ESB stands for extra special bitter. This style is known for its balance and the interplay between malt and hop bitterness. ESB stands for extra special bitter.
I have a large room with a valted ceiling 23ft.X20ft. with southern exsposure that gets lots of sun on two sides of the room. We are having 90* to 100* days for several months I needed the largest AC window unit I could find that runs on 120V. This Friidaire 15,100-BTU was the largest I could find and it works great. I can set the timer to come on three to four hours before I get home and the room is very cool when I get home. Unit runs fairly quit and works great to cool the room down as cool as you want it or can stand it.
Cooling Capacity & BTUs. Choosing the right BTU, or British thermal unit, for your room size will make sure get the most energy-efficient cooling system for your home. The BTU rating is a number that essentially tells you how quickly and effectively a unit can cool a room. Ratings generally range from 5,000 BTUs to more than 20,000. A unit with too few BTUs may not be able to cool a large space efficiently, while an oversized air conditioner in a small space will cycle on and off, wasting energy and decreasing the unit's ability to adequately dehumidify the room.