Nozzle repair

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woodsmaster

Minister of Fire
Jan 25, 2010
2,885
N.W. Ohio
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my nozzle is just as bad on my biomass 60, i have a steel plate over mine ,works ok for now, when you repaired it did you only repair the top of the slot, the inside of my nozzle is still eroded and widened out, i wonder how much that effects the performance, i've got a new nozzle, just hesitant to replace it after reading how hard it is, i still get ok gasification with the steel plate for now
 
I had to replace nozzle in my Vigas 80. It has two. I used a hammer drill to honey cone nozzle some first. After about three, half inch holes it was cracking good. Then used a slide hammer i made with a hook on end. Put it through nozzle and slid up the hammer. Out came nozzle, vacuumed, dropped in new one. It was easy, about 20 minutes total. how long does a patch last? Foamit Up
 
The middle don't seem to be to widened out on mine, but is starting to show some wear. I patch it before the wear gets to far down. the refractory cement does get pushed down when I patch it so I think the slot is close to the same width as new. the bottom is starting to get rounded off but it still gasses fine. when I do change the nozzle I will do an firebrick or steel plate overlay.
 
I had to replace nozzle in my Vigas 80. It has two. I used a hammer drill to honey cone nozzle some first. After about three, half inch holes it was cracking good. Then used a slide hammer i made with a hook on end. Put it through nozzle and slid up the hammer. Out came nozzle, vacuumed, dropped in new one. It was easy, about 20 minutes total. how long does a patch last? Foamit Up

I've been patching around every 7 full cord. First patch was after around 16 cord This nozzle has seen around 30 cord and this is my third patch. I might change it in the spring or I might just patch it again. Have to see how it looks I guess.
 
I've been patching around every 7 full cord. First patch was after around 16 cord This nozzle has seen around 30 cord and this is my third patch. I might change it in the spring or I might just patch it again. Have to see how it looks I guess.
I like that vs replacing the whole nozzle. Any special brand of refractory cement?
 
Very impressive on the patching WM. Now that I know how the nozzle and side plates come out I'm sure I can replace it must faster... 2-3 hours.... Ugh.

BTW, I'm very pleased with the performance and ease to produce the protective plates I cut from fireplace hearth refractory. The material I'm using is 5/8" thick, cast with imbedded wire, and easy to cut with a circular saw and masonry blade. Better than my 3/16" steel plate of last year. I've already flipped the side protective plates to give a new, fresh nozzle edge.

Man my 60 is rockin this year and I'm loving storage.
 
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image.jpg Mecos red devile
 
Got it at Menards. Says only to go 1/8 inch thick but I've had great luck with it much thicker. They also offer casting cement. The refractory cement dries really fast. about two minutes and any on your putty knife is dry. A couple hours after the patch I made a fire. !
Edit : The tub cost about $15.00 and I used aprox. 1/3 of it for the repair. The tub of casting cement is around 3 gallons i think, for $30.00
 
Nice repair job.

I noticed, while grinding down my new nozzles to fit, that they're cast with little bits of metal. It's not a mesh or anything like that--just bits of metal in the mix. Not sure what purpose they serve.

My nozzles weren't nearly as eroded as your first pic, and I noticed a nice gain in efficiency and gasification with the new ones. So I think the nozzle opening size and shape is pretty important.
 
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They are referred to as "needles" and thy provide a matrix within the block to hold everything together like steel mesh in concrete. They are stainless steel.
 
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