Top Vent or Back Vent? Harman Mark III

Top Vent or Back Vent? Harman Mark III

PostBy: captcaper On: Fri Jun 06, 2008 12:47 pm

Curious as too pros and cons of these two types of venting? I know that a top will give better clearance's but on this stove will it make a difference with burning,etc.?
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Re: Top Vent or Back Vent? Harman Mark III

PostBy: Wood'nCoal On: Fri Jun 06, 2008 10:19 pm

The Harman Magnafire Mark Series stoves are back vent only and operate very well in my (biased) opinion.
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: Top Vent or Back Vent? Harman Mark III

PostBy: bksaun On: Fri Jun 06, 2008 10:35 pm

Wrong Woodn coal, my MKIII is a top vent, it cost extra to order them like that, they don't seem to advertise that option.

BK
bksaun
 
Stoker Coal Boiler: Hybrid, Gentleman Janitor GJ-6RSU/ EFM 700
Hand Fed Coal Stove: Hitzer 503
Coal Size/Type: Pea Stoker/Bit, Pea or Nut Anthracite
Stove/Furnace Make: Hitzer/ EFM-Gentleman Janitor
Stove/Furnace Model: 503 Insert/ 700/GJ-62

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Re: Top Vent or Back Vent? Harman Mark III

PostBy: Wood'nCoal On: Fri Jun 06, 2008 10:50 pm

I stand corrected yet again. :doh:

I read the post and never heard or saw a top vent. I went to Harman's website to make sure.

You are correct, they don't advertise it.

I will now slither quietly into the background on this one. :out:

I should have posted "The Mark stoves are available in top vent configuration?".
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: Top Vent or Back Vent? Harman Mark III

PostBy: bksaun On: Fri Jun 06, 2008 11:01 pm

Don't feel bad, I didn't know until I bought my used MKIII and noticed it was a little different than the ones in pictures.

BK
bksaun
 
Stoker Coal Boiler: Hybrid, Gentleman Janitor GJ-6RSU/ EFM 700
Hand Fed Coal Stove: Hitzer 503
Coal Size/Type: Pea Stoker/Bit, Pea or Nut Anthracite
Stove/Furnace Make: Hitzer/ EFM-Gentleman Janitor
Stove/Furnace Model: 503 Insert/ 700/GJ-62

Re: Top Vent or Back Vent? Harman Mark III

PostBy: captcaper On: Sat Jun 07, 2008 7:52 am

I bought the top vented one yesterday. It was the floor model. He went out back to see if he had any in stock and came back and asked if I want a back or top vented. He only had the back vented ones out back boxed. I didn't get a manual or any accessories if their were anything included. I wanted a top vent for clearance issues when given the choice.

I noticed the web site and brochures had the rear vent and I am wondering if I got an older model and the rear vent is a newer better design.???

My last stove was a Plymouth Chubby and was a good stove for 14yrs until I sold it. It had a small top loading door too.

I've read accounts here on the shaker system breaking on the Harman. I hope It doesn't break for a while for me. The stove is heavy..don't want to have to bring it to a welder in the middle of winter.

I bought it because I like the shaker system over the Cubbys. Rocker vs flat 1 piece back and forth a couple of inches. I had to use the poker alot up threw the bottom with door open and filled the room with ash dust. I see the grates get jammed sometimes with the Harman but I'm willing to put up with that. I can always go back to the Chubby.

I'm glad I flound this site. Their wasn't anything like this back when I burnt coal. No internet.
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Re: Top Vent or Back Vent? Harman Mark III

PostBy: Wood'nCoal On: Sat Jun 07, 2008 8:52 am

You won't be disappointed with the Harman. It is a fine stove.

The issues with the grates jamming are due to inferior quality coal that forms rock hard clinkers. I had problems like that before switching to high quality deep-mined coal.

Good luck with your new purchase!
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: Top Vent or Back Vent? Harman Mark III

PostBy: captcaper On: Sat Jun 07, 2008 9:15 am

My local guy has Blaschek? I believe it's called. Is this a good coal?
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Re: Top Vent or Back Vent? Harman Mark III

PostBy: EasyRay On: Sat Jun 07, 2008 12:56 pm

I've burned Blashak Coal for quite a few years now and have not had any problems. I use bagged nut and pea from them. The other good thing is, my supplier is only about two miles from my home.
EasyRay
 
Hand Fed Coal Stove: Harman TLC 2000
Coal Size/Type: Pea,Nut or Stove

Re: Top Vent or Back Vent? Harman Mark III

PostBy: LsFarm On: Sat Jun 07, 2008 1:03 pm

Hello captcaper,, I have a suggestion.. The Harman shaker mechanism allows moving the grates far enough that the gap opens enough that the whole fire can be dumped into the ashpan..

So.. while your stove is empty.. take a look through the open door, and move the shaker handle.. you want to NOT be able to let a piece of coal about half the size of a golf ball fall through the gap... I suggest using a piece of chalk on the side of the stove body,, and mark the limits of how far to move the handle.. without opening the gaps too far [and either jamming the grates or dumping the fire]...

Then, later in the burning season when you have the amount of handle 'stroke' memorized, you can wash the chalk off the side of the stove if you want..

Just an Idea that may save you some future aggravation..

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: Top Vent or Back Vent? Harman Mark III

PostBy: captcaper On: Sat Jun 07, 2008 2:11 pm

Thanks for the tip. I'm going to love this grate system. I saw one once on an old palor stove the had the grates that revolved around like an axle. You turned the crank on the side. I guess if you got a jam you would just have to back up. I believe 2 of the 4 grates rotated in opposite directions.

I look forward to burning again as much as it's work. But I'm so mad at diesel prices etc. that I'm revolting and helping us keep the heating bill under control.
Did you see the news yesterday? Oil made the highest jump in price in one day in it's history? Isreal says it's going to attak Iran and Iran can screw up the flow threw the straights.

All the stove guys up here in Northern NH are out straight with installs,etc. One store actually said it's been so crazy.
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Visit Hitzer Stoves