Loosing Draft

Loosing Draft

PostBy: blrman07 On: Sun. Feb. 26, 2017 9:12 am

I have been noticing that my stove has been getting sluggish. Slow to start and slow to respond. I pulled the stove pipe expecting to find it partly clogged but that wasn't the case. The base of the chimney was open and I had a decent draft I thought.

Yesterday I went up on the roof suspecting the chimney had a problem. I have been here 5 years and who knows how long it had been since the chimney was cleaned. I thought I saw and obstruction so I lowered a drop light down the chimney and it got stuck about 1/2 way down. A drop light got stuck!!! :shock: The chimney had a buildup at the halfway point for about 3 feet down that narrowed the opening to only about 4". :mad:

I got my brush and it wouldn't fit in the chimney. I had to sit and clip the wire brushes so I could get it past 1/4 the way down. I finally got it to punch through the buildup of hardened flyash. I pulled out 3/4 of a five gallon bucket of ash that I had brushed off the chimney walls. I put everything back together and fired up the stove this morning on wood.

Before I knew it I had 750 on the griddle and it was blazing hot. I had to close off the primary air damper and close the front doors good and tight to get it to slow down. The stove hasn't ever worked this good since the day I installed it. Now I know. Having never cleaned the chimney I didn't know what good performance was. :D
Hand Fed Coal Boiler: Bucket a Day
Hand Fed Coal Stove: Vigilant Casting 2310
Coal Size/Type: Pea/Nut/Wood in the VC and anything that will fit in the Bucket a Day. It's not fussy.

Re: Loosing Draft

PostBy: StokerDon On: Sun. Feb. 26, 2017 9:20 am

Good catch there Larry!

Just goes to show, you never really know what's inside until you have a look yourself.

Just in time for this more Winter like weather that just blew in.

Stoker Coal Boiler: BairMatic BMC-500 with Van Wert VA400 Stoker, Gentleman Janitor GJ-671/EFM S-15 stoker, Van Wert VA-600
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

Re: Loosing Draft

PostBy: windyhill4.2 On: Sun. Feb. 26, 2017 9:25 am

My guess would be that flyash would never stick to a chimney that only sees coal fires. I believe the wood fires create sticky creosote on the chimney walls that the flyash sticks to. Good catch & now enjoy the souped up hot rod,just don't get too carried away with the high performance setup. :P
Stoker Coal Boiler: 1960 EFM520 installed in truck box
Hand Fed Coal Stove: Crane 404 with variable blower
Coal Size/Type: 404-nut, 520 rice ,anthracite for both

Re: Loosing Draft

PostBy: Sunny Boy On: Sun. Feb. 26, 2017 9:32 am

Rev. Glad you got it cleared and back to safe running ability.

I'm wondering why, in 5 years, you could get fly ash to build up inside a chimney like that. :shock:

In 12 years, several times I've had to run a brush up to clear out early-season squirrels nests of leaves, but not once does fly ash come down with the nest bits.

And it's not like fly ash doesn't make it to the chimney. Beginning of each season, I have to shovel out most of a coal bucket of fly ash out of the bottom of the chimney through the cleanout door.

Just wondering why it would stick to the walls up in your chimney, but not in mine ????

Sunny Boy
Hand Fed Coal Boiler: Anthracite Industrial, domestic hot water heater
Baseburners & Antiques: Glenwood range 208, # 6 base heater, 2 Modern Oak 118.
Coal Size/Type: Nuts !
Other Heating: Oil &electric plenum furnace

Re: Loosing Draft

PostBy: blrman07 On: Sun. Feb. 26, 2017 9:35 am

Who knows what has been burned in that chimney. It's the original chimney from when the house was built in 1895. Back in the day they probably burned mostly coal but also anything with BTU value. The chunks I knocked out was reddish fused fly ash. I didn't find any "traditional" creosote but it was probably absorbed by the ash. Add a layer of creosote and the flyash stuck to it making ash chunks. Anyway it's open now and working great. :)
Hand Fed Coal Boiler: Bucket a Day
Hand Fed Coal Stove: Vigilant Casting 2310
Coal Size/Type: Pea/Nut/Wood in the VC and anything that will fit in the Bucket a Day. It's not fussy.

Re: Loosing Draft

PostBy: Lightning On: Sun. Feb. 26, 2017 10:20 am

Does your chimney have a cap?
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size

Re: Loosing Draft

PostBy: Doby On: Sun. Feb. 26, 2017 11:29 am

I found dropping a good sized chain down can loosen that stuff in old chimneys
Hot Air Coal Stoker Stove: Alaska Kast console and Alaska Channing III
Coal Size/Type: Rice
Other Heating: oil but not much

Re: Loosing Draft

PostBy: davidmcbeth3 On: Sun. Feb. 26, 2017 1:52 pm

Coal Size/Type: nut/pea/anthra
Stove/Furnace Make: Hitzer
Stove/Furnace Model: 503

Re: Loosing Draft

PostBy: corey On: Sun. Feb. 26, 2017 2:14 pm

glad you got it fixed and blazing again.
Hand Fed Coal Stove: USS Ashley coal stove
Coal Size/Type: Eastern KY bituminous