There are several things you can do around your home to lower your gas bill. Below are some tips for reducing the amount of energy used by your gas furnace and water heater: 

• Set your thermostat between 65˚ F and 70˚ F during the winter and 58˚ F when away from the house for four or more hours. For homes with elderly people or children, warmer temperatures are recommended.
• Clean or change your furnace filters once a month during heating season.
• Have your furnace or boiler tuned by a qualified technician once a year to help improve your systems operating efficiency. Plus, your furnace is one-third less likely to break down.
• DO NOT restrict airflow through the heating system by closing hot air registers or placing furniture or other objects in front of or over cold air returns.
• Warm air rises, so use registers to direct warm airflow across the floor.
• On sunny days, open draperies and blinds to let in the suns warmth
• Close draperies and blinds at night to insulate against cold air.
• Be sure storm windows are installed during heating season.
•  Weatherize your home with caulking and weather-stripping to seal leaks.
•  Be sure attic and basement have recommended levels of insulation.
•  After you have caulked and sealed bypasses, adding insulation can help you reduce energy use and save on future fuel bills.
• Avoid changing the thermostat setting frequently.
• For greater temperature control, use a programmable or setback thermostat.
• Hot air and return ducts in the attic or crawl space should be covered with at least two inches of insulation and should be as airtight as possible.
• To reduce heat loss up the chimney, install glass doors on fireplace and close dampers when the fireplace is not in use.
• Make sure your wood-burning fireplace is properly vented. Wood-burning fireplaces require a great deal of oxygen. If you do not have an outside air intake vent, your fireplace will draw air from inside your house, including the air you have paid to heat.
• Set water heater temperature to 120˚ F. Extremely hot water can lead to scalding accidents and also higher energy costs.
• Make sure your hot water pipes are insulated where they pass through unheated areas.
• Flushing your water heater tank every year or so is a wise precaution which could extend the life of your tank by preventing the build-up of sediment. (However, if your tank hasn't been flushed for over five years, flushing it now and disrupting the sediment could actually expose a leak.)
  
• Replace old tank water heaters with high efficiency models when replacing. Consider Energy Star.
   
• Repair leaky faucets. A leak that fills a coffee cup in 10 minutes wastes 3,280 gallons of water a year.
• Install water flow restrictors in showerheads and faucets
• Run washing machines and clothes dryers with full loads only.
• Consider washing with cold water.
• Replace old, outdated washer and dryers with high efficiency Energy Star models.