What size of splits for your Blaze King?

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GG Woody

New Member
Sep 17, 2024
48
Lavington BC
How small do you make your splits for a catalytic stove?
I've been spending some time reading on these forums, seeing many pictures, and it seems like many people split their firewood a bit smaller than I generally do.
I burn almost exclusively Douglas Fir, a bit of Birch, and need to take down a smaller Oak tree in our yard this fall. I will season the oak at least 2 years since it's green and split it smaller.
For years I've cut to 17ish" long (close to bar length my 18" bar, on my most used saw) splits of all sizes, bigger splits are 10" triangles and some rounds I will leave 8" round as they last longer/over night in my non cat stoves.
Are these splits too big for a cat stove? I do leave my wood under a roof and season at least a year, usually more.
I am certainly not concerned, just wondering as I'm stocking up daily for upcoming years, and firewood is on my brain!
 
I'd say it's fine as long as it's dry in the inside..
10" sounds a lot to get dry in one year - even for Doug fir?

Assuming it's dry, it's a matter of convenience. Split more and be able to maybe get a bit more wood in the stove (b/c you won't be able to stack two 10" splits on top of each other in the firebox) versus split less...

Point is dryness is what matters, the rest is user preference imo.

Mine vary between 4-8". I like variety to play stove Tetris.
But it's mostly oak.
 
I'd say it's fine as long as it's dry in the inside..
10" sounds a lot to get dry in one year - even for Doug fir?

Assuming it's dry, it's a matter of convenience. Split more and be able to maybe get a bit more wood in the stove (b/c you won't be able to stack two 10" splits on top of each other in the firebox) versus split less...

Point is dryness is what matters, the rest is user preference imo.

Mine vary between 4-8". I like variety to play stove Tetris.
But it's mostly oak.
How long do you cut?
Do you split all your rounds?
 
I've tried large and small, never noticed that it changes the length of my burn time. These stoves are so efficient I don't think it really matters which way you go. I will say though that when I'm using bigger splits, and they are put to the left or right sides of the stove it can leave behind a larger chunk of unburnt material (usually in shoulder months). I assume this is because my stacks usually burn from inside out and as the stove get cooler toward the end of its run it can have a tendency to not be hot enough to burn that last bit in the corner. It's all good though, just put back into center and incinerate it on the next load.
 
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How long do you cut?
Do you split all your rounds?
17.5" or so

My rounds are almost always more than 1.5 ft diameter. So yes all gets split.

The only thing I do is keep more oddly shaped ones apart to extend a fire until the daily evening reload. I.e. I have some uglies that I use to keep it going for a few hours before a full reload.

And I do save the most perfect rectangular splits for the coldest days as they allow to fill the stove with the least air gaps, having more fuel leading to longer burn times (that are shorter when it's very cold).
 
I split mine to get a variety of sizes. 8" rounds or big splits as a base and then smaller to pack the fire box full.
 
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How long?
16" is what I aim for. I have a Princess that gets run occasionally and I don't want to divide piles. I certainly am not using a tape measure. I'll eyeball 16" and if that's on a limb I'll move the cut. I wind up with 14"-18". This is 90% Doug Fir.
 
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16" is what I aim for. I have a Princess that gets run occasionally and I don't want to divide piles. I certainly am not using a tape measure. I'll eyeball 16" and if that's on a limb I'll move the cut. I wind up with 14"-18". This is 90% Doug Fir.
I measure with the bar on my saw, if I start eyeballing my piles get wonky. If it's on a limb, even better, I'd rather buzz the knot with the saw then have to split around it.
 
Yeah i measure with tape measure and mark off 18" heavy with sidewalk chalk down the logs. It's actually faster than trying to measure each piece with the bar. I like nice neat stable wood stacks cause i stack them high. Higher than recommended because that's how they dry the best.

Head high, mmmmm sure lets go higher, then throw the uglies on top.
 
Me to, 6.5 to 7.5 ft and anal about the length of the splits.

Luckily I can easily give get rid of any shorties (I e. 16-17") ad my neighbor likes them - and store them in a pile. So no stacking issues.
 
Doing house construction, I'm pretty good at eyeballing 16" they're usually within a half an inch. The last cuts on a log generally just make those rounds equal lengths. That's where the 14"-18" comes from. Stacked 8' high in a three sided enclosure and it's solid.
 
I'm single row stacking in the yard uncovered, so got to be a solid stack or else it's a big clean up.

This is before getting topped off with another course or 2 and then the uglies.

[Hearth.com] What size of splits for your Blaze King?
 
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My splits get about 3-4 years of drying once split up, 2 of those years under cover in my woodshed, I go opposite, I make them as large as I can, generally speaking 6"x6" x16" length is my go to size. I can always split a few in half or quarters to get a fire started or stoked up if need be.
 
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