Anyone ever try this

Anyone ever try this

PostBy: pa coal cracker On: Sun Sep 21, 2008 8:09 am

I have a Mag stoker on back order since last March. It's possible I could get it by Dec. or Jan. I got a good deal on a Mark II , it's installed and working good, now I'm thinking of hooking them both up, running the Mag. and using the Mark II on real cold days ,and power outages. They would have to be connected to the same chimney. I was thinking of setting them side by side connecting with a tee in the middle and then out the chimney. I am unsure if there's a way to control the draft. and the tee set up in the middle,I don't know if it would work either. I've spent countless hours on this site, but never came across anything like this, there's probably a reason.
Thank's in advance, Craig.
pa coal cracker
 
Stove/Furnace Make: Harman
Stove/Furnace Model: MarkII and Mag Stoker

Re: Anyone ever try this

PostBy: LsFarm On: Sun Sep 21, 2008 9:24 am

Moving this to the ''Venting, Chimneys' etc forum..

You need to make sure you can shut off either stove completely.. you need to have all the chimney draft going to the ONE stove that is in operation, and not have any air from the other stove going up the chimney.

When the stoker is running, this should not be an issue, the Mark II is an airtight stove, just shut the doors and spinner knob.. but there is the slight air gap at the top and bottom of the glass in the door.. probablly not a big problem.

But when burning the MarkII and not the stoker,, sealing the stoker from allowing air into the chimney is a bit more involved,, you need to cover the inlet to the combustion fan, probably just use the existing flapper and cover the inlet completely. But air can also get in through the hopper, so you must keep the cover on the hopper and make sure it fits tight. And then there is the same air gaps at the top and bottom of the door glass.

It probably would be best to have just one stove hooked up at a time, have the unused stove's flue pipe disconnected but already sized and fit so you can swap it into the chimney in a few minutes..

Unless you have a really strong-drawing chimney, you may be creating a low draft situation with the tee'd together flues..

Greg L
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: Anyone ever try this

PostBy: syncmaster On: Mon Sep 22, 2008 8:28 pm

How about putting the extra stove in another part of the house and power venting.
Then you can run both stoves on low and have more even heating.
syncmaster
 
Stoker Coal Boiler: harmanVF3000 Coal/oil option
Coal Size/Type: Rice
Stove/Furnace Make: VF3000
Stove/Furnace Model: Harman VF3000


Re: Anyone ever try this

PostBy: coaledsweat On: Mon Sep 22, 2008 9:20 pm

I have seen 3 appliances in one fairly short chimney and it worked very well, each had it's own thimble though. I think Teeing them into one thimble is asking for trouble, one or both may wind up starving for draft.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Re: Anyone ever try this

PostBy: Wood'nCoal On: Mon Sep 22, 2008 9:30 pm

You need a tall chimney capable of producing a very good draft.
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Re: Anyone ever try this

PostBy: pa coal cracker On: Tue Sep 23, 2008 5:16 am

Yep, the chimney is over 30'. The set up is new, both chimney and stove, I test fired it one time, the draft seemed good Tell me how to connect to chimney, most important how will I set up the baro damper, or dampers?
pa coal cracker
 
Stove/Furnace Make: Harman
Stove/Furnace Model: MarkII and Mag Stoker

Re: Anyone ever try this

PostBy: BIG BEAM On: Wed Sep 24, 2008 7:07 pm

I'll give you my OPINION;
I have my oil furnace and coal furnace both hooked up to 1 chimney in the cellar.I figure that neither makes much soot and NO creosote so it's safe.As long as the draft is good and with 30' of chimney I assume your draft is great. I don't see why it wouldn't work.The baro should be close to the thimble before you tee off to each appliance if your going to use 1 baro or if you use 2 baros as close to the appliance as possible.

But keep in mind I'm a bit of a renegade
DON
BIG BEAM
 
Stove/Furnace Make: USS Hot blast
Stove/Furnace Model: 1557M

Re: Anyone ever try this

PostBy: jimker On: Wed Sep 24, 2008 7:59 pm

Check your local fire code. It is my understanding that only one appliance (i.e. stove, oil burner, etc...) can be connected to a chimney at any given time, even if one is off and/or blanked.
jimker
 
Coal Size/Type: Rice
Other Heating: Propane Hot Air Furnace
Stove/Furnace Make: Harman
Stove/Furnace Model: Magnum Stoker

Re: Anyone ever try this

PostBy: BIG BEAM On: Thu Sep 25, 2008 12:31 pm

Yeah but I use comon sense not what some idiot sitting behind a desk read in a book.I see no danger with a coal furnace and oil furnace connected to the same chimney as long as you maintain them,as you should with any appliance.I've seen oil burners that haven't been cleaned in 8 years and were sooting up the cellar and that's not against any code! :?
DON

Last I knew you could hook up a oil fired water heater and boiler to the same chimney.
BIG BEAM
 
Stove/Furnace Make: USS Hot blast
Stove/Furnace Model: 1557M

Re: Anyone ever try this

PostBy: jimker On: Thu Sep 25, 2008 6:49 pm

Hey big beam, I don't consider myself as a working instrumentation and controls mechanic on industrial boiler room equipment some idiot behind a desk. Ever heard of NFPA? Most likely not. Look it up. I just suggested to Craig that he consider all options. That's the reason why we're all here!! Good luck!
jimker
 
Coal Size/Type: Rice
Other Heating: Propane Hot Air Furnace
Stove/Furnace Make: Harman
Stove/Furnace Model: Magnum Stoker

Re: Anyone ever try this

PostBy: BIG BEAM On: Thu Sep 25, 2008 7:19 pm

Did you write the code?That's who I am refering to!
DON

BTW I'm 3rd generation plumber.(self employed like my dad and his dad)
BIG BEAM
 
Stove/Furnace Make: USS Hot blast
Stove/Furnace Model: 1557M