What is a BTU?Post created: 2015-10-16 Type of Equipment: Furnace Views: 224
This question was created on the page: https://www.furnacecompare.com/furnaces/trane/xb90.html.
On 2015-10-16 Gary wrote:
Here is a very basic explanation: BTU is short for British Thermal Unit and is a basic measure of energy needed to raise the temperature of one pound of water by one degree. For example, the amount of energy needed to heat 16 ounces of water from 50 to 51 degrees is one BTU.