Harmon ST8-VF8

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Horace
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Posts: 496
Joined: Thu. Sep. 18, 2008 12:15 pm
Hot Air Coal Stoker Stove: Harman ST8-VF8 / Frankenstove
Location: Central PA

Post Mon. Jan. 16, 2012 12:46 am

smitty01 wrote:thanks horace, my in laws had the newer magnum this ones just a little different. stove was in peices when I got it all together now but I have 2 steel plates 4" x 16" not sure where they go?
My pleasure. Not sure about the steel plates. I can't find anything in the manual relating to them, nor can I find anything on mine that jumps out at me. Are they just solid steel? No mounting holes or anything? Basically rectangular sheets? How thick are they?

I've never had mine completely apart. I usually take off the hopper, the fans, and the ashpan for summer storage, but I've never pulled the stoker assembly out completely. If they go in there somewhere, I probably wouldn't recognize them. But after poking around mine as much as I can with it running (and running hard with this cold snap) I can't see anything resembling what you describe. Is it possible that they belong to something else that they person from whom you bought the stove threw in?

Razu
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Posts: 1
Joined: Mon. Sep. 10, 2012 7:01 pm
Stove/Furnace Make: harman st8-vf8 manual
Stove/Furnace Model: st8-vf8

Post Mon. Sep. 10, 2012 7:04 pm

i need a manual can someone send me a copy please [email protected]

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coalkirk
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Posts: 4712
Joined: Wed. May. 17, 2006 8:12 pm
Stoker Coal Boiler: 1981 EFM DF520
Hand Fed Coal Stove: Jotul 507 on standby
Coal Size/Type: Lehigh anthracite/rice coal
Location: Forest Hill MD

Post Mon. Sep. 17, 2012 8:39 am

I know we are not supposed to put things on the forum for sale that are not our own. But this is such a rare part that I feel compelled to bend(ok break) the rule.
**Broken Link(s) Removed**Old style single piece grate for old ST8-VF8 stoker.

Diana
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Posts: 1
Joined: Fri. Oct. 25, 2013 8:21 pm
Stove/Furnace Model: ST8-VF8. Harman

Post Fri. Oct. 25, 2013 8:27 pm

This stove makes me want to scream!

No place on the net can I find an owners manual...

Anyone have pics of what inside is suppose to look like?

Thanks bunch,

Diana


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Horace
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Posts: 496
Joined: Thu. Sep. 18, 2008 12:15 pm
Hot Air Coal Stoker Stove: Harman ST8-VF8 / Frankenstove
Location: Central PA

Post Sun. Oct. 27, 2013 11:04 am

Diana wrote:This stove makes me want to scream!

No place on the net can I find an owners manual...

Anyone have pics of what inside is suppose to look like?

Thanks bunch,

Diana
Diana:

Check your private messages. Please let us know why you're screaming and we'll try to help. By "pics of what the inside is supposed to look like" do you mean how high the flames are, where the fire is, how much ash at the end on full burn? It's a good stove, if a little cantankerous.

User avatar
Horace
Member
Posts: 496
Joined: Thu. Sep. 18, 2008 12:15 pm
Hot Air Coal Stoker Stove: Harman ST8-VF8 / Frankenstove
Location: Central PA

Post Sun. Oct. 27, 2013 11:12 am

Diana:

Also, this may help with the timers:

As far as the timers go: The first one on the left (ON) controls how long at the beginning of each cycle the feeder motor will push coal into the stove. The middle timer (OFF) controls how long the total cycle is. The right timer (EXTEND) controls how long the distribution fan will run after the ON timer expires (I think - mine usually runs 24/7)

It's not that cold right now, so I have mine set at 1 ON, 10 OFF, 15 EXTEND. My house is not all that big, so your mileage will vary, of course. The T-stat kicks on during the night, but not during the day, which is what I want. At some point, you should run it flat out for a while - either through the t-stat or by setting the timers to 0 - so you can adjust the feed rate. That's the threaded rod that comes straight out the back with the wing nut and the threaded plate thingy (not sure what to call it.) When the stove is running flat out and making a LOT of heat, the coal should burn to ash about an inch or two before it falls off the grate. You don't want to push burning or unlit coal off the end, of course, but you also don't want it to take too long to build up a fire. Make adjustments to this gradually as it takes a while to see the change. As a guide, I set mine with a ruler so that the rod moves from 1/4" to 3/8" each rotation. Shorter when the coal is dry, longer when it's wet. HOWEVER - I think that the previous owner put a new motor on that is slower than the original. Keep an eye on yours!

The lowest that I ever set mine is 1 ON 11 OFF which leaves me a tiny little pot of coals in the back.

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McGiever
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Posts: 6068
Joined: Sun. May. 02, 2010 11:26 pm
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Coal Size/Type: PEA / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek
Location: Junction of PA-OH-WV

Post Sun. Oct. 27, 2013 3:02 pm

Diana wrote:This stove makes me want to scream!

No place on the net can I find an owners manual...

Anyone have pics of what inside is suppose to look like?

Thanks bunch,

Diana
It is an early version of the Magnum Stoker...that owners manual should get you going.
What do you want to know about the inside of the stove?
Some very early ones lacked the "A" Pents and had only a flat shelf thaat was prone to quick flyash build up and restricting or blocking the flue outlet and having carbon monoxide spill into the home...hence the revision in design. Get a CO alarm before using any combustion heating device.

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