Window AC / September 19, 2018 / Lundy Brochu
An additional benefit of a properly sized air conditioner is humidity control. While these units are operating moisture condenses on the evaporator coil just like a dehumidifier. Probably the most common problem with window air conditioners is that they sometimes develop rattling noises due to vibration. This is not a serious problem and can be rectified very easily by checking to make sure all screws are tight and check that the unit is mounted correctly in the window and not twisted or stressed. Air Conditioning is something that many people look at installing every year. There are many options when it comes time to make that decision.
The answer is It depends on the wall thickness. Sleeve specifications for some window air conditioner manufacturers include the maximum wall thickness before it will cover part of the louvers. For example Amanas 18000 BTU models have a max of 8.5 inches. If the wall thickness is at or below that these models can be used in as a wall air conditioner without adversely affecting function. So whats the problem if the wall covers a little of the louvers? Two things: 1) restriction of air movement and therefore reduced efficiency and 2) these units pull air in very powerfully. Cut wall edges could become loose allowing material to be sucked into the unit and potentially causing damage.
To help make that decision more clear I will explore some of the positives and negatives of the two major options. Ductless split type units are also becoming more of an option. I will do another article on that option. To include that in this article would just be more confusing. So for now we will just look at window air conditioners and central air conditioning. Central air conditioning is the best way to go if you already have a central hot air heating system already installed in your house or building. The advantage that you have is that you already have the air handler or blower part already installed.