Highly social, Prairie Dogs live in large colonies called âtownsâ and in collections of families that can span hundreds of acres. A Prairie Dog town may contain 15 to 26 family groups, made up of a series of burrows with mounded entrances. Mother Prairie Dogs provide most of the care for the young.
BTU, or British thermal unit, is the industry-standard used to measure the heating efficiency of furnaces. In addition to BTU ratings, furnace manufacturers might include a Manual J Load rating and a percentage of energy efficiency.
Btu, an abbreviation used for the term British thermal unit, is a measure of. heat energy. One Btu is equal to the amount of heat required to raise the. temperature of one pound of water by 1Â° farenheight. Different fuels. produce different amounts of heat energy when burned.