How 70s Airplane Technology Saves You Money in Heating Bills

A thin, invisible film that keeps pilots safe from infrared rays while in the cockpit can save Americans billions of dollars in heating and cooling bills. Money is "flying out the window" in more ways than one for homeowners with standard glass panes. Installing low-emissivity or "Low-E" windows can save home owners a significant amount of money on their heating and cooling bills.

The oil crisis of the mid-70s spurred research into ways to conserve energy. During the period of investigation, it was realized that a large amount of energy was lost through the windows of buildings, so explorations were made into the problem of too-open window glass. It was discovered that the technology was, in fact, already created and being used.

Up to the time of research into energy-efficiency, only airplane pilots had the privilege of peering through glass treated in this fashion and that only because flight brought one closer in contact with higher amounts of infra-red radiation. The protection for pilots exposed to higher levels of radiation than one could normally expect had an unexpected side-effect: it made the window glass extremely efficient at filtering energy, creating window panes that could effectively retain heat in a house in winter and keep it cooler in the summer.

The challenge was not in the creation of the treated glass or in the patents or in the materials. It was in the eternal resistance to things that were new. The researchers were hard-put to prove that this kind of glass worked better than previous incarnations. Gradually, with some clever demonstration modules, manufacturers were won over to the idea of an invisible coating providing all these benefits.

As the windows became more popular, the price went down until they are affordable by today's home owner, not just large corporations. ENERGY STAR now lists these treated windows along with its other approved materials and appliances that can help conserve energy and lower the home owner's overall expenditures. Now, researchers are working on producing windows of layered, treated glass, which will be even more efficient.

A seemingly random discovery in the 1970s has paved the way for more energy efficient homes today. Research into better window construction is going to give the home owner more control over their home's emissions than ever before. Home owners will be able to save money and conserve their overall energy expenditure, which will in turn make it more available for the future.