The biggest factor in having a more energy efficient home is to correct airflow problems. You really don’t need a home energy audit by a professional heating efficiency crew. All it takes is a little DIY effort to make sure air is flowing where you want it to flow and isn't flowing where you don’t want it to flow. A few DIY energy efficient projects can save you a lot of money and have an energy efficient home. Here are a few DIY home energy conservation projects and ideas to help you out.

Small cracks in your home that allows air to enter can be as bad for your heating and cooling as leaving a window open. Homes that have undergone small changes to accommodate updates such as wiring can lose a great deal of energy where the hole were not properly sealed. Caulk all small holes where wires go through walls or floors. Check brick facades and the outside of your home for small cracks and signs of wear that may be counteracting insulation.
If your home has a chimney make sure it is sealed with high-temperature cement and metal flashing at the roof line. Keep the fire place flue closed when it is not in use to prevent air flowing indoors from the outside or outside from the inside. Tight fitting glass fireplace doors can also help keep cold air where it belongs.
Plumbing vent stacks also need to be sealed where they penetrate to the outside. In general look for any holes between the attic and the heated space below and seal them as much as possible. Use weather stripping on the attic entry door as well as insulation on the attic-side of the door.
Having enough insulation is key to keeping your home efficient. Eighteen (18) inches of energy efficient insulation like fiberglass batting or cellulose insulation in the attic will greatly improve your heating and cooling systems. However, the attic does need air flow, so make sure air vents are clear and unobstructed.
Check each window to insure it closes tightly and locks. All leaky windows should be weather stripped just like doors. Electrical outlets and switches provide easy access for cold air to enter any room. This can be prevented by installing foam gaskets behind them. Old windows and doors need to be checked every year for air infiltration. If they don’t fit properly seal them with caulking or weather stripping. If they are warped heavily, replace them with a new energy efficient model. Expanding foam is also an option to use around doors and windows.
On the outside, seal laundry vents, water faucets, electrical outlets, and other hookups and plumbing that penetrates the house walls. Install storm windows and doors where you don't already have them to create a buffer of air that retains heat and coolness. When it comes time to change siding, use foam insulated siding.
Basements and crawl spaces should be sealed too. If you have a crawl space, place a layer of plastic over the ground in the crawl space to help insulate the area below the floor. Regular basements with concrete walls can be a major problem for efficiency. Consider attaching insulation to the concrete walls or building an insulated wall.
Choose appliances that have Energy Star ratings and replace any incandescent lights bulbs with compact fluorescent light bulbs.

These energy efficient home suggestions are inexpensive home improvements that can be performed by most DIY homeowners and they can save you a lot of money in the long run. Economically it is well worth making these improvements to increase your home's efficiency.

Heating Cost Savings

Heating System Tune Up

Radiators to Heat Your Home

Space Heaters

Under Floor Heat System