at over $53.00!
Hi, Not all the small stoves, on which I tested Gary's mini-damper, had concentric rings within the burner bell to act as a support. Nevertheless I found that if you carefully set the damper level in the bell it works great. In use the bell expands slightly, the damper "drops down" a bit, and on cooling after use the damper is gripped in the burner bell quite firmly. I will check later and note those burner which didnt have the internal ring. Best Regards, Kerophile.
Hi, I have just checked. The Svea 123R which I used for the trials of Gary's silent damper does not have a ledge to locate the damper. I therefore balanced it level and it "self-gripped" once the stove came up to temperature. The other stoves I used for tests, the Op.80, Op.8R. Russian Primus Touristy, and Pr.96 all possesed internal concentric rings, which I used to locate the damper. Hope this helps. Best Regards, Kerophile.
Hi Keith, this is a prototype. You will have to join the queue and just hope that Gary, a CCS member, goes into production with the design. Best Regards, Kerophile.
would this work on a coleman 530? would be a great additon as mine sound pretty loud. great piece, if you do another run I have an optimus 80 that could use one
Most SVEA 123's appear to have burner heads with a concentric ring and on the 123R it is absent. There may be exceptions as one of my 123's has a burner head without the concentric ring - but I suspect the head could have come from a R model.
Hey, Snowgoose, I'm thinking that the heads are different in the 123 and the 123R versions, and that they are not interchangable. My "R" version stoves have a larger hole than the regular 123 head does. For what it's worth, I've just found a couple of regular 123's without the concentric ring, too. The older ones seem to have it, the later ones, just before the "R" made it debut, seem not to have it. I'm guessing though.... Take care, and God Bless! Every Good Wish, Doc
Carbon Monoxide For those who do not have a subscription, check this article concerning carbon monoxide https://classiccampstoves.com/threads/85 Sometimes its good to be near the bottom of the list. AR
My early Sievert 123's do not have the concentric ring and have a "collar". I also have a 123 where the burner has concentric rings and a burner head without the "collar", that is similar to the SVEA 123R but with a smaller diameter hole. Look at the attached photos..As you can see the Svea 123 on the left has concentric rings on th burner head. The engraved Sievert 123 on the right does not. Now look at the burner bell photos: Top left is from the SVEA 123 on the left of the photo previously mentioned.The bell on the bottom left is from the engraved 123. The next photo shows the plates and are in the same position as previous photo. I now suspect that the "collarless" burner head from one of my 123's is not from an R but was the immediate predecessor to the 123. The photos left to right: Top left: SVEA 123 Top right: SVEA 123R Bottom left: Svea 123, bottom right Svea 123
Hi and oops I may have confused the issue!! The 123 (on the left in the photo showing the actual stoves and top left in the other photos) has concentric rings on the burner head but does not have a concentric ring within the burner bell..it is, as you can see, "collarless".The other 123's as you can see both have a concentric ring within the burner bell - and neither have any concentric rings on the burner head.