How many watts does it take to run a 13500 btu air conditioner?

The power consumption of a 13,500 BTU air conditioner can vary depending on the specific model and its energy efficiency rating. However, as a general guideline, air conditioners of this capacity typically require around 1,500 to 1,800 watts of power to operate.

Air conditioner power consumption is usually specified in terms of the cooling capacity measured in British Thermal Units (BTUs) per hour. To estimate the power consumption in watts, you can use a general rule of thumb that assumes a power factor of 1 (unity) for simplicity.
1 BTU per hour is approximately equal to 0.293 watts. Therefore, for a 13,500 BTU air conditioner:

Power Consumption (in watts) = BTU/hr x 0.293

Power Consumption = 13,500 x 0.293

Power Consumption ≈ 3,959.5 watts or approximately 3,960 watts

Keep in mind that this is an estimated power consumption, and the actual power draw may vary depending on factors such as the specific efficiency rating of the air conditioner, operating conditions, and other features such as the fan speed and thermostat settings.

It's important to note that the power consumption mentioned above is the running power. During startup, air conditioners may require a higher initial power surge to start the compressor and other components, commonly known as the "starting current." This surge can be higher than the running power but lasts only for a short duration.

For accurate and specific power consumption information, it is recommended to refer to the manufacturer's specifications or consult the user manual of the particular 13,500 BTU air conditioner model you are using or considering to purchase.