# How Big Do You Make a Coal Bin?

### Re: How Big Do You Make a Coal Bin?

Ggans, try to find grain bags if you want to bag your own coal. Breweries and feed stores have lots of them. They're a heavy woven plastic, usually 70-80lb when full of grain. I've filled them full of coal and not had one break.
Scottaw

Stove/Furnace Make: Hitzer
Stove/Furnace Model: 50-93

### Re: How Big Do You Make a Coal Bin?

48" x 48" x 48"=110592 cubic inches divide that by 12 cubed(1728)=64 cubic feet
coal is 50 pounds/cubic feet , so (50 pounds/cubic feet) x (64 cubic feet)= 3200 pounds
minus the volume of 11 2x4's=150 pounds, so 3200-150=3050 pounds if filled completely.
I put the 2x4's on the inside of the bin and the bin looses 150 pounds as compared to
putting the sheathing on the inside, the bin looses 700 pounds. A difference of 500 pounds..
This bin cost \$65.00 , home depot , 3 sheets 1/2" usb, I did put a top and door on it, (11) 2x4's, 3" screws and 2" screws.
The coal was free for the loading, 2 loads = 2 tons, so I built 2 of these, one for home and
one for shop, no more carrying one building to another,
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alpineboard

Stoker Coal Boiler: Van Wert 600
Hand Fed Coal Boiler: Tarm 202
Hand Fed Coal Stove: Harman HXL, Crane 88, Crane 404
Other Heating: Solar

### Re: How Big Do You Make a Coal Bin?

The easy way to do math for those like me who never got into mathimagican school .. 4'x4'x4' = 64 divide by 40 = 1.6 ton or 3200 #
windyhill4.2

Stoker Coal Boiler: 1960 EFM520 installed in truck box
Hand Fed Coal Stove: Crane 404 with variable blower
Coal Size/Type: 404-nut, 520 rice ,anthracite for both

### Re: How Big Do You Make a Coal Bin?

For pea I've simplified it down to 1.3 cubic yards = 1 ton
lsayre

Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW)

### Re: How Big Do You Make a Coal Bin?

I am thinking about switching from bagged rice coal to bulk to save money. Rather than a bin, is there a reason not to simply pile the coal on the ground outside, and cover with a tarp??
paulm

### Re: How Big Do You Make a Coal Bin?

The short answer is: yes. However it would be more intelligent to get it up off the ground and water or ice in the winter. You can do it anyway you want, but a little time spent constructing a frame and sides with a floor would sure help with storage, cleaning up, etc. Bare ground is a PITA to clean up. Obviously 4' dimensions for plywood, Advantec and 1/2" is OK, but 5/8" is better. The question is: How much do you use or need on hand? Mid winter delivery is not much fun, if even available. The simple box 4 by 8 by 4'tall (with a center wall for support) would hold 4*8*4 or 128 cubic feet, +/- divided by 43 cu.ft/ton or 2.97 tons in a perfect world. Safely, 2.5 tons. If you budget would allow it, a hinged roof that was waterproof would eliminate any wet coal issues, leaves, pine needles, etc. Do not forget that for this bin to last, you should use screws and or bolts along with nails to secure the floor, sides, ends top.......
whistlenut

Stoker Coal Boiler: AA130's,260's, AHS130&260's,EFM900,GJ & V-Wert
Hand Fed Coal Boiler: Franks,Itasca 415,Jensen, NYer 130,Van Wert
Hot Air Coal Stoker Furnace: Alaska, EFM, Keystoker, Yellow Flame
Hot Air Coal Stoker Stove: Alaska, Keystoker-2,Leisure Line
Hand Fed Coal Stove: Alaska, Gibraltar, Keystone,Vc Vigilant 2
Hand Fed Coal Furnace: Ford, Jensen, NYer, Van Wert,
Baseburners & Antiques: Glenwoods
Coal Size/Type: Barley, Buck, Rice ,Nut, Stove
Other Heating: Oil HWBB

### Re: How Big Do You Make a Coal Bin?

When wet coal freezes in the winter, its like digging thru concrete to break it up.. You'll wanna keep it as dry as possible.
Lightning

Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size

### Re: How Big Do You Make a Coal Bin?

paulm wrote:I am thinking about switching from bagged rice coal to bulk to save money. Rather than a bin, is there a reason not to simply pile the coal on the ground outside, and cover with a tarp??

You can do that but I would suggest putting a tarp under as well as over it, especially if it's for a stoker. You don't even really need it over the coal except to keep the rain and snow off it so it doesn't freeze together.
Richard S.

Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite

### Re: How Big Do You Make a Coal Bin?

thanks for you valuable replies and suggestions. I will plan to build a solid bin that will last for years. I looked for ready made coal bunkers to buy rather than build - but, interestingly, it looks as though they are commonly for sale in the UK, but not in the USA . For this year, I may go with bagged until I have time to build a good setup for bulk.
paulm

### Re: How Big Do You Make a Coal Bin?

Just got done it will hold 25 ton
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Phil May

Stoker Coal Boiler: EFM 700
Coal Size/Type: Buckwheat
Stove/Furnace Make: EFM
Stove/Furnace Model: 700

### Re: How Big Do You Make a Coal Bin?

I started my Coal bin this weekend. I am going to start small this year since it is my first year. I went with 3x8x3 in the basement. This should get me a ton and a half on the first delivery, I will follow up with 1 ton orders after that. The closest supplier to me is about 7 miles away and they are in my area 3 days a week. I guess their primary customer are pizza places so they don't have much of a delivery fee. If we like the results I made the bin available to be doubled in size, a little lumber and my framing nailer can get it done in about 2 hours.
tjfslaughter

Hand Fed Coal Stove: Vermont Castings Vigilant
Coal Size/Type: Pea
Other Heating: 1962 Carrier FHA NG 1st floor, Goodman 96% FHA second floor

### Re: How Big Do You Make a Coal Bin?

Filled the new bin the other day 23.9 tons of calvin lennigs finest. The bin was full to the top. Calvin told me he is selling coal faster than he can make it. Better call before you go. By my calculations the coal weighed 46.68lbs/Cubic ft. It was \$150/ton picked up.
Phil May

Stoker Coal Boiler: EFM 700
Coal Size/Type: Buckwheat
Stove/Furnace Make: EFM
Stove/Furnace Model: 700

### Re: How Big Do You Make a Coal Bin?

Phil May wrote:Filled the new bin the other day 23.9 tons of calvin lennigs finest. The bin was full to the top. Calvin told me he is selling coal faster than he can make it. Better call before you go. By my calculations the coal weighed 46.68lbs/Cubic ft. It was \$150/ton picked up.

WOW! NICE!

Phil, How do you fill a 24 ton vertical coal bin???

-Don
StokerDon

Stoker Coal Boiler: BairMatic BMC-500 with Van Wert VA400 Stoker, Gentleman Janitor GJ-671/EFM S-15 stoker, Van Wert VA-600
Hand Fed Coal Furnace: Harman SF3500
Coal Size/Type: Rice and Chestnut
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

### Re: How Big Do You Make a Coal Bin?

With a 8" grain auger. By the way don't try to feed it to fast. I wont tell you how I know this. I was a little disappointed the bin is 1024cuft I thought the coal would be over 50lb/cuft. 23.9 tons filled it completely full
Phil May

Stoker Coal Boiler: EFM 700
Coal Size/Type: Buckwheat
Stove/Furnace Make: EFM
Stove/Furnace Model: 700

### Re: How Big Do You Make a Coal Bin?

What does a 5 gallon plastic pail full of your coal weigh?
lsayre

Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW)