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.
Radiator BTU calculator. The heat output or 'BTU' (British Thermal Unit) calculator is a great way to work out how much radiator power you need.There are several factors which can affect this, such as room dimensions, heating levels and types of window, which are all covered in our radiator BTU calculator.adiator BTU calculator. The heat output or 'BTU' (British Thermal Unit) calculator is a great way to work out how much radiator power you need.