It is generally not recommended to use the same outlet for both a heater and an air conditioner simultaneously. The reason is that both of these appliances tend to draw a significant amount of power, and using them simultaneously can potentially overload the electrical circuit.
Heaters, especially high-wattage ones like space heaters, consume a considerable amount of electricity to generate heat. Air conditioners, on the other hand, require substantial power to run compressors and fans. Running both appliances on the same circuit could exceed the circuit's capacity and trip the circuit breaker or potentially cause overheating, which can be a fire hazard.
To ensure safety and prevent electrical issues, it's best to connect each appliance to a separate outlet or use different circuits. If you intend to use both a heater and an air conditioner in the same room, consider using outlets on different circuits or consult with a qualified electrician to evaluate the electrical capacity and make any necessary adjustments to accommodate both appliances safely.
Remember, electrical safety is crucial, and it's important to follow the manufacturer's guidelines and consult with professionals when dealing with electrical installations and connections.