Good morning. Total newbie to heating our home other than with oil, but having a problem at night. We have a separate thermostat set in the 2nd floor hallway (only 5 steps up) from location of stove. Woke up last two mornings in 55 degree house. Stove is not kicking on in middle of night. Is there a recommended heat/blower setting we should have it on? Could our flame level be too low? We did a direct vent right outside. Thermostat works during the day. Any advice would greatly be appreciated.