Finally Installed Manometer!

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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ridgeracing
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Hand Fed Coal Stove: DS Machine Stove
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Post Sun. Dec. 22, 2013 2:21 pm

ridgeracing wrote:With temps outside at 60 and house at 74 I turned stove down to 240deg. last night. This morning my draft was just under .02 so I opened mpd 100% to obtain a solid .02 draft. I will monitor it threw out day to insure I have draft at that low of a burn. If for some reason it drops to .01 I will turn stove up. Does any one find this wrong/bad. Any suggestions?
Temps are stil at 58-60 outside, draft actually increased to just under .03 ! Still looking good

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Sunny Boy
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Hand Fed Coal Boiler: Anthracite Industrial, domestic hot water heater
Baseburners & Antiques: Glenwood range 208, # 6 base heater, 2 Modern Oak 118.
Coal Size/Type: Nuts !
Other Heating: Oil &electric plenum furnace
Location: Central NY

Post Sun. Dec. 22, 2013 2:40 pm

That's good. Hopefully that will increase to levels you'll need to use some amount of dampers to control when the temps go back down.

As your finding out, most coal stoves don't work as well when it warms up out outside. They get lethargic in their response to changes in settings. The good news is that affect can act like an automatic heat reducer when you need the stove to put out less heat - as long as the stove doesn't die, or stop drafting.

The opposite is, you may have to reduce air inlet and use some MPD to slow it down when it gets really cold again.

Lets hope ! :)

Paul
So many stoves - so few chimneys. I must be coal-stone crazy.

JohnB
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Post Sun. Dec. 22, 2013 3:13 pm

I lowered the chimney cap yesterday to it's normal position but didn't see much improvement in my quest to get my draft down closer to "ideal" limits. Picked up a Fields RC Baro & 6" tee today which I'll install tomorrow. If I can make enough space between the liner tee & stove by moving the stove out to edge of the hearth stone I'd like to keep the MPD also. My question is if I have the MPD & the Baro should the Manometer take off still be first, just outside the stove outlet followed by the MPD & then Baro? The reason I ask is that somewhere in that big MPD thread I seem to recall one or two postings stating that the MPD should be right after the outlet with the Manometer takeoff between the MPD & Baro.

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Lightning
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Post Sun. Dec. 22, 2013 3:52 pm

Proper sequence should be stove → manometer → manual pipe damper → barometric damper → chimney

The reading of the stove pressure is the most beneficial to know.

IH Cub
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Post Sun. Dec. 22, 2013 4:09 pm

Lightning,

Do you have issues maintaining your fire when you increase your secondary airflow? Do you watch how your fire is burning to know how much secondary air to give it?

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Lightning
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Post Sun. Dec. 22, 2013 6:16 pm

IH Cub wrote:Do you have issues maintaining your fire when you increase your secondary airflow?
No, it helps me maintain my fire since the added air mass going up the chimney from the secondary improves draft pressure which improves primary combustion air coming in.. Its the Air in = Air out rule at its finest :lol:
IH Cub wrote:Do you watch how your fire is burning to know how much secondary air to give it?
Burning coal in a hand fed is like a two part cycle. Immediately after a fresh load is put on, I have the secondary air wide open while the ash pan door is open. After its burning good, I close the ash pan door and set the primary air control but leave my secondary air wide open while the blues are burning good.. Then once the blues die down, I close the secondary air mostly. I always leave a tiny amount to help burn whatever hydrocarbons are left and to possibly help burn CO later in the burn.

