How about improving indoor comfort and cutting energy bills substantially by turning window sashes twice a year?

Eco Window Systems – EWS takes pleasure in presenting the unique advantages of our patented one grip multi-task locking.

Background:

The function of the solar protection absorbtion glass pane during the warm season on the outside of the window is widely  known. Unfortunately, it works the same way in the cold season. I.e. it blocks much of the solar energy from entering the room resulting in an ice cold inner glass pane.

What happens if we turn the sash 180 degrees in the cold season thereby positioning the solar protection glass pane on the inside?

The inner solar protection glass pane will work as a radiator. The sun will heat the glass. In addition solar radiation will pass thru. Moreover, the glazing may be optimized for climate zones.

Those are established facts. However, no viable and affordable technology has been available until now. The EWS-solution allowing the sash to be completely turned and locked in the new position was granted patent in December 2016.

 

EWS turns windows into clean tech products!

EWS windows cut emissions of CO2 significantly.

EWS – The most cost-efficient energy-saving window system!

In US terms savings are 440 000 Btu by 10 square feet of glass area annually or more when adding decreased usage of air-conditioning during warm seasons to curtailed need for heating in the cold seasons.

This equals a U-value reduction in US units by 0.12 compared with the best energy saving windows on the market.

The European dynamic u-value is curtailed by 0.6 compared to the best energy-saving windows.

When replacing older windows, the energy-savings are substantially higher.

We will substantiate with scientific measurements on request.

 

 

 

Summertime

Wintertime

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