Hi everyone. I’m new with the pellet stove. I got a new harman p35i insert about 4 weeks ago. I have a 1800 square feet home. 3 rooms down stairs and 3 upstairs. I’m having a hard time keeping just the room where the stove is in warm. I have my stove set at feed rate 3.5 room temp at 77 and fan on high. My oil thermostat is about 15 feet away. I could never get it to read past 68 with my pellet stove. I’m going through about a bag and half a day of premium hard pellets. Am I doing something wrong?