Best Answer: BTU is an old fahioned term British Thermal Units and was used to calculate the amount of energy required to raise the temp of a room by a degree (using Therms as a unit here too), and is uses an energy calculation rather than a straight how much air does it push sort of calculation.est Answer: BTU is an old fahioned term British Thermal Units and was used to calculate the amount of energy required to raise the temp of a room by a degree (using Therms as a unit here too), and is uses an energy calculation rather than a straight how much air does it push sort of calculation.
Buses that primarily operate service within the city, but are not limited to this area. Local bus service varies depending on the route, but many run seven days a week and nearly 24 hours a day.
Metro Transit operates 137 routes â 70 are local-service routes, 51 are express routes, and 16 contract service routes using a fleet of 913 buses. The majority of the company's fleet (790) are standard 40-foot buses while 115 are articulated (accordion) buses, with 16 small buses, and two coach buses.