Chubby cruising speed

Chubby cruising speed

PostBy: lobsterman On: Thu Nov 24, 2016 10:55 pm

I love it that the Chubby with its air open a sliver, MPD closed, and a full load of coal always settles into its sweet spot at around 350 degrees. And stays there. Got to love the Chubby.
lobsterman
 
Hand Fed Coal Stove: Chubby, 1980 Fully restored by Larry Trainer
Hand Fed Coal Furnace: Chubby Jr, early model with removable grates

Re: Chubby cruising speed

PostBy: Lightning On: Fri Nov 25, 2016 12:37 am

That is why coal is such a beautiful fuel. With the same draft and primary/secondary air settings you get the same predictable heat output. Every time. Love it.
Lightning
 
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size

Re: Chubby cruising speed

PostBy: lobsterman On: Fri Nov 25, 2016 9:33 am

Agreed, what I just described is a characteristic of coal, not the stove. But the simplicity of the Chubby still amazes me. Having a great draft in my windy location, the steady state of my MPD is always fully closed. The secondary air is closed. This means it is a 1-lever stove for heat adjustment. The primary air consists of a total of 4 square inches. Close it up and you can hold the fire for a very long time, 16-24 hours. Open it up and the stove will hit 800-900 degrees; won't burn the house down but way too hot for steady operation. About 1/8 open is my "sweet spot" for steady running, increased perhaps to 1/4 open for extremely cold days.
Last edited by lobsterman on Fri Nov 25, 2016 10:49 am, edited 1 time in total.
lobsterman
 
Hand Fed Coal Stove: Chubby, 1980 Fully restored by Larry Trainer
Hand Fed Coal Furnace: Chubby Jr, early model with removable grates

Re: Chubby cruising speed

PostBy: Lightning On: Fri Nov 25, 2016 9:51 am

At some point in the future when I have a Stoker unit in the basement, I'd like to have a small stove in the living room. A chubby is a fair contender for that position. :)
Lightning
 
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size