Cost to replace windows with double pane A double-glazed window, the same of which is low-emission, is more wisely than a triple-glazed window according to the basic parameter "thermal transmittance." The higher the value, the better the construction protects from the cold.
Thermal insulation characteristics of the window units with the conventional spyglass stuffing are set in the table below. You can study more details upon the thermal insulation properties of the insulating lorgnon units at the following tie-up: thermal insulation of insulating magnifying glass units.