Is There Any Way to Cool This Stove Down?

We have a brand new Hitzer 254 and ZERO experience using any hand fed stove of any type. This has been a learning experience! It took a half dozen tries to even get a fire going and now we're trying to keep it running.
The stove heats a house between 1000-2000 sq. ft. We had it professionally installed in an open building of about 1000 sq. ft. It's so hot we have to open windows and doors to even be comfortable in the room.
The ash drawer vents are completely closed and there is just a sliver of opening at the back draft. My son loaded the stove with 60 lbs of anthracite coal earlier today and most of that is burned down (about 9 hours later).
Am I doing something wrong, or did I just buy too much stove for this building? And if it's too much stove, is there anything I can do to make it work for us anyway?

What size coal? Nut or larger are going to be somewhat more difficult to simmer than, say, pea coal.

Probably a better line of questioning - do you have a barometric or a manual pipe damper installed? If so, was the draft checked and by whom? Can you describe your chimney (Height, inside sizing, materials)? You may be pulling like a freight train. If so, that can contribute to control difficulties.

Hi cricket, welcome to the forum.
It does seem your stove is running too hot.
First open the ash door and shine a flashlight on the shutters from the back and check if you can see any light from the front. Sometimes the the handle or knob has to be tightened to make the shutter a good fit.

Next take a dollar b ill and close it in the ash door to see if the door grips it. Do this all around the door to check for leaks.

Air is getting in somewhere to make the stove run so hot. It would be nice to get a magnetic thermometer to place on the stove to get actual figures.

Well I would guess the stove is new so gaskets should be ok but still check them. You said the flapper in the back was open a sliver so turn the dial down that it is attached to, and check the slide on ash door as mentioned and adjust so the slide is slightly hard to open or close. You set the dial on the rear of stove to obtain the heat level you want, up for more heat and down for less, once you find that happy spot all will be well.

cricket

Tell us your location if you would please. There might be a forum member who lives near you who could come by and help you out a bit if you wanted.

You have purchased a great stove and I am sure you will have it mastered very soon.

Thank you for the replies and the welcome.

We are burning nut sized coal. The pipe we have is 6 inches and is about 5 feet tall to the ceiling and 3.5 feet about the roof. I don't know what kind of damper was put in or if the draft was checked because we weren't home during the end of the install.

The ash door is tight. I will buy a thermometer so that I'm better prepared for troubleshooting.

I'm 40 minutes north of Pittsburgh. Onedollar, thank you for the encouragement regarding the stove. I was starting to think we should have chosen another.

To be honest, I think the problem is user error. I read a lot on this site last night and then stoked the fire according to the advice here and adjusted the draft and the ash vent and the stove burned perfectly. When I livened up the coals this morning, I had beautiful flames. (It's a minor miracle that the fire made it through two stokings!) I have no idea what we've been doing wrong, but at the moment things seem to be just about perfect.

Thank you all for the advice. I'm so glad I found this site!