I have no experience with the
stove you quoted, but it is almost IDENTICAL to my Big-E in size and features. I love my Big-E and we have been heating our house mostly with it (over 1600 sq ft with 12' ceilings and lots of doors !) we use ceiling fans to move the heat, but my stove or one like it in a 900 sq ft space
"forget about it" You will be fine. You probably will run it on 3 until the materials are upto temp than maybe 2 at most it should also have a thermostat hookup and should have a
hi/lo--on/off--manual........
hi/lo will turn the stove to setting 1 automatically when the t-stat is satisfied than back to your setting when it calls for heat (this saves your igniter and the electricity of heating it),
on/off will shut it down when t-stat is satisfied and on and back to your setting when it calls for heat, and manual is just that......
We fill our hopper and than its good for 48hrs or so before its hungry for more pellets. On 2 you may go 3 days on a full hopper. Another nice feature is the manual "high fan" button which means you dont have to have the stove on high for the fan to run on high, this is nice to be able to move the heat further when the stove is on lower settings. And I love the hopper size "size DOES matter !"