Sharing an air conditioner with another room through the gap between the ceiling and the wall can be a challenging task, but it's not impossible. Here's a solution you can try, keeping in mind that it might not be as efficient as having a dedicated air conditioner for each room:
Install a Ducted Air Transfer System: One way to share the air conditioner's output with another room is by using a ducted air transfer system. This involves creating a duct or channel between the two rooms to allow the conditioned air to flow from one room to the other. Here's a step-by-step guide:
a. Measure and Plan: Measure the distance between the air conditioner's output vent in the first room and the gap between the ceiling and the wall. Plan the path for the duct, making sure it's as straight and direct as possible.
b. Cut the Openings: In both rooms, cut openings in the ceiling and the wall. The openings should align with each other and should be large enough to fit the duct.
c. Install the Duct: Insert the duct between the two openings, ensuring a secure and airtight fit. You can use flexible ductwork or rigid metal ducts for this purpose.
d. Install Grilles or Vents: To control the airflow and prevent debris from entering the duct, install grilles or vents on both ends of the duct.
e. Seal and Insulate: Seal all joints and connections in the duct system to prevent air leakage. Also, consider insulating the duct to minimize temperature loss during transfer.
Use a Fan: Another option is to place a fan at the output vent of the air conditioner in the first room. The fan can help push the conditioned air into the gap between the ceiling and the wall, encouraging it to flow into the second room. However, this method might not be as effective as using a proper ducted system.
Consider a Portable Air Conditioner: If the above options are not feasible or effective, you could consider using a portable air conditioner in the second room. Portable air conditioners are standalone units that don't require permanent installation, and they can cool a small area effectively.
It's essential to understand that sharing an air conditioner between two rooms in this manner may not provide equal cooling to both rooms, and the overall efficiency of the air conditioner may be reduced. Additionally, it's crucial to maintain a proper balance of airflow between the two rooms to ensure effective cooling and avoid putting undue strain on the air conditioner. If you're unsure about the best approach for your specific situation, consulting with a professional HVAC technician can provide personalized advice and recommendations.