So my enviro from what I can tell has a very small primary air intake”I can see it when looking under the stove” - this air is provided from the bottom hole 3/4”x1.5” and goes internally up the sides and down the window as air wash Then enters the fire.
The stove always needs to be cracked a small bit to get going for 10 minutes with the door 1/8” at most open atleast until 250 stovetop untill I bother locking the door shut or it is a VERY lazy start.
I easily cruise 650+ on the stovetop. After I get some heat built up and good supply of dry wood.
Here lies the problem. After I get the stove hot- dial back the air or not I get allot of secondary action. But after the gasses are burned and it’s time to burn the charcoal down it takes forever- even with the primary air wide open..
During peak combustion I dial the primary air atleast 50% but during lighting fires and trying to burn down charcoal I simply need more air.
If I burn oak all day. By 6pm I have atleast a coal bed 8-10inches thick. And I reload around 350-400 but I want the heat of 550+ so maybe I just need to give the stove more time. But why not open the primary intake up in a fashion I can still completely control and close it. So during those other than peak combustion times I have 2-3x more air at my disposal.. I do realize I have a single control for both air supplies so I would be throwing the ratio between the 2 off but only for 90%+ primary air. I can increase just the 100% setting to 300% and by 75% have it back to the “stock” ratios
Now my lopi freedom has an air intake atleast 5-7 times bigger. And of course during peak combustion I have that dialed back atleast 80% but it also feeds an incredible amount of air for lighting fires or simply burning down the coals that are left in the stove.
Sorry for the lengthy post. Thanks for your time. I have attached the photo the manual has of the “airpath”