Coal Chubby

Coal Chubby

PostBy: Fiziksgeek On: Mon Aug 11, 2014 9:25 am

Hello all, first post here. I am considering becoming a coal burner, and an looking for some advice. This will be our 5th winter in out house (~3000 sqft Including finiehd basement). I have a jotul wood insert in the family room which we put it 2 seasons ago., and love. Now that our youngest is no longer a baby, just turned 3, we really want to encourage the kids to play in the basement, so we adults can get some peace and quiet! It's finished, but unheated. When we moved in, there was a coal chubby in the basement. We had all the chimney's cleaned and inspected, and the guys pulled a couple of 5 gallon buckets of creosote out of that chimney. I do not know if the original owner was burning lots of wood or what, but it was a mess. The piping only went up past the damper, and was in pretty rough shape. We decomissioned the chubby at that time.

I want to get heat in the basement with as little out of pocket cost as possible. Hooking up the coal chubby seems to be the best way to do that since I already have the stove, and would not need to add a SS liner to the chimney. Buying a couple tons of coal is cheaper than a liner would be, let alone a wood stove. The wife is a bit skeptical about coal, and honestly, I would prefer wood, as that is my confort zone. My thought is, let's try it for a season and see how we do.

I was considering have the stove reconditioned by Lary Trainer, but since this is a "trial" season, I think I'll wait. I need to replace the mica, but as far as I can tell, everythign else is in working order. The door seals look good, and the shaker shakes, just some surface rust. I'm going for function over looks right now. If we like it, then we can get her all spiffed up!

Questions are:

1. Does this sound like a reasonable plan?
2. What else do I need to be inspecting to make sure the stove is in operating condition?
3. What piping to I need to connect the stove to my fireplace (I think I need a turn damper, and barometric damper, and enough piping to get it up past the smoke chamber)

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Fiziksgeek
 
Hand Fed Coal Boiler: Coal Chubby
Other Heating: Jotul Rockland insert

Re: Coal Chubby

PostBy: ONEDOLLAR On: Mon Aug 11, 2014 9:41 am

Hi!

WELCOME TO NEPA!!!

I think you should replace the mica and gaskets on both doors and install a MPD. I would order the gaskets and mica from Larry. They are cut perfectly to size by him and are very easy to install. Even if you think the gaskets look good too much air is an enemy of a coal fire. Baro? Yes and No. Put it to you this way. It won't hurt anything if you install one.

The creosote that you mentioned was from burning wood. Coal does not produce creosote.

On the Chubby webiste there are some instructions from installing a Chubby into a fireplace. Believe me it isn't hard to do.

If you will give us an idea of your location there very well could be a NEPA member here who can help you out if you need it. I think you are on the right track. Once you experiance the long lasting heat of coal I suspect you will say goodbye to your Jotul insert as well. Many many of us here on NEPA are former wood burners. :D
ONEDOLLAR
 
Hand Fed Coal Stove: 2014 Chubby Prototype
Baseburners & Antiques: Crawford #2 Base Heater
Coal Size/Type: Nut/Anthracite

Re: Coal Chubby

PostBy: titleist1 On: Mon Aug 11, 2014 9:43 am

Welcome to the forum!! Congrats on your decision to try out the black rocks!

Others that have a chubby will jump in with suggestions I am sure, they are an enthusiastic bunch!!

Your plan sounds like a good one to me, try it for a year with minimal $$ outlay and then decide where to go from there. You may like it so much over wood burning that the jotul gets replaced!

The chubby users will be able to give specifics on what to check on your stove to make sure it is as air tight as possible. Not sure where you are located or what you have available regarding coal, but I would suggest buying bags of coal to try initially before getting any large quantity.

A couple CO monitors are a must and I recommend getting a manometer so you can keep an eye on draft numbers while making adjustments.
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

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Re: Coal Chubby

PostBy: ONEDOLLAR On: Mon Aug 11, 2014 9:48 am

titleist1 wrote:A couple CO monitors are a must and I recommend getting a manometer so you can keep an eye on draft numbers while making adjustments.


Don't forget these.....
ONEDOLLAR
 
Hand Fed Coal Stove: 2014 Chubby Prototype
Baseburners & Antiques: Crawford #2 Base Heater
Coal Size/Type: Nut/Anthracite

Re: Coal Chubby

PostBy: Lightning On: Mon Aug 11, 2014 10:03 am

I take it that the chubby will be on a separate flue than the wood burner in the family room?

