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magnehelic
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#10
06-14-2017, 07:10 AM
Anyone interested in one of  link these?  they're still in packaging, never used.  i have 2 available.  $40 delivered in the US.  should fit into a large flat rate.. possibly a medium.

https://www.amazon.com/Dwyer-Magnehelic-...B009P9EF62
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#11
06-15-2017, 04:36 PM
Boy I thought these would blow someone's skirt up.
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jlanciani Offline
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#12
06-15-2017, 05:47 PM
Pretty limited use if they are the 0-1" range you linked to.
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gMike Offline
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#13
06-15-2017, 05:53 PM
Pardon my ignorance but what are they used for?
Mike


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brofessor Offline
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#14
06-15-2017, 06:39 PM
I used a 0-1" Dwyer for draft on my stoked stove. sure you're using the bottom end for .02-.05. I paid $110 for mine from the local fireplace center
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Rob Young Offline
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#15
06-15-2017, 06:46 PM
(06-15-2017, 05:53 PM)gMike Wrote: Pardon my ignorance but what are they used for?

Stack pressure in a combustion stack for instance.
Don't sweat the petty things and don't pet the sweaty things. -- G. Carlin
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jlanciani Offline
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#16
06-15-2017, 06:53 PM (This post was last modified: 06-15-2017, 06:53 PM by jlanciani.)
(06-15-2017, 05:53 PM)gMike Wrote: Pardon my ignorance but what are they used for?

I use a 0-5" magnehelic to monitor the filter in my dust collector. When the pressure gets to 3" I know it's time to clean it.
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#17
06-16-2017, 06:58 AM (This post was last modified: 06-16-2017, 07:00 AM by closed for business.)
Oops. 0-25 inches of water scale
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fredhargis Offline
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#18
06-16-2017, 07:35 AM (This post was last modified: 06-16-2017, 07:35 AM by fredhargis.)
(06-15-2017, 06:53 PM)jlanciani Wrote: I use a 0-5" magnehelic to monitor the filter in my dust collector. When the pressure gets to 3" I know it's time to clean it.

Same here, I also have a 2" one I use with a pitot tube to calculate air flow in the DC ducting.
I started with absolutely nothing. Now, thanks to years of hard work, careful planning, and perseverance, I find I still have most of it left.
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