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.
A BTU is a unit of energy used globally in heating and air conditioning industries, but not commonly used elsewhere. When used as unit of power, BTUs per hour is the commonly used term that refers to the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. To convert watts to BTUs and vice versa, here are the conversion ratios: