Chimney Cleaning

Chimney Cleaning

PostBy: Rob R. On: Mon Jun 04, 2012 2:37 pm

I finally decided to have our chimney cleaned...the last of the creosote is officially gone. To my knowledge this is the first time the chimney had been cleaned in 30 years; previously it served a wood boiler. Due to the unusual construction, the only way to brush this flue is from the top...32 feet up. The stuff that came out of it was NASTY. Black powdery soot that reeked like creosote. With the 2 gallons or so of "sweepings" from today's cleaning, I have collected about 10 gallons of debris from the clean-out of this chimney since I started burning coal.

I fired the EFM back up about an hour ago, and so far the draft control seems noticeably more "active". There is an offset in the chimney, and I suspected that old creosote had fallen off the flue tiles and collected at this offset. The man that did the sweeping said it looked very clean from the top down, so I'm thinking most of the debris came from the offset tiles.

Lesson of the day - If you have a chimney that previously served a wood burning appliance, it is a good idea to have it cleaned before or shortly after you switch to coal. If the buildup is especially bad it can peel off in chunks/sheets and cause an restriction.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: Chimney Cleaning

PostBy: 2001Sierra On: Mon Jun 04, 2012 10:08 pm

Early on, 30 years ago I used to brush my chimney yearly when burning with my coal hand fed. Not much came out so just got used to vacuuming out the bottom yearly. Well! In came the new Keystoker 90 stoker. Big surprise after one year I was embarrassed at what came out after year one when brushed :oops: Year 2 when brushed was a mere 2 coffee cans much better. I can sleep better now. Never take chances! Brush no matter what, remember experience comes from bad judgement..
2001Sierra
 
Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
Coal Size/Type: Rice
Other Heating: Buderus Oil Boiler 3115-34
Stove/Furnace Model: Keystoker 90 Chimney Vent

Re: Chimney Cleaning

PostBy: SMITTY On: Mon Jun 04, 2012 11:15 pm

Yeah I finally cleaned mine this spring for the first time since we've lived here (almost 10 years). Ash blew out of the open port in the chimney where I had just removed the connector pipe for the stove, and covered the stove ... and everything within 10' of it with a half inch of super-fine flour like dark grey powder. A combo of flyash & oil soot. Nice! :D

Looked just like those moon pics you see with Armstrong's footprint. I was making prints just like that all around the basement. What a mess! But the chimney is now pulling a .02 at 80° outside, cold! BIG difference. Had to re-adjust the baro after that - thing is constantly open now even on the hottest days.
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler


Re: Chimney Cleaning

PostBy: I'm On Fire On: Tue Jun 05, 2012 6:28 am

I clean mine out after every season and before the new season. I usually do it within a week of shutting down for the summer and again several days before I fire it back up. The second time is pretty pointless but it gives me a chance to see if the liner has deteriorated between burning seasons.
I'm On Fire
 
Hand Fed Coal Stove: DS Machines DS-1600 Hot Air Circulator

Re: Chimney Cleaning

PostBy: Rob R. On: Tue Jun 05, 2012 9:12 am

Hey Smitty, next time put a shop vac hose in the cleanout and stuff an old shirt around it...makes for a lot less airborne "particulates". :D

The vacuum worked well for me, but the filter was sure shot afterwards.

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Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: Chimney Cleaning

PostBy: freetown fred On: Wed Jun 06, 2012 5:07 pm

Hell Rob, send that sucker down here, she's just gettin broke in. :clap: toothy One of them Westinghouse light bulbs would be nice too. :idea: :roll:
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Chimney Cleaning

PostBy: WNYRob On: Sat Jun 09, 2012 11:06 am

When I cleaned my chimney out a few weeks ago, I was expecting just a powdery coating. The fly ash ended up being caked on the sides of my metal flue, took a little effort with the brush to scrape most of it out. Once cleaned, I capped and caulked the top for the summer and put a tub of that dry-absorb stuff being held by a cap at the bottom. I was going to leave the bottom open but I started to notice some rust forming at the bottom with a 50% humidity reading in the basement.
WNYRob
 
Hot Air Coal Stoker Stove: Keystoker Koker controlled with CoalTrol

Re: Chimney Cleaning

PostBy: I'm On Fire On: Sat Jun 09, 2012 2:29 pm

WNYRob wrote:When I cleaned my chimney out a few weeks ago, I was expecting just a powdery coating. The fly ash ended up being caked on the sides of my metal flue, took a little effort with the brush to scrape most of it out. Once cleaned, I capped and caulked the top for the summer and put a tub of that dry-absorb stuff being held by a cap at the bottom. I was going to leave the bottom open but I started to notice some rust forming at the bottom with a 50% humidity reading in the basement.


I think that's what happened to mine. I cove the top of my chimney but have always left the bottom open. The top of my liner looks brand new, the bottom two feet of it; in the house is rusted and pin holed.
I'm On Fire
 
Hand Fed Coal Stove: DS Machines DS-1600 Hot Air Circulator

Re: Chimney Cleaning

PostBy: SMITTY On: Sat Jun 09, 2012 7:07 pm

Yeah I wasn't expecting an ash explosion down below. :lol: I'll have to try that next time - thanks for the tip Rob!



freetown fred wrote: .... One of them Westinghouse light bulbs would be nice too ....

Did you say .... WESTINGHOUSE? :D
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SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler