Installing this weatherstripping will greatly reduce the air gaps for air to be able be pulled back in from the exterior. It is important to keep humidity levels low if you have allergies. If you camp in your RV during the hot summer, you'll know how difficult it can be to keep the coach warm in the winter and cool in the summer. You can hire a professional to help you install the split ACs if necessary. Most venting units are installed horizontally. You may find that the insulation is not adequate to make a room comfortable if you convert an attic. The unit features a bottom edge to grab on to, but this can only accommodate fingertips. Unfortunately, even though some people are creative and have created their own inventions there are still no portable AC units with window kits that will fit a Casement window. When choosing the right one, you will want to take into consideration a variety factors including the size and layout the room. Keeping your house dry helps to reduce allergies by reducing mold and dust mites. While this may not be a concern for those with large living spaces, it can be a problem in smaller homes. These units can be quite heavy and loud because all the machinery is indoors.