Resources and Documentation
Solar Heat Gain Coefficient (SHGC)
One of the primary measures of the energy efficiency of a window is it's Solar Heat Gain Coefficient (SHGC). The SHGC measures the proportion of solar energy that is absorbed and transmitted by a window into the interior space. The greater the absorption and transmission of solar energy, the more heat generated within the house. Read more on SHGC...
U-Factor (Heat Conduction)
Another important measure of energy efficiency is the U-Factor which dictates the efficiency of heat conduction across the window. U-Factor differs from SHGC in that the former measures heat loss from within a space where as the latter measures heat gain from the exterior. Read more on U-Factor...
Tax Information for Energy Efficient Windows
The American Recovery and Reinvestment Act of 2009 has several provisions for providing tax credits for individuals that purchase energy-efficient products for their homes during the years of 2009 and 2010. In particular, energy-efficient windows with an SHGC and U-Factor less than 0.3 are eligible for a 30% reimbursement up-to $1,500 (not including installation costs).
Read more on tax credits for energy efficiency. Individuals can claim the tax credit using Tax Form 5695.
Enercon extends warranties on all products we manufacture. In the event that a window is purchased from one of our suppliers, we have provided warranty information for your convenience.