I AM CURRENTLY BUILDING A NEW HOUSE, RANCH STYLE JUST OVER 1400 SQ. FT. I AM INSTALLING A BIS ULTRA IN THE MAIN ROOM AND I AM CURIOUS ABOUT ITS PERFORMANCE. HOW LONG OF BURN TIME CAN I EXPECT TO GET USING GOOD WOOD? HOW CLEAN DOES IT BURN? ALSO HOW DOES IT COMPARE TO ANY OTHER STOVES YOU HAVE USED OR OWNED? MY PREVIOUS HOME HAD A BUCK MODEL 20 INSERT AND I WAS VERY PLEASED WITH THE HEAT OUTPUT. THE STOVE COMPANY SAYS I WILL NOT BE DISSAPOINTED WITH THE BIS HOPE THEY ARE RIGHT!