Depending on the area where your house or apartment is located, we recommend choosing the type of glass according to how much light gets inside.
If you are in an area exposed to the sun, then we recommend that you choose 4-season glass, as it will protect from the strong rays of the sun and keep cool air in the house during the summer.
If you live in a shady area, we recommend choosing LOW-E glass, for more light in the house.