What Makes it Energy Efficient?

NFRC, AAMA and ENERGY STAR certify or qualify products based upon their structural and energy performance characteristics. These standards can be likened to the miles per gallon stickers you find on new cars and can help you compare and contrast different products. These labels enable you to make an educated decision about the products you purchase and their suitability to your needs. When shopping for windows, be sure it has been tested and certified.

The main standards they evaluate are:

U-Factor measures how well a product prevents heat from escaping a home or building. The lower the U-Factor, the better a product is at keeping heat in.

Solar Heat Gain Coefficient (SHGC) measures how well a product blocks heat from the sun. The lower the SHGC, the better a product is at blocking unwanted heat gain.

Visible Transmittance (VT) measures how much light comes through a product. The higher the VT, the more light that comes through the product. High numbers here can indicate a room with uncomfortable glare. Four Seasons balances the Solar Heat Gain and Visible Transmittance to provide the best shading while maintaining high visible light transmission without glare.

Air Leakage (AL) measures how much outside air comes into a home or building through a product. The lower the AL, the better a product is at keeping air out. This is an optional rating and is not included on every window label.

Energy Efficiency Pays Off in Comfort and Enjoyment

Making an investment in energy efficient windows now will pay off for years to come in lower energy bills, less fading damage to furniture and carpet, and, above all, the comfortable enjoyment of your home.

Windows and Doors Designed and Built Exclusively for Your Climate

Energy-Saving Windows and Doors by Four Seasons Home Products are manufactured to your exacting specifications based upon your needs and desires. This starts with the window style you want (casement, double-hung, sliding, etc.), includes the options you desire (colors, grilles, etc.) in the exact sizes you need and even extends to the specific glass recipe used to create a high performance window that will save energy (and you money) no matter what climate you live in.

From Quebec to Arizona...

Windows that Save Energy and Keep You Comfortable Year-Round

Four Seasons recognizes the climatic differences that exist in locations throughout North America and has designed specific glass coatings to combat those conditions and ensure you the most energy-efficient windows no matter where you live.

GLASS RECIPES

CONSERVAGLASS SELECT with Stay-Clean Technology
Unique Glass Formulas for Your Needs and Your Environment

Cold Protector Extreme
Designed for the most frigid environments of the U.S. and Canada, this triple-glazed, Krypton-filled glass has the highest R-Values of any CONSERVAGLASS SELECT product to keep you warmer inside when it’s very cold outside. This is the best Four Seasons’ glass to use when you’re most concerned about heat loss through your windows.

Cold Protector
Designed for moderately cold environments of the Northern areas of the Continental U.S., this insulated glass is filled with Argon gas for excellent insulating properties. CONSERVAGLASS SELECT Cold Protector is a very energy-efficient glazing designed for climates that get very cold in the winter but are also concerned about air conditioning costs in the summer.

Heat Protector
Designed for moderately warm environments of the Central (north to south) areas of the Continental U.S., Heat Protector has a unique blend of permanently bonded exotic coatings on the inside of the glass to dramatically reduce the Heat Gain through your windows. Heat Protector blocks the heat without greatly reducing your visibility through the glass, reducing the energy needed to cool your home on the hottest summer days.

Heat Protector Extreme
Designed for those environments that experience the most sizzling summer heat, Heat Protector Extreme is a triple-glazed and Krypton-filled glass that combines high R-Values with specialized glass coatings to reduce the high cooling loads experienced in the southernmost parts of North America. CONSERVAGLASS SELECT Heat Protector Extreme has a low Solar Heat Gain Coefficient combined with the highest R-Value to keep you cooler on the most sweltering days of the year.