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ENERGY SAVINGS CALCULATORHomeowners often replace their windows to save money on heating and cooling. However, not all windows perform the same. So how do you choose? Grandura windows are ENERGY STAR qualified and specifically designed to provide superior energy efficiency. To determine how much money you could save by installing energy efficient Grandura windows, simply use the tool below.
Choose your average monthly energy costs from the drop-down menu below and then click the “Calculate Savings” button. The estimated 30% energy savings over a 10-year period will appear in the far right.
*The calculations used to determine the savings figure are as follows: The yearly energy costs are calculated by multiplying the monthly cost by 12. Then, since energy costs are estimated to increase by 5% each year, 5% of energy costs in year one is added to reach year two, then 5% of year two is added to the year two cost to reach year three and so on until year 10. Then, 30% of that total will appear as your estimated energy savings over 10 years.
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