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The people fortunate enough to live in a consistently warm and sunny place like Southern California don't need to worry about their heating costs in the winter. But the rest of us are looking for ways to save energy, thereby saving money. Today, being environmentally conscious is trendy anyway, and you'll save money to boot. When thinking about alternative home heating, consider the option of passive solar heating.

Even on those truly frigid days in the dead of winter, the sun still emits a noticeable amount of heat. The only factor that precludes the accumulated snow from melting is the long night and short daylight period. Wouldn't it be nice if you could use the sun's heat when it's available without needing to significantly modify your house?

There is an answer to some of the heating costs. It's called the Trombe wall. It is made of material that is used for thermal mass, usually stone or concrete. It is insulated with glass and an airspace to help keep the heat in at night. There is also a shade that lets direct low winter sun enter, but keeps the glass from being heated too much from the high summer sun to help keep your cooling costs down.

True, short of major renovations, such an addition isn't going to be easy to retrofit to your house, and custom designed homes are expensive. But retrofitting a house for other energy efficient heating techniques, like radiant heating, is also expensive and, unlike the other alternatives, passive solar heating, once implemented, costs nothing to continue using.

Not everything from the past involves excessive waste of resources. Trombe walls invented in the 19th century are an excellent green choice for building or buying your new home. These type of walls, made popular in home designs in the 1960's, are to be considered when you are searching for an energy efficient home.

Now that the awareness of green issues is commonplace, people are becoming aware of the costs involved in heating our homes, both financial and environmental. Ideas from our ancestors, both ancient and not so ancient, solutions such as passive solar heating, are being looked at as viable because not only do they have a benefit environmentally, but they save us money as well.