Experimenting With Reduced Loading Fires

Experimenting With Reduced Loading Fires

PostBy: Devil505 On: Fri Oct 03, 2008 6:23 am

Since I have found no way to reduce the firebox area of my Harman TLC without interfering with the shaker mechanism, I am trying a lighter load (about 1/3rd fill) of coal for the early part of Fall when I have to Shut down/Restart due to warm outside temps. This enables me to keep the house warm & yet to clean out easily when I shut it down.

Observations So Far:

1. Much easier to do this than fight with wood fires
2. I find that by banking the fire, I am able to keep one area fairly deep for greater fire longevity.
3. Clean out/Relight is much easier due to the reduced amount of coal/ash in the firbox.
4. I can switch over to 'Winter Mode" at any time by simply filling the firebox with coal to the top of the firebrick
5. Greater care must be taken in shaking down & tending the fire due to the greatly reduced amount of coal actually burning.
(The fire is much more fragile than a full load, & must be "tweaked" more often........This is where being retired , & thus more available to check things, is a major help)

I do recommend this procedure to fairly experienced hand fired coal burners who are comfortable with the workings of their particular stove/chimney configuration & are around the house enough to check the fire regularly, but would not recommend this for new coal burners just starting out, as the reduced fire is fragile.
Devil505
 
Stove/Furnace Make: Harman
Stove/Furnace Model: TLC-2000

Re: Experimenting With Reduced Loading Fires

PostBy: Dallas On: Fri Oct 03, 2008 9:05 am

As I had posted earlier, I dropped 4 firebrick in the firebox to reduce the area. I've since removed 2 and put the remaining 2 on their edge, on each side of the stove.

I seem to have a limited draft capability. In my opinion, there are 2 possible reasons. One, because of the reduced fire size, and the reduced heat generation, the results are, a draft, which is directly proportion, is lower. The other thing, which I'm sure of, is that there is a fair amount of air leakage "around" the fire, due to the haphazard placing of the firebrick on the ends of the stove.

Spring and fall are somewhat problematic.
Dallas
 
Hand Fed Coal Stove: Modified Russo C-35
Other Heating: Oil Hot Air
Stove/Furnace Make: Russo
Stove/Furnace Model: Modified C-35

Experimenting With Reduced Loading Fires

PostBy: Devil505 On: Fri Oct 03, 2008 9:23 am

Dallas wrote:I seem to have a limited draft capability. I


I was going to try to reduce the size of my firebox too but, without inventing a Rube Golberg device, I couldn't think of a practical way to do it while still keeping the shaker mechanism operable. The reduced loading is accomplishing my goal of making clean out & restart of short burns easier. (plus, I like the option of just filling the firebox, without having to reconfigure anything, any time I want.
Devil505
 
Stove/Furnace Make: Harman
Stove/Furnace Model: TLC-2000

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Re: Experimenting With Reduced Loading Fires

PostBy: Lumberjack On: Sat Oct 04, 2008 2:57 pm

That ceramic the space shuttle uses would work nicely.... wonder if nasa sells tiles in thier gift shop....
Lumberjack
 

Re: Experimenting With Reduced Loading Fires

PostBy: BIG BEAM On: Sun Oct 05, 2008 10:03 am

I've been playing with a reduced fire in my hotblast also.About 35# during the day and 25# at night.I can really "meter" this thing way down if I use superior coal but not so well with the mystery coal I have.I shake down the fire lightly so it's about 3" deep and 35# brings it to about 5 or 6" deep in the middle. some of the coal on the side of the fire box doesn't burn but I move that to the middle after I shake.I'm going through about 8 bucks a day in coal so that's 240.00 a month.Cheaper than oil but more than wood.With the wood stove the parlor and LR are warm but the kitchen in the back of the house is chilly.The coal furnace keeps the whole house warm and even.LIFE IS A COMPROMISE !
DON
BIG BEAM
 
Stove/Furnace Make: USS Hot blast
Stove/Furnace Model: 1557M

Re: Experimenting With Reduced Loading Fires

PostBy: Devil505 On: Sun Oct 05, 2008 10:36 am

BIG BEAM wrote:some of the coal on the side of the fire box doesn't burn but I move that to the middle after I shake.



I noticed the same thing Don & found banking a deeper pile in the middle worked fine. (When I shut down there was quite a bit of barely burned coal on the side too.... Pretty easy to reclaim it though)
I just ended my "part fill" experiment & filled the TLC up, since it looks like it's going to remain cool enough at night to warrant a fire.
I thought the low fill procedure worked fine in accomplishing the quick clean out/restart procedures for Fall/Spring burns though & allowed full usage of the shaker grates & quick (no firebox reconfiguration) switch to "Winter Mode" just by filling the stove up..
Devil505
 
Stove/Furnace Make: Harman
Stove/Furnace Model: TLC-2000

Re: Experimenting With Reduced Loading Fires

PostBy: BIG BEAM On: Sun Oct 05, 2008 11:18 am

Yeah I think I'll be runing mine for the rest of the winter too.I may have to use the windowstat but that's OK.Burning coal is so much EZer than wood.

So no more political stuff for you for a while.Last night was the first time I looked at that stuff since I've been on this forum.I was on my local village board for 8 yrs,I didn't run last year,had a heart attack I think that was the good lords way of saying you've done enough public service.The board was changing too.Instead of public servants the board was filling with politicians and I can't work with dishonest people.
DON
BIG BEAM
 
Stove/Furnace Make: USS Hot blast
Stove/Furnace Model: 1557M

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