How to convert BTU/hr to watts. 1 BTU/hr = 0.29307107 W. So the power P in watts (W) is equal to the power P in BTUs per hour (BTU/hr) times 0.29307107 and is equal to the power P in BTUs per hour (BTU/hr) divided by 3.412141633: P(W) = P(BTU/hr) Ã 0.29307107 = P(BTU/hr) / 3.412141633. Example.
chroÂ·nolÂ·oÂ·gy. n. pl. chroÂ·nolÂ·oÂ·gies. 1. The science that deals with the determination of dates and the sequence of events. 2. The arrangement of events in time. 3. A chronological list or table.
Definition of annals. 1  1 : a record of events arranged in yearly sequence the annals of the twentieth century. 2  2 : historical records : chronicles the annals of Tacitus in the annals of sports. 3  3 : records of the activities of an organization quoted from the Annals of the Association of American Geographers.