Just make sure the stove pipe (probably 6 inch diameter) from the chubby is sealed to the chimney so that the chimney cannot pull any air from the room. A manometer (device that measures negative pressure in the flue pipe) will be a big help with your learning of the burn. They are cheap and easy to install. You may opt to put some kind of fence around it so little ones don't get curious and lay their hand on it, but I'm sure you thought of that already.. X2 on the carbon monoxide detectors. One on each floor close to sleeping quarters.

If you install both a manual pipe damper - MPD (turn damper) and a barometric, make sure the baro is above the MPD.. Its somewhat unusual to use both. I'm a baro guy. Baro dampers are good at limiting chimney draft which results in steady heat output.

Once you see how nice it is to use coal you'll probably wanna replace the wood burner.. :D

I just saw the posts above.. lol you guys are on it :)
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut/Stove Size Mix

Re: Coal Chubby

PostBy: SheepDog68 On: Mon Aug 11, 2014 10:23 am

Wives always are suspicious of coal until about the second day the stove is running well!

We burned wood for over a dozen years before trying coal 4 yrs ago and I can't imagine going back.

The wife tells me several times every winter it's the best thing I ever did for her as she likes subtropic temps in the house and coal makes it cheap and easy to do.

Coal is a different beast and there is a learning curve so having someone set up your stove or at least looking at it might be a good idea.

I would not be surprised if by next winter you want to put in a Hitzer 503 to take advantage of having a hopper in the place of your Jotul. My hopper fed Alaska Kodiac gets the grates shaken and filled up once a day until it gets below 0 F and then it's twice a day. I have even been gone for two days and come back home to a warm house and a stove still burning.

SD
SheepDog68
 
Hand Fed Coal Stove: Alaska Kodiak
Coal Size/Type: Harmony Nut, Lehigh Nut
Other Heating: Happy thoughts, good wool and a little propane.

Re: Coal Chubby

PostBy: Fiziksgeek On: Mon Aug 11, 2014 10:36 am

Thanks guys. to answer some questions, and ask some more...

First off, I have smoke and co detectors on each floor already, but will likely add one more near the stove, as the one already in the basement is on the opposite end of the house near the oil boiler.

The oil boiler in the basement and the wood insert in the family room on the first floor share a chimney with 2 flues. The chubby will be a single flue chimney on the opposite end of the house.

From the recommendation, I'll need the 3 piece mica replacement, and the dor gasket kit from Larry ($25 each on his site)
http://chubbystove.com/gallery1.htm

For piping, any reason not to use the single wall stuff from the big box stores?

Pipe example, not sure exactly what lengths I'll need yet http://www.homedepot.com/p/qv/100159454

I should at a minimum get above the smoke chamber correct? going higher will give better draft?

manual damper http://www.homedepot.com/p/DuraVent-DuraBlack-6-in-x-5-in-Single-Wall-Chimney-Stove-Pipe-Damper-6DBK-DS/202269768?N=5yc1vZc6hg

Barometric damperhttp://www.homedepot.com/p/Vogelzang-Barometric-Damper-BD-06/203630384?N=5yc1vZc6hg

Can the barometric damper be installed horizontally?

DoI need a block off plate? Or can I just surround the vent pipe with rockwool?

I may very well end up liking coal a lot. However, wood is nearly free most of the time, and since I am still relatively young (36), It'll be a few years before I need to hang up the saw!
Fiziksgeek
 
Hand Fed Coal Boiler: Coal Chubby
Other Heating: Jotul Rockland insert

Re: Coal Chubby

PostBy: franco b On: Mon Aug 11, 2014 11:10 am

The Field Rc barometric damper is better and more sensitive and yes it can be installed horizontally. I don't think you need a manual damper as well. Use one or the other, not both. Spend the money on a manometer. Dwyer mark 2 model 25. It will allow you to set the baro accurately for uniform draft and uniform burn. Block off when burning wood with tinfoil to lessen danger of feeding air to a creosote fire in chimney.

I think stuffing insulation to seal the fireplace opening is enough.

2 feet above the smoke chamber is good. Cheap pipe OK.

