OK, first let me say I like my new DS 1300. It's easy to care for and burns well. Secondary air inlet seems well-designed and I have had no explosions yet.
But now I have to crab just a little about quality control. As delivered, the ash pit door was very hard to close and did not seal right. The reason was, someone was very sloppy installing the gasket so it was thick at the hinge end but stretched thin at the handle end. I had to remove it and wire-brush the "generous" amount of rock-hard cement and install new gasket.
Second problem was air leakage around the ash pit door frame, enough so the thermostat would not properly limit stove temperature. The door frame bolts onto the stove body, and at places you could easily slip a piece of newspaper between body and frame. At one spot where the door frame meets the bottom plate, a light
puff of compressed air from the outside would blow the ashes around inside. Fixed it by running a bead of high-temperature silicone all the way around the frame.
Third problem was the air inlet door bound up and would not close. The little hinge ears at the top of the door were rubbing on the inlet frame. I had to loosen the hinge bolt a little and pry the ear with a screwdriver to bend it and make more clearance.
Not major problems, but not what I was led to expect about Amish craftsmanship. Things must have gone all to hell in Amish-land when they let a telephone into the factory.