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Author Topic: optimizer 250 nozzle  (Read 12973 times)

slimjim

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Re: optimizer 250 nozzle
« Reply #15 on: May 08, 2013, 07:12:31 AM »

Check to see if it is the newer version with the replacable nozzle, if it is simply smack it with a hammer and chisel on the side where it is thin and it will break free from the mortar, take out the peices and replace it with the new drop in nozzle, no need to remortar it. you may very well have gotten a poorly mixed batch of cement as they typically do not wear out for about 30 cords of wood. if it is one of the older units then PM me with your contact info and I can explain your options
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Schavis

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Re: optimizer 250 nozzle
« Reply #16 on: October 16, 2017, 02:50:07 AM »

Wondering if this would work - nozzle is shot, so maybe instead of refractory, you just put in a really heavy metal plate in the bottom of the furnace with a slot in it the same size as the nozzle opening?  would this work? maybe not as efficiently as a full fix, but not sure how to do the refractory thing, but a cutting torch - that's a different story...
input is appreciated.
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coolidge

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Re: optimizer 250 nozzle
« Reply #17 on: October 16, 2017, 03:50:24 AM »

Some people have done the steel nozzle, from what I hear they wear out a little faster. I used to have a picture of the refractory brick nozzle, will see if I can dig it up later.
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hondaracer2oo4

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Re: optimizer 250 nozzle
« Reply #18 on: October 16, 2017, 04:23:29 AM »

Over at hearth forum many people have gone with a replaceable steel nozzle that they drop over the refractory. Seems like the consensus is that stainless holds up best, guys are getting a couple seasons out of them. I would think that the more refractory left the better combustion since the refractory itself aids in the secondary combustion.
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jrider

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Re: optimizer 250 nozzle
« Reply #19 on: October 16, 2017, 08:32:04 AM »

Great question Schavis.  I'm not the most industrial guy out there and probably among the least in this forum so I have thought about this idea as well just haven't asked yet.  So from the little feedback so far, it seems like a doable idea. 

The smaller the plate the better though?  What kind of thickness is suggested?
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hondaracer2oo4

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Re: optimizer 250 nozzle
« Reply #20 on: October 16, 2017, 08:46:46 AM »

I believe 1/2" stainless. As far as width I don't remember.
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coolidge

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Re: optimizer 250 nozzle
« Reply #21 on: October 16, 2017, 06:22:11 PM »

I used to use the thickness of the poker that came with the stove. 5/8   3/4 maybe
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E Yoder

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Re: optimizer 250 nozzle
« Reply #22 on: October 16, 2017, 06:34:22 PM »

I made one once just to play with it. 1/8" thick stainless lasted more than one season. So 1/4" should last several. You won't cut stainless with a cutting torch though I'd think. Plasma or angle grinder.
Mild steel would burn up in a few months I'd guess.

Cut out a hole as big as the original hole was.
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mlappin

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Re: optimizer 250 nozzle
« Reply #23 on: October 16, 2017, 08:01:05 PM »

You need to use unobtanium, will last longer than the stove, check Ebay.
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jrider

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Re: optimizer 250 nozzle
« Reply #24 on: October 26, 2017, 02:28:10 PM »

I'm currently trying to figure out a plate to put in place of a nozzle.  I'm looking at half inch stainless steel about 12" wide by 18" long.  My nozzle area is so far gone I can't measure the dimensions for the slot.  I was thinking 2"x8".  Does this sound about right?  Also, what kind of price am I looking at?
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hondaracer2oo4

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Re: optimizer 250 nozzle
« Reply #25 on: October 26, 2017, 04:47:38 PM »

2 inches sounds way to wide.
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jrider

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Re: optimizer 250 nozzle
« Reply #26 on: October 26, 2017, 05:56:51 PM »

So what's the correct measurement?
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coolidge

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Re: optimizer 250 nozzle
« Reply #27 on: October 26, 2017, 06:28:43 PM »

I always used the thickness of the poker that came with boiler. I think that was 5/8"
7/8?
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jrider

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Re: optimizer 250 nozzle
« Reply #28 on: October 27, 2017, 04:36:01 AM »

Ok maybe I will split the difference and go with 3/4"?  Also, does the 8" in length sound about right?
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coolidge

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Re: optimizer 250 nozzle
« Reply #29 on: October 27, 2017, 06:19:42 PM »

That should work.
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