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.
Last update: 4/20/2017 10:13:12 AM. Downtown DART Rail Service Disruption for Track Repair Scheduled for Sunday, April 23. Current Route Detours (Effective for routes 1, 11, 31, 42, 161, 206, 278, 405, 444, 466, 510, 515, 522, 538, 541, D-Link (722)) Buses to Replace Part of Green Line During TxDOT Work, Effective for Sunday, April 30, 2017 Only.