Ash production is also related to what the fuel is sitting on. If you have a highly insulated burn area where the coaling happens you'll have very little ash. If the coals are sitting on high mass and conductive materials like steel or heavy fire brick they will rob the heat from the coals before they can burn completely. So, ash is a function of the fuel, but I think it's more a function of where and how the coals are burning. I honestly have been burning daily since Sept. 15th, have gone through 2/3 of a cord, and haven't yet gotten a pint of ash total. I know that sounds unbelievable, but it really is the truth.
Oh come on peeps! What wood produces the most ash?........ASH!!, of course. How do you think it got its' name? Really though, I think Ash does produce a lot of ash, and have been noticing the Hickory has been leaving a lot too. Prior post may be onto the reason; small loads and cooler burns.
In my experience Ailanthus/Tree Of Hell leaves the most ash (never again will I cut any or bring it home) & its pretty much tied between Honey Locust,White Oak & long dead Mulberry for the least.Shagbark Hickory of course burns a long time with intense heat,but for some odd reason it leaves a bit more ash than those others I've discovered over the last 3 decades...
It ain't the ashes that fill up the stove, it's the unburnt coals buried in the ashes that don't burn!! They can be raked up and stirred around to finish burning, but that ain't gonna happen when you're throwing more in the stove cause it's cooling down... It becomes a snowball effect... I wish I had a grate and an ash pan...
Old blaze king stove. It could be because it is thermostatically controlled and opens up the air wide open at the end of the burn cycle and burns down the coals.
Does the combustion air get to the coals from the top? Or bottom? Does the king have a grate of some sort?
I get very little ash with Hedge, but a lot of clinkers too. I think Lukem is correct in some sense. I personally get them in the dead of the winter, when I'm pushing my NC13 to the fullest.
I get the most ash from walnut but its really fluffy and will settle with the next burn. I get small unburnt coals with all the species of wood I have burned. What are you burning in Matt?
Just an old silent flame wood stove... Draft is in the front, but don't come up from the bottom... I too, get most build up, when pushing it hard during cold weather... The dang coals get buried in ash and dont burn up...