In theory, it is possible to install two window air conditioners in the same window, but it's generally not recommended. Window air conditioners are designed to cool a specific area, and having two units in the same window may lead to several issues:
Insufficient support: Window air conditioners are heavy appliances, and installing two of them in a single window could exceed the window's weight-bearing capacity. This could lead to instability and safety hazards.
Restricted airflow: Placing two air conditioners close together may obstruct the airflow for both units. It can reduce their efficiency and cooling capacity, as the units might end up competing for the same air supply.
Space constraints: Window air conditioners require adequate space around them for proper ventilation and heat dissipation. Installing two units side by side may not leave enough space for optimal performance.
Increased energy consumption: Running two air conditioners simultaneously can significantly increase energy consumption, leading to higher electricity bills.
If you need to cool a larger area or a room with two separate spaces, it's better to consider a single larger air conditioner or look into other cooling solutions like a central air conditioning system or a ductless mini-split system. These options are better suited for cooling larger areas and can be more efficient and cost-effective in the long run. Additionally, if you're unsure about the feasibility of installing multiple air conditioners, it's a good idea to consult with a professional HVAC technician who can assess your specific situation and provide appropriate recommendations.