Stove Specifications

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rberq
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Hand Fed Coal Stove: DS Machine 1300 with hopper
Coal Size/Type: Blaschak Anthracite Nut
Other Heating: Oil hot water radiators (fuel oil); propane
Location: Central Maine

Post Sat. Oct. 16, 2010 3:28 pm

The Harman discharges air from the blower at a downward angle. To determine where the hot air path intersects the floor, release one standard cat and see where she picks for her nap.
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jpete
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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 Sat. Oct. 16, 2010 4:41 pm

Is that a Mark I?

What's the thermo damper on the side?

CapeCoaler
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Stoker Coal Boiler: want AA130
Hand Fed Coal Stove: DS Machine BS#4, Harman MKII, Hitzer 503,...
Coal Size/Type: Pea/Nut/Stove
Location: Cape Cod, MA

Post Sat. Oct. 16, 2010 6:21 pm

Mark I Modified Class...
There is a thread on it in here somewhere...
I think it is a Hitzer bimetallic damper...

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WNY
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Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
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Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon
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Post Sat. Oct. 16, 2010 7:31 pm

Yup, same here when we first put ours in, this one is classic...

franco b
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Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
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Post Sat. Oct. 16, 2010 7:43 pm

rberq wrote:The Harman discharges air from the blower at a downward angle. To determine where the hot air path intersects the floor, release one standard cat and see where she picks for her nap.
I love science.

rberq
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Posts: 5044
Joined: Mon. Apr. 16, 2007 9:34 pm
Hand Fed Coal Stove: DS Machine 1300 with hopper
Coal Size/Type: Blaschak Anthracite Nut
Other Heating: Oil hot water radiators (fuel oil); propane
Location: Central Maine

Post Sat. Oct. 16, 2010 8:21 pm

jpete wrote:Is that a Mark I? What's the thermo damper on the side?
Yes, Mark I. Click to see the thread:

Retrofit Hitzer Thermostat to Harman

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jpete
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Hand Fed Coal Stove: Harman Mk II
Coal Size/Type: Stove, Nut, Pea
Other Heating: Dino juice
Location: Warwick, RI

Post Sun. Oct. 17, 2010 9:08 am

Cool idea. Has it been working well for you?

How is ash build up in front of the holes?

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SMITTY
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Stoker Coal Boiler: Patriot Coal - (custom built by Jim Dorsey, Taunton MA - RIP 4/18/13)
Hand Fed Coal Stove: Harman Mark III (SOLD!)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler
Location: West-Central Mass

Post Sun. Oct. 17, 2010 10:12 am

Good idea! I missed that thread back then. I assume you just crank the original inlet shut, correct?

I have 4 standard cats. One of them enjoys laying in the coal! :lol:

rberq
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Posts: 5044
Joined: Mon. Apr. 16, 2007 9:34 pm
Hand Fed Coal Stove: DS Machine 1300 with hopper
Coal Size/Type: Blaschak Anthracite Nut
Other Heating: Oil hot water radiators (fuel oil); propane
Location: Central Maine

Post Sun. Oct. 17, 2010 4:03 pm

jpete wrote:Cool idea. Has it been working well for you?
How is ash build up in front of the holes?
Yes, it works well. The holes are above the ash pan. Tops of the holes are about an inch below the grates, and ash build up has not been a problem.
SMITTY wrote:I assume you just crank the original inlet shut, correct?
Often I leave the original inlet open about 1/2 turn or a little less, to allow minimal air even if the thermostat plate is completely closed.
I have toyed with the idea of rigging a room thermostat to a small fan, which would blow on the bi-metal thermostat, so when room temperature drops the fan would come on, cool the bi-metal strip, and open the air damper to make the stove hotter. Because coal responds so slowly, I don't know how well it would work. Might cause big room-temperature overruns. Maybe one of those new electronic thermostats that automatically learns the right heat anticipation values....

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