I have an Englander 13 series that heats up to 1800 sq ft. I bought this for my cabin which is 480 sq ft on the first floor and the same for the loft area. Plenty of stove one would think. My install is as follows: small vertical pipe from the stove and then out through the wall with my stainless chimney running along the side of the cabin which is a 14 ft run. The cap is slightly ( a few inches) above the peak. The cabin is in a very wooded area with mostly tall pines. Anyway, I got there this morning and the inside of the cabin was about 15 degrees. By the time I left at 4 PM, I was only able to get it to 40 degrees. The loft is fully insulated, the side walls in the loft and on the first floor are insulated. However, the floor is not. The cabin underneath is wide open with basically just the plywood floor and knotty pine on the inside. You would think the upstairs loft would have all the heat but it remains freezing up there. I don't know if it is a draft issue or the fact that my floor isn't insulated. I was told this stove would blow me out of the cabin. Do I need to add another chimney pipe to get to the two ft above the peak? Do I need to insulate the floor? Outside air kit maybe?