mfglickman
Minister of Fire
That room should be able to exceed 80 degrees as the burn cycle progresses. If it can not, I would feel draftiness is a big factor here.
This is how I know my house is drafty. Keep in mind my stove is in a 500 SF room that was built in the 1970's - so it has some insulation and the windows are actually quite nice quality for modern windows...but it's over a crawlspace and the wall insulation is probably not optimal and there are air leaks everywhere - around windows, baseboards, electrical outlets...craziness. The "old" part of the house actually feels more solid, but because it has 2 hearths standing corner to corner next to each other, plus a cooking oven, it's like a wind tunnel.