Windows are the worst energy leakers you can ever have in any house. Natural light is great but it comes at great cost. They let too much heat inside in the summer and too much cold inside in the winter. Doing anything is better than nothing. Just stretching plastic over them or hanging a blanket over them is better than doing nothing.
The best way to deal with it is to get the best windows that you can and use a thermal barrier or shutter. There are attractive roll up thermal shades that are made of comforter or winter jacket like material (thinsulate, etc.). They are usually or shall I say best mounted on tracks to seal the window on cold nights or hot days. Some are manually operated (cranked up and down) and some are electrically operated. The advatage to these are the roll up storage. Cons are expensive and lower R values.
Mine are a rigid heavy sandwich type. I will be writing an article on my blog about them soon. They are 2" foam core (Owens corning formular 150 R-10) with thin white hardboard glued to each side. I live in a condo so it has to look like a shade or blind when viewing it from the outside. I left the inside facing board white (as my walls are white). You can however, paint it to match your walls or do a number of other treatments such as fabric or even put art or posters on it. Imagination is your only limit.
Advantage is the high R value (I will get an R12-15 with the air gap and high performance windows). Disadvantage is weight and storage. I created one piece, no hinge "plugs" for my windows. These are very heavy and clumsy to move on the big window. I have to store them behind book cases and the sofa when not in use. The advantage to this is fewer gaps and that means a greater seal and less heat loss. More convenient and attractive options are available.
Heat loss from a home occurs through conduction (through walls, windows, and roof), convection (air drafts), and radiation (heat emitted from objects). Proper insulation, sealing of gaps and cracks, and using energy-efficient windows and doors can help reduce heat loss. Heating systems should also be well-maintained to operate efficiently and minimize heat loss.
double glazing windows, no open windows
On average, up to 25-30% of heat loss occurs through normal windows. This heat loss can be reduced by using double or triple-glazed windows, adding insulated window coverings, or sealing any gaps around the window frames.
In a house, heat loss can occur through conduction, where heat flows through materials like walls and windows. Convection involves the movement of air that can carry heat away, such as drafts or air leaks. Radiation occurs when heat is transferred in the form of infrared waves, like heat escaping through windows. Proper insulation and sealing of gaps can help reduce heat loss through these mechanisms.
Using storm windows can save up to 20 of energy by reducing heat loss in a home.
To reduce radiation heat loss, you can use reflective surfaces such as foil or reflective paint on walls to reflect heat back into the room. Increasing insulation in walls, windows, and doors can also help reduce radiation heat loss by trapping heat inside. Additionally, using curtains or blinds at night can create a barrier that reduces heat loss through windows.
Heat loss can be caused by conduction (transfer of heat through materials), convection (transfer of heat through fluid movement), radiation (emission of heat waves), and infiltration (uncontrolled ventilation or air leakage). Factors like poor insulation, inefficient windows, drafts, and temperature differentials contribute to heat loss in a building.
Installing windows insulation can improve the energy efficiency of your home by reducing heat loss in the winter and heat gain in the summer. This can help lower your energy bills and make your home more comfortable.
Heat energy is lost from homes through conduction, where heat escapes through walls, ceilings, and windows; convection, where heated air rises and escapes through gaps and vents; and radiation, where heat is emitted through surfaces like windows. Inefficient insulation, drafts, and poor sealing can contribute to heat loss.
True- Apex
Yes, windows are a common area for heat loss in a house during the winter. This is because glass is a poor insulator, allowing heat to transfer easily between the inside and outside. Proper insulation and energy-efficient windows can help reduce heat loss.
To keep heat in and cold out, you can improve insulation in your home by sealing gaps and cracks, adding weather stripping to doors and windows, and ensuring proper insulation in walls, floors, and ceilings. Additionally, upgrade to energy-efficient windows and doors to further minimize heat loss and drafts. Finally, consider using thermal curtains or blinds to reduce heat transfer through windows.