They can save up to 40% of heat that is lost through the windows.

You can increase your comfort and decrease your heating bill by using them.

Manufacturers give energy ratings and they range from A++ up to C.

Also, the U value is used in this method to evaluate how efficient a given window is.

The space between the two panes of glass acts as a thermal barrier, making your home warmer in winter and cooler in summer.

This prevents heat from escaping and keeps your home at a steady temperature.

It also reduces noise.

The downside is that triple-glazed windows tend to be more expensive than those with double glazing.

Double-glazed windows make use of gas or air to fill in between two panes.

Most common choices are low-conductivity gases like argon.

Desiccant can also be used for double-glazed windows.

This gas-filled window can be used to prevent moisture entering the space.

The added layer of insulation in double-glazed windows makes them highly energy efficient.

The windows prevent heat from getting inside the house and also keep outside noise out.

The result is lower heating or cooling costs.

The insulation allows for greater comfort inside the home even in warmer climates.

If you have many windows, double-glazed windows may be the most efficient choice.

In cold and summer, they can help reduce energy consumption by up 24 percent and up 18 percent respectively.

They're a great investment, especially if you choose to replace all of them.

You will enjoy a much warmer home throughout the year thanks to double-glazed windows.

Double-glazed windows are very energy-efficient.

The windows can help reduce up to 40% heat lost through them.

You can increase your comfort and decrease your heating bill by using them.

Window manufacturers assign energy ratings that range from A++ through C.

These ratings take into consideration the whole window unit.

Also, the U value is used in this method to evaluate how efficient a given window is.

This acts as a thermal barrier and keeps your home warm in the winter and cool in the summer.

This can reduce heat loss and help maintain an even temperature.

It reduces sound.

It is slightly more expensive to get triple-glazed windows than double-glazed.

Double-glazed Windows use air or gas as filler between the panes of glass.

Low conductivity gases such as argon are most popular.

Desiccant can also be used for double-glazed windows.

These gas-filled windows can also prevent moisture from entering the room.