The sample, and

To reduce heat loss through the window, you need to increase the number of glasses in the design of the double-glazed window to three to four. If the loss of heat from the house is associated with the movement of air, then it is necessary to check how hermetically glazing. Make the glass hermetically adjacent to the sample, and then the losses will be minimal. This can be done using a sealant (this task can be entrusted to workers if you carry out apartments without intermediaries).