Set your thermostat as low as is comfortable. Keep the temperature fairly constant, as frequent changes will utilize more energy by causing unnecessary cycling on and off.
Clean or replace furnace filters once a month or as needed. Oil-fired boilers should be professionally cleaned and tuned once a year.
Clean warm-air registers, baseboard heaters, and radiators as needed; make sure they are not blocked by furniture, carpeting, or drapes.
Keep draperies and shades on south-facing windows open during the heating season to allow sunlight to enter your home; close them at night.
Use kitchen, bath, and other ventilating fans wisely. Turn fans off as soon as they are no longer needed. In about 1 hour, these fans can pull out a house-full of warmed or cooled air. They can also pull dangerous furnace combustion gasses into the house in some situations. more..
