This morning it was - 16 F and wind chills -30 F to - 40 F. The house is 65 F and the thermostat is set at 69 F. The house boiler is at 165 F and the outside boiler is 180 F. The pellet stove is helping but still is cold in the house. Thankfully it suppose to warm up to zero today with winds dying down. The heat plate I have is 100,000 Btu but wondering if I should have had a larger one for days like today.