,Harman Mark II Hand Fire

Modern and vintage hand fired coal stove are similar to a wood stove and in some cases can burn either. They need to be regulated and fed by hand usually every 12 to 24 hours depending on your usage. They require no power to operate making them ideal for rural settings with long power outages.
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ganzer
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Posts: 2
Joined: Wed. Oct. 03, 2012 11:04 am
Stove/Furnace Make: coal hand free

Post Sun. Oct. 20, 2013 11:18 pm

What is the best size coal to use in Harman markii hand fire. I just installed it and experimented with buckwheat size so far. Seems to run nice bit I don't have experience with coal yet. So I was wondering if anyone has suggestions for me. Thanks

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anthony7812
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Posts: 4851
Joined: Sat. Mar. 12, 2011 2:04 pm
Stoker Coal Boiler: VanWert VA 400
Coal Size/Type: Buck/Anthracite
Location: Colley,Pennsylvania

Post Sun. Oct. 20, 2013 11:55 pm

Fill in your location, it will give us all a better judgement on your climate zone. I prefer to use Nut in my Mark 3 but with the current Blaschak I'm burning thier is alot more pea sizes mixed in. Which is ok this time of year for lower burn temps. Depending on your location Buck my not support the much needed under air flow that a good hot fire needs.
Anthony

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EasyRay
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Posts: 468
Joined: Thu. Nov. 16, 2006 8:44 pm
Hand Fed Coal Stove: Harman TLC 2000
Coal Size/Type: Pea,Nut or Stove
Location: Central Connecticut

Post Mon. Oct. 21, 2013 8:14 pm

ganzer wrote:What is the best size coal to use in Harman markii hand fire. I just installed it and experimented with buckwheat size so far. Seems to run nice bit I don't have experience with coal yet. So I was wondering if anyone has suggestions for me. Thanks
I believe Harman recommends pea,nut,or stove size for that stove.
I have used pea and nut in my TLC 2000 without any trouble. I think the grates are the same as the mark II. But I could be wrong.
Regards, Ray

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titleist1
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Posts: 4404
Joined: Wed. Nov. 14, 2007 4:06 pm
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
Location: Cecil County, MD

Post Mon. Oct. 21, 2013 9:26 pm

during less cold weather folks have burned pea to be able to maintain lower temps and get longer burn times. the nut will burn hotter and burn up faster because the larger size allows more air flow through the coal bed. The stove size is the next step up in heat but again with shorter burn times.

this is just a generalization, your stove / chimney set up will have its own personality with respect to draft which will affect how it does with the different size coal. if possible it is best to burn a few hundred pounds of each size (and from particular breakers) to see what works for you before investing in a couple tons.

i am a little surprised the buck didn't fall through the grates.
I drive a VW TDI, heat my home & workshop with two coal stokers and have two vintage JD diesel tractors....
The EPA just loves me!!

ganzer
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Joined: Wed. Oct. 03, 2012 11:04 am
Stove/Furnace Make: coal hand free

Post Mon. Oct. 21, 2013 10:35 pm

Thanks for your advice. I'm gonna test with the pee and nut. Thanks

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lowfog01
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Posts: 3895
Joined: Sat. Dec. 20, 2008 8:33 am
Hand Fed Coal Stove: Mark II & Mark I
Coal Size/Type: nut/pea
Location: Springfield, VA

Post Tue. Oct. 22, 2013 5:45 am

I use pea in the "tween" months of late Oct and early Apr and a mix of pea and nut for the dead of winter. It works well is easier to dial in on the temperature I want to maintain. Lisa
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jpete
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Posts: 10579
Joined: Thu. Nov. 22, 2007 9:52 am
Hand Fed Coal Stove: Harman Mk II
Coal Size/Type: Stove, Nut, Pea
Other Heating: Dino juice
Location: Warwick, RI

Post Tue. Oct. 22, 2013 6:00 pm

Where do you live? If you're in the VA area with Lisa, pea might be all you need.

Here in RI and north, that won't even take the chill off the house and you'll be shoveling coal like the 3:10 to Yuma.

I'm about ready to start the season here in an hour or so and I start with chestnut and by Christmas, I'll step up to stove coal. Maybe before then if the Farmers Almanac is correct.

The Harman will burn just about anything you shove in there, the question is, will it produce the results you want based on your unique set of conditions.

Don't be afraid to try other sizes and mix and match as needed.
Jeff

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coalcracker
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Posts: 146
Joined: Mon. Jan. 24, 2011 6:33 pm
Hand Fed Coal Boiler: Standard sealed hot water boiler, hand fed
Hand Fed Coal Stove: Harman Mark I Magnafire
Baseburners & Antiques: Lehigh Oak 18, Washington potbelly, Sears Roebuck parlor cabinet, PIttston 6 lid cook stove, vintage combo gas/coal cook stove 4 lid
Coal Size/Type: nut
Stove/Furnace Make: Harman
Stove/Furnace Model: Mark I Magnafire

Post Sat. Dec. 07, 2013 7:23 am

ganzer wrote:What is the best size coal to use in Harman markii hand fire. I just installed it and experimented with buckwheat size so far. Seems to run nice bit I don't have experience with coal yet. So I was wondering if anyone has suggestions for me. Thanks
Burn nut coal, I have a Harman I and a full load of nut coal will burn over 24 hours. The smaller coal burns smoothly but less area around the pieces for air so it doesn't throw as much heat.
Coal stoves without fuel, are heavy, expensive decorations. Are there any coal mines in YOUR home state ? If you talk the talk, you have to walk the walk.

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