Hope this helps :D

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ridgeracing
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Hand Fed Coal Stove: DS Machine Stove
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Location: Elizabethtown, PA

Post Sun. Dec. 22, 2013 6:45 pm

ridgeracing wrote:
ridgeracing wrote:With temps outside at 60 and house at 74 I turned stove down to 240deg. last night. This morning my draft was just under .02 so I opened mpd 100% to obtain a solid .02 draft. I will monitor it threw out day to insure I have draft at that low of a burn. If for some reason it drops to .01 I will turn stove up. Does any one find this wrong/bad. Any suggestions?
Temps are stil at 58-60 outside, draft actually increased to just under .03 ! Still looking good
I spoke to soon, temps rose to 68 this evening and my draft dropped to as low as .01 for a little. House is 76! Still red coals under bed. Draft is right around .02-.03 Hopefully after tonight I can turn stove up, don't like having numbers below .02! Stove is at #2 on knob and running 225deg.
Last edited by ridgeracing on Sun. Dec. 22, 2013 10:29 pm, edited 1 time in total.

IH Cub
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Post Sun. Dec. 22, 2013 8:32 pm

Lightning,

Thanks for explaining. Would too much secondary air cause the fire to go out though? Or does it always cause the increased draft to pull more air through the coal bed? I'm still trying to learn.

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Lightning
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Post Sun. Dec. 22, 2013 8:44 pm

IH Cub wrote:Lightning,

Thanks for explaining. Would too much secondary air cause the fire to go out though? Or does it always cause the increased draft to pull more air through the coal bed? I'm still trying to learn.
IN my experience so far, no... Extra secondary air has always helped my draft which ultimately results in more primary combustion air. Different situations behave differently, so I can't say absolutely that you would see the same results but, I would expect its likely..

Your very welcome, here to help :D

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ridgeracing
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Location: Elizabethtown, PA

Post Mon. Dec. 23, 2013 6:01 am

I woke up early this morning (5:30) to rain and a temp of 55deg. CO detector going off! Go down to check stove and its at (-.005-0.0) barely any red coals showing and a stove temp of 200deg. I turned stove up from #2 on dial to #3 and within about 2 min. it was reading .025 and red coals back! I guess I am going to have to leave stove at a temp of 250-300deg during warm and rainy days. MPD has been open 100% for past 2 days.
On a side night I have not added or shook coal stove in 48hrs. I want to see how long it goes unatended and at lower temps.

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Lightning
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Post Mon. Dec. 23, 2013 6:25 am

R R, if you have secondary air controls on your stove, some extra secondary would have likely helped maintain draft. I always use it during warm weather burns, It's never let me down. :D

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ridgeracing
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Location: Elizabethtown, PA

Post Mon. Dec. 23, 2013 6:58 am

Fixed, not adjustable. I believe I just cant turn stove down below 250deg. during warm/rainy days (above 50)

KingCoal
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Post Mon. Dec. 23, 2013 7:11 am

yep, in your case I think you are correct and will need to let it run hotter. window stat's are cheap and effective.
" all of learning is the understanding of relationships" George Washington Carver

"the true measure of a man is the way he treats someone who can do him absolutely no good" Samuel Johnson

"if it was any simpler, it wouldn't work " unknown engineer

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ridgeracing
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Posts: 160
Joined: Mon. Mar. 05, 2012 8:59 pm
Hand Fed Coal Stove: DS Machine Stove
Stove/Furnace Make: D.S Machine
Stove/Furnace Model: DS1600WH
Location: Elizabethtown, PA

Post Mon. Dec. 23, 2013 7:19 am

Thanks for all replies. I think the best thing I have learned is the importance of a manometer and having CO detectors threw house! Without manometer I would never no if I was taking care of the situation ;)
Running stove at 260.deg. with a draft of .02 at present time.

KingCoal
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Hand Fed Coal Stove: 3-Locke Warm Morning #120, 1-Locke Warm Morning #524B
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Coal Size/Type: Nut Anth.
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Location: Elkhart county, IN.

Post Mon. Dec. 23, 2013 12:28 pm

where are you measuring your stove temp. ?
" all of learning is the understanding of relationships" George Washington Carver

"the true measure of a man is the way he treats someone who can do him absolutely no good" Samuel Johnson

"if it was any simpler, it wouldn't work " unknown engineer

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