Cap wrote:I don't completely agree with the damper down theory on a Harman hand fired stove.
My experience shows there is only one setting. If too much air, you'll burn more coal in a period of time and loose great deal of btu's up the flue. Burn too slow and the fire will die, good coal will not light along the sides of the fire box. Burn just right, flue temps are almost equal to air out temps.
Every set up has it's own set of characteristics. But I have experience with two Harman's on being a Mark Series hand fired.
I'd size the stove based off of YOUR house size and insulation quality & burn to 100% efficiency.
I have read alot of the post you have posted about the Harman not burning on the sides of the firebox. I paid attention to this while burning in my Harman and you are right, it doesn't burn complete on the sides of the firebox. The reason being is that the ashes usually fall and miss the ash pan on the sides and the ashes build up in the corners.
If you keep the ash pan area clean it will burn on the sides just fine. Atleast mine does anyway.