One other note,
If you load the stove completely with Oak, its going to have a crap load of coals, no two ways around it.
I did the same thing my first year. You can pull the coals all to across the front, and mine here will burn another couple hours at least at around 400 or so degrees. At 5 degrees out, no it wont keep the house up at 72 degrees by coals alone.
You can also try scooping the coals in a row front to back in the middle of the stove, and put a split on each side and one over the top to tunnel burn the coals.
If you load some oak and some other species, I been using cherry, walnut etc. You won't have as many oak coals and they will burn down more even & faster with less oak in there.
I honestly do not notice much of a loss of burn time or temp for not loading with all oak. But have eliminated much of the coaling issue.
The stove is an appliance, if the operator doesn't learn that stove, and assumes it burns like the last stove you owned. Unless that last stove is the same stove, your in for some grief.
The stove will only burn as well as it is set up , exhausted, drafts & how well the wood is burned. Take the time, learn how the new stove works, take the patience to do so. Or go buy an old smoke dragon and load the sheet out of it, burn it till it clanks, cracks & falls apart. Or shoots jet flames out your stack. Oh yeah, and figure 2x the wood for each year give or take some.
Is it me or is this the year for the most complaints about all brands of stoves not burning right? "Its the stove, it is not burning right, not as I expect, and I am disappointed".
I sense more folks this year, just threw a stove in, threw wood in it, and wanted instant gratification. "This is not how I remember granpa's stove burning".
Not says all folks are this way, just seems like more this year than the other years I been on here.
Take the time, learn the stove, find the sweet spot, or just go get a pellet stove with a dial on it, fill the hopper and plug it in. But they need some attention too.