Really you should recognize one of the most important things for the winter season season is having proper insulation. I guess that having proper insulation is also important in the warm season too! However I assume that it is more important in the winter season with the bitter cold. I assume that more people are uncomfortable being too cold. I do not guess that people have a hard time being too hot. Since, when it is too cold outside it is almost too hard to cope with being cold as your bones hurt. So having proper insulation for the winter season time is key! One of the best ways to have insulation is to make sure that you have the insulation installed behind your walls. If you have an older home you might want to get your insulation checked! The insulation does begin to deteriorate after a while. So if you have not had your insulation checked in the last year, you may want to have that checked actually soon. Also, another way to have your housing fully insulated is to make sure that all of the cracks in your condo are filled, while most of the cracks are found by windows as well as doors. Also make sure that no one leaves any windows or doors open when it is cold outside. If there are any cracks or any windows as well as doors are open the warm air from your lake house will escape. This will cause your lake house to become actually cold feeling. I do not guess that you want that cold feeling in your house. So before it gets too cold outside call your local HVAC business immediately to check your insulation. For all you think you might have no insulation left behind your walls.