Andersen Windows 400 Series U Factor

Andersen doors and windows that use low e4 and low e glass have a u factor between 0 27 and 0 30.
Andersen windows 400 series u factor. Products that use low e4 and low e glass include certain 200 series fixed units and tilt windows 400 series gliding windows roof windows and skylights and several models of andersen architectural window. U factor 29 shgc 52 i ve tried comparing this nfrc data with marvin s 1 but. I pulled their nfrc data 0 and found this test result for a 400 series casement w out grill with passivesun lowe4. Learn why contractors trust andersen 400 series windows more than any other.
Architect builder remodeler. They include detailed information on the construction of each type of 400 series window and door along with sizing charts and section details. In fact andersen has been part of the energy star program since it started and was the first window manufacturer to be named an energy star national window partner of the year in 1999. If windows are single pane an estimated savings for energy star certified windows is between 101 583 per year.
Anyone know what technology andersen is using in what they call passivesun heatlock or lowe4. If windows are double pane savings estimates range between 27 197 per year. Made of wood protected by a vinyl exterior it s our best selling double hung window. The sash tilt in for easy cleaning from the inside of your home.
This document provides nfrc certified u factor solar heat gain coefficient shgc and visible transmittance vt values for andersen products along with the corresponding energy star version 6 0 2015 climate zones in which the product and glass type are certified. These are available as options to some of their windows even the double pane 400 series. Actual savings will vary based on local climate conditions window type single double pane frame material utility rates and individual home. 400 series double hung windows have two operating sash that move up and down allowing for ventilation on the top bottom or both.