Ok so i have a 25-pdvc and have it heating my house.. 2000 sq ft very open floor plan.. i was kinda disappointed in the heat i was getting out of it and how it ran.. dirty glass, lots of ash, etc.. over the weekend it got down to 19 degrees outside and the house got down to 58 degrees inside.. (with the stove running on 9-9) and the three buttons were set to 6-4-1.. after doing hours of research and reading 100's for forums.. I changed my burn mode from D to C and WOW what a difference! now i have it running on heat level 3 and keeping the house at a nice 73 degrees plus the glass stays clean.. now i know the stove has heat sensors and will shut down of it over fires. has anyone out there had that happen? i ran it on 9-9 for a few hours and it ran like a champ.. just seeing if anyone out there has done this and how it went for the long run?