When replacing or adding windows, choose ENERGY STAR® qualified windows with a U-Factor of 0.35 or less. The lower the U factor the better, since it measures heat transfer throughout the whole window unit. Low Emissive (Low-E) windows help reduce your energy bill up to 15%, by lowering the way that the windows transfer heat, and they reduce fading by up to 75%.

The metallic coating does not reduce visibility, because it reflects the long-wave light rays that carry heat and UV but not light. The average life of a Low-E window is 30 years, and the cost to replace a window is $750 - $950 for material and labor. Low-E windows may only cost about 5% more than equivalents without Low-E. In a typical home, Low-E saves between $125 - $450 a year when replacing single-pane and saves $25 -$110 a year over double-paned, clear glass replacement windows.

The ROI Calculation is based on average energy bills of $2,000 a year with heating/cooling using 40% of the energy. The calculation factors in replacing 20 single pane windows at an added cost of $35 per window and $15 of energy savings per window per year. Plus get Tax Credits: 10% of cost not to exceed $200 total.

Consider Casement Windows that give you the ability to adjust the amount of fresh air, breeze, and maximize views by opening them up all the way.

TAKE ACTION Calculate Savings for Your House: Click Here then select the 'Energy Efficient' Tab See J.D. Powers Ranking of Top Ten Window Manufacturers: Click Here Get PELLA - Picked #1 and Energy Star Partner of the Year 2007: Click Here Find a Showroom and Contractors Near You: Click Here Get a Free In-Home Pella Consultation: Why not learn about the top options before you decide what type of window to buy? Click Here See the Tax Credits: Click Here Find a Window Installation Specialist near you (Pre-Screened and/or Member Referred) Click Here