AD-1 Draft Inducer - What a difference. Chimney liner next?

AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: daluds On: Sun Mar 20, 2011 10:52 am

Installed a Tjernlund AD-1 draft inducer for the DF520. I also sealed off the boiler room from the rest of the house, and put in a fan blowing fresh air into the room. The draft is great now, and what a difference in how the boiler runs. It stays burning with temps in the 50s now. I get -0.04 with the AD-1 set to low. I can run it faster, but felt this was good enough to keep the DF520 running in warmer weather.

Only issue I have is what to do when I need to switch to oil when I travel for work. The AD-1 has a big 2" hole around the motor shaft for the fan so suspect I can not turn off the fan when I switch to the oil burner since fumes will come out. Not sure the AD-1 can take the smoke stack temps with the oil burner? I'll have to replace the AD-1 section in the smoke stack with a new section when I switch to oil.

I am also considering installing a chimney liner to help with the draft. Does anyone have any experience with chimney liners? Does the liner just stop at the bottom of the breach where the horizontal flue intersects to the vertical flue to the boiler? I don't see a way to get a tee into the chimney, and still need to drop debris in the ash pit.

I believe a better solution is to install a chimney top draft inducer instead of a smoke pipe draft inducer. Does anyone have a recommendation on chimney top draft inducers? I found this one from fieldcontrols.

http://www.fieldcontrols.com/chimneytop.php

http://www.ddchem.com/Chimneydraftinducer.pdf
This link is broken, either the page no longer exists or there is some other issue like a typo.


Thanks,
Dave
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daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: stoker-man On: Sun Mar 20, 2011 6:55 pm

Google Olympia or Olympic chimney liners in Scranton, PA. The liner is supported from the top of the chimney and can end anywhere inside the chimney. It should definitely increase your draft. The T is inserted from the inside of the house with a clever clamping system. You'll need some room below your outlet if you use a T. Otherwise use flexible liner.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: daluds On: Sun Mar 20, 2011 7:11 pm

Stoker-man,

I didn't adjust the damper after installing the AD-1, and it was pulling air into the chimney. I changed the weight on the damper so it just pulls up a bit with the stoker off. It reads now -0.06 draft instead of -0.04. What should I set the draft too via the damper with the stoker off or idle?

Thanks.
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: stoker-man On: Sun Mar 20, 2011 8:02 pm

The stoker must be running and the flue warmed up before adjusting. Negative .03-.05 is fine after a few minutes of running.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: Rick 386 On: Mon Mar 21, 2011 1:00 pm

daluds wrote:.........
I am also considering installing a chimney liner to help with the draft. Does anyone have any experience with chimney liners?.....

Thanks,
Dave



Yep, I had a horrible incident with a liner. :mad: After 5 years, the SS liner collapsed into the flue partially clogging it up. Most liners cannot handle the acidic nature of coal burning appliances and their resultant ash. Come spring time or whenever shut down occurs, moisture will react with the ash turning it into acid thereby eating at the liner.

Do a search for flue liners and you will find a plethora of responses. (I always wanted to use that word. :D )




Rick
Rick 386
 
Stoker Coal Boiler: AA 260 heating both sides of twin farmhouse
Hot Air Coal Stoker Stove: LL Hyfire II w/ coaltrol in garage
Coal Size/Type: Pea in AA 260, Rice in LL Hyfire II
Other Heating: Gas fired infared at work

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: Rob R. On: Mon Mar 21, 2011 1:07 pm

Dave, why do you think you need to line the chimney? Did you ever get your other chimney issues straightened out? I seem to remember a big gap next to your thimble, and something weird with the cleanout door.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: stoker-man On: Mon Mar 21, 2011 4:00 pm

Rick, was your liner 316 Stainless, built for coal?
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: Rick 386 On: Mon Mar 21, 2011 4:27 pm

Stoker-Man,

Yes it was. It was Homesaver Ultra Pro 316 ti per the label on the liner itself.

Full post is here including some pics in page 1 : SS liner woes




Rick
Rick 386
 
Stoker Coal Boiler: AA 260 heating both sides of twin farmhouse
Hot Air Coal Stoker Stove: LL Hyfire II w/ coaltrol in garage
Coal Size/Type: Pea in AA 260, Rice in LL Hyfire II
Other Heating: Gas fired infared at work

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: Berlin On: Mon Mar 21, 2011 5:09 pm

stainless steels fail quickly with coal use, even 316ti. I've seen it on this site, and i've seen it in person. Stainless is not an appropriate long-term chimney material for venting coal appliances and it's barely adequate with anything other than wood. I've seen 316 pinhole and corrode even with heating oil appliances. Liner mfg'rs either don't know or don't care that stainless isn't an appropriate liner for coal; they just want to sell as many as they can before stainless liner failures start becoming apparent in the years ahead.
Berlin
 
Hot Air Coal Stoker Furnace: Will-Burt Combustioneer 77B
Coal Size/Type: Ohio BITUMINOUS pea stoker coal

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: vermontday On: Tue Mar 22, 2011 5:59 am

I put a liner in when I just had the oil boiler. I was running my Buderus oil boiler with low stack temperatures and the paint was coming off my chimney from the moisture.
When I installed the EFM, I couldn't get enough draft with the liner. I took the liner out and the draft has been great.
vermontday
 
Stoker Coal Boiler: EFM 520

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: stoker-man On: Tue Mar 22, 2011 7:30 pm

The stuff I used was Olympia Rhino Rigid with the forever warranty. So, if it gets holy, bring it! Really, I don't want to do that job again. I hated every minute of it.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: daluds On: Thu Mar 24, 2011 10:44 pm

Okay - I'll pass on the liner idea. The AD-1 seems to be working, but will test it more with the hotter weather. Does anyone know if the AD-1 can be used with the oil burner? Just leave it on all the time as with the coal?

Thanks for the replies.

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: SMITTY On: Thu Mar 24, 2011 11:28 pm

Here's some 304 stainless pipe used as a chimney connector pipe from my stove. This happened after 6 months in my damp basement without cleaning. Those stains are from a baking soda/water mixture. Seemed to cause even more rust, so I don't use any water anymore to clean:

Image
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: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: daluds On: Fri Mar 25, 2011 9:49 pm

Vermontday - How do you like the Buderus boiler?

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: AD-1 Draft Inducer - What a difference. Chimney liner next?

PostBy: daluds On: Wed Apr 13, 2011 9:56 pm

The AD-1 draft inducer on the smoke pipe works great, but would a chimney top draft inducer be better option for switching from coal to oil? Anyone recommend a chimney top draft inducer?

Thanks,

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520