Burning wood is fine if you enjoy it, but if you do it in the Chubby use plenty of air and burn clean with no long air restricted fires. Fine for those warmer days in the fall. Will soot up the mica though.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: Coal Chubby

PostBy: D-frost On: Mon Aug 11, 2014 11:56 am

Welcome Fizik,
On Larry's web page in the left column, you will find literature on installing the Chubby into a fireplace. It's pretty straight forward. Also, at the top right of this homepage, you will find a "search" block. Type in Chubby stove, and enjoy the read. There is a ton of knowledge here. Don't be shy, ask.
Cheers
D-frost
 
Hand Fed Coal Stove: Chubby
Hand Fed Coal Furnace: Yukon Eagle I (multi-fuel oil, wood/coal)
Coal Size/Type: nut/Reading anthracite
Other Heating: Jotul #118 wood burner

Re: Coal Chubby

PostBy: Fiziksgeek On: Mon Aug 11, 2014 12:25 pm

Thanks! I've been reading everything I can find for the last couple weeks. Thought I would make my own post for some reassurance for experienced folks! Helps me battle the skeptical wife.....she seems to be skeptical of most things I do...I think that belongs in a differnet forum though!

D-frost wrote:Welcome Fizik,
On Larry's web page in the left column, you will find literature on installing the Chubby into a fireplace. It's pretty straight forward. Also, at the top right of this homepage, you will find a "search" block. Type in Chubby stove, and enjoy the read. There is a ton of knowledge here. Don't be shy, ask.
Cheers
Fiziksgeek
 
Hand Fed Coal Boiler: Coal Chubby
Other Heating: Jotul Rockland insert

Re: Coal Chubby

PostBy: michaelanthony On: Mon Aug 11, 2014 12:43 pm

[quote="Fiziksgeek"]" ........near the oil boiler......"[/quote]

A coal boiler may be a nice option next year! Welcome and congratulations on your decision to convince the Mrs. how right you are. My wife love our coal stoves and hates the oil company, it took her one winter, it took me until I knew how to keep a fire going. Teaching a child how to split and stack wood should be considered cruel and unusual punishment. :lol:
michaelanthony
 
Hand Fed Coal Stove: Vigilant 2310, gold marc box, vogelzang pot belly coat rack
Coal Size/Type: Pea, and a little nut
Other Heating: Very cold FHA oil furnace

Re: Coal Chubby

PostBy: Fiziksgeek On: Fri Aug 15, 2014 9:10 am

I have some time to spend on the project now. Might run down to the store later and look at pipe. I think I'll order the Field Control 6RC from amazon:

http://www.amazon.com/gp/product/B001TL50NQ/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=A2VCOZMMU5A8B1

It looks like it just goes into the open end of a T-pipe?

It looks like there is a manual damper already on the output of the stove. So I plan to comes out with a T, which will house the barometric damper. Then I will use another T to turn up the chimney with a cap on the bottom, and enough pipe to get above the smoke chamber. Am I missing anything esle?
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Here are some additional pics of the stove. It's a 1979 stove apparently! Looks like the seals are in very good condition. The grate moves easily, not rusted in place.
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Fiziksgeek
 
Hand Fed Coal Boiler: Coal Chubby
Other Heating: Jotul Rockland insert

Re: Coal Chubby

PostBy: McGiever On: Fri Aug 15, 2014 9:21 am

Yep, your sketch looks fine. And Amazon has the Dwyer Mark II Manometer there also. ;)
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: Coal Chubby

PostBy: Fiziksgeek On: Fri Aug 15, 2014 12:15 pm

McGiever wrote:And Amazon has the Dwyer Mark II Manometer there also. ;)


Already in my cart!
Fiziksgeek
 
Hand Fed Coal Boiler: Coal Chubby
Other Heating: Jotul Rockland insert

Re: Coal Chubby

PostBy: warminmn On: Fri Aug 15, 2014 3:40 pm

As for the manual damper, it wont hurt a thing being there and if you have a real strong draft like me you may be glad you have it, or should I say, both dampers.

Even if your wood is cheap or free, you will enjoy the coal, especially those years from hell like last winter was everywhere.
warminmn
 
Hand Fed Coal Stove: Chubby Junior, Efel Nestor Martin
Coal Size/Type: nut and stove anthracite. Soft coal
Other Heating: wood

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