Cost to replace windows with double pane A double-glazed window, one of which is low-emission, is more wisely than a triple-glazed window according to the primary parameter "thermal transmittance." The higher the value, the gambler the construction protects from the cold.
Thermal insulation characteristics of the window units with the typical spyglass contents are acknowledged in the tableland below. You can read more details regarding the thermal insulation properties of the insulating lorgnon units at the following link: thermal insulation of insulating magnifying glass units.