Dust in Blower Inlet- Pre-Filter?

Modern and vintage hand fired coal stove are similar to a wood stove and in some cases can burn either. They need to be regulated and fed by hand usually every 12 to 24 hours depending on your usage. They require no power to operate making them ideal for rural settings with long power outages.
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Uglysquirrel
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Stove/Furnace Model: Pocono

Post Mon. Feb. 23, 2009 8:39 pm

Just felt a little less airflow coming out of the Mark II blower, saw that there were strings of dust in the wire grate inlet, took these out and we're back to normal. I constantly have to remind myself of these little maintenance things. One time the dust was imbedded in the wheel, cleaned that as well.

Any ideas out there regarding some sort of blower pre-filter?

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009to090
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Stoker Coal Boiler: EFM 520 HighBoy
Hot Air Coal Stoker Stove: DVC-500 x 2
Coal Size/Type: Anthracite Rice
Location: Warrenton, NC

Post Mon. Feb. 23, 2009 8:49 pm

Yeah, I also noticed that on my DVC-500 as well. No filter for the blower, and it really builds up dust on the "squirrel cage". I was thinking of cutting a piece of furnace filter to fit over the opening.
Chris F.
If it ain't broke, don't fix it!

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CoalHeat
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Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert
Location: Stillwater, New Jersey

Post Mon. Feb. 23, 2009 9:34 pm

Take the ring off that holds the wire mesh on. Place a piece of AC filter under the ring and on top of the mesh. Easy to keep clean with a vacuum or damp thumb.
Heating a circa 1832 farmhouse with a Harman Magnafire Mark I & a 1959 EFM 350 (heating DHW).
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009to090
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Stoker Coal Boiler: EFM 520 HighBoy
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Coal Size/Type: Anthracite Rice
Location: Warrenton, NC

Post Mon. Feb. 23, 2009 9:41 pm

Wood'nCoal wrote:Take the ring off that holds the wire mesh on. Place a piece of AC filter under the ring and on top of the mesh. Easy to keep clean with a vacuum or damp thumb.
Yep, Great Idea. Unfortuneately, the DVC500's blower does not have any screening, just a wide open hole. I'm going to have to create my own ring, held in place by a couple butterfly-topped bolts. :idea: Easy to play with this summer.
If it ain't broke, don't fix it!

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CoalHeat
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Joined: Sat. Feb. 10, 2007 9:48 pm
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert
Location: Stillwater, New Jersey

Post Mon. Feb. 23, 2009 9:45 pm

Oops---sorry. It shouldn't be too difficult to make up some kind of fixture to hold the filter.
Heating a circa 1832 farmhouse with a Harman Magnafire Mark I & a 1959 EFM 350 (heating DHW).
100% Oil Free!
"It's what we learn after we think we know it all that counts."

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009to090
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Stoker Coal Boiler: EFM 520 HighBoy
Hot Air Coal Stoker Stove: DVC-500 x 2
Coal Size/Type: Anthracite Rice
Location: Warrenton, NC

Post Mon. Feb. 23, 2009 9:51 pm

Wood'nCoal wrote:Oops---sorry. It shouldn't be too difficult to make up some kind of fixture to hold the filter.
No problem. I'm a tinkerer, so its just another adventure :D

Chris F.
If it ain't broke, don't fix it!

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WNY
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Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
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Post Tue. Feb. 24, 2009 7:15 am

we used to get cat hair caught in the pre-screen on the convection blower all the time.
- Dave
Hyfire I & Keystoker 90K heating an 1890 Victorian
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009to090
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Stoker Coal Boiler: EFM 520 HighBoy
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Location: Warrenton, NC

Post Tue. Feb. 24, 2009 7:28 am

WNY wrote:we used to get cat hair caught in the pre-screen on the convection blower all the time.
My FireplaceXtrordinaire has a huge pre-filter. Almost 1 sq ft. Yeah, it traps unbelievable amounts of dirt, dust, and most of all... dog hair and wood chips. I clean it once a month. Just goes to show, no matter how much you vacuum to keep the floor clean in front of stove, theres always some ash/dirt/hair that gets pulled in before it even has a chance to settle to the floor.

Chris F.
If it ain't broke, don't fix it!

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coalkirk
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Post Tue. Feb. 24, 2009 7:29 am

Also take your blower off and look at the curved vanes of the squirrel cage fan. They will also be full of $hit. Take the fan off and use a brush and or an air compressor and clean it off. Makes the fan noisy and less effective.
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Burning rice coal in a 1981 EFM DF520, nut coal in a hand fired Jotul 507.

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009to090
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Stoker Coal Boiler: EFM 520 HighBoy
Hot Air Coal Stoker Stove: DVC-500 x 2
Coal Size/Type: Anthracite Rice
Location: Warrenton, NC

Post Tue. Feb. 24, 2009 7:35 am

coalkirk wrote:Also take your blower off and look at the curved vanes of the squirrel cage fan. They will also be full of *censored*. Take the fan off and use a brush and or an air compressor and clean it off. Makes the fan noisy and less effective.
Thats true. Lets see..... my DVC-500 has now officially been running for 1 month. Already pulled fan out of distribution blower, due to built up dust. I just used high press air (240psi) to clean mine. These things should be built with a pre-filter. :idea:

Chris F.
If it ain't broke, don't fix it!

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