Down draft

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Lazer415
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Post by Lazer415 » Mon. Jan. 27, 2020 8:29 pm

I notice when I load my stove up for the morning/night I will get a down draft before the coal starts to ignite. Should I be loading it up more gradually? Meaning not putting so much coal on at once? I am getting 10-12 hr burn times when loading 50/60 lbs. I burn pea coal and usually throw a few scoops of nut on top. I am heating a newer home about 3,000 sq ft including basement. I have a combustion blower that I pretty much have the intake covered. I only open up the intake for the combustion blower right before I shake it and right after I load the stove with coal. I tried to be thorough in my post...

 
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Post by franco b » Mon. Jan. 27, 2020 8:37 pm

A combustion blower will tax the ability of a chimney to exhaust that quantity of air. I would suggest you lower the volume.

 
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coaledsweat
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Post by coaledsweat » Mon. Jan. 27, 2020 9:10 pm

Do you shut the blower off before you open it?


 
Lazer415
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Post by Lazer415 » Mon. Jan. 27, 2020 9:22 pm

I don’t shut it off but I close the air intake for the combustion blower.

 
CorrosionMan
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Post by CorrosionMan » Tue. Jan. 28, 2020 6:34 am

Question for the pro's... With a combustion blower, how in the world do you get a downdraft?

 
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McGiever
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Post by McGiever » Tue. Jan. 28, 2020 10:45 am

CorrosionMan wrote:
Tue. Jan. 28, 2020 6:34 am
Question for the pro's... With a combustion blower, how in the world do you get a downdraft?
Not a pro, but draft naturally being a negative value and then being mechanically overwhelmed, in this case, to become a positive value is likely what here is refered to as a 'down-draft'

Another factor, perhaps unknown, may be a build up of stove pipe obstruction due to mechanically forced fly ash into horizontial pipe sections to gradually reduced flow capacity out of chimney...certaintly this needs explored.
Would guess there is NOT a manometer being use with this install..


 
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Post by ddahlgren » Fri. Jan. 31, 2020 10:14 pm

Is the air to feed the blower coming down the chimney? Possibly open a window to see if the down draft stops.

 
Lazer415
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Post by Lazer415 » Fri. Feb. 07, 2020 7:56 am

I figured out the issue. I was covering my entire bed of ambers when reloading. This in turn created a mini explosion of the gasses. Now I leave a bit of the ambers exposed and this ignites the gasses.

 
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freetown fred
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Post by freetown fred » Fri. Feb. 07, 2020 8:01 am

Outstanding L--most times SIMPLICITY works out real well!!!!!!!!!!!!!!!! LOL

 
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buffalo bob
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Post by buffalo bob » Fri. Feb. 07, 2020 3:20 pm

freetown fred wrote:
Fri. Feb. 07, 2020 8:01 am
Outstanding L--most times SIMPLICITY works out real well!!!!!!!!!!!!!!!! LOL
DITTO...

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