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.
The lower the value the less the heat is lost through the entire product.
400 series windows doors time tested classic wood craftsmanship as our most popular series with our longest standing products the 400 series brings you the best overall blend of performance and style to satisfy just about any window or door need.
The sash tilt in for easy cleaning from the inside of your home.
Providing a classic blend of engineering and craftsmanship it s a favorite of builders and homeowners alike.
For over 100 years andersen has built a reputation for environmental stewardship and energy efficient products.
U factor defines the amount of heat loss through the total unit in btu hr ft 2 f metric in w m2 k.
With the right glass options energy efficient windows can help reflect heat in the summer and keep heat inside in the winter helping to keep your home comfortable year round.
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.
400 series double hung windows have two operating sash that move up and down allowing for ventilation on the top bottom or both.
Product performance data is also.
400 series is the best selling wood window and patio door collection andersen offers.
Drafty windows and windows that are not properly insulated can increase your home s energy use each year leading to inflated energy bills and overworked hvac systems.
Made of wood protected by a vinyl exterior it s our best selling double hung window.
Created for trade professionals product guides provide high level overviews of the features and options available with each andersen product series.