(Near I-70 and Harlan)
Wheat Ridge, CO 80033
In order to understand high efficiency furnaces, you must first understand what makes it highly efficient. We measure a furnace’s efficiency by annual fuel utilization efficiency, or AFUE. All new furnaces and boilers are required by the Federal Trade Commission to clearly display their AFUE so that the consumers can make a more informed decision when shopping for a new furnace and comparing them. The AFUE is the measure of how efficient an appliance uses the energy it consumes.
More specifically, the AFUE is the ratio of the furnace’s heat output when compared to the energy it uses. For example, if a furnace displays the AFUE of 95 percent, this means that 95 percent of the fuel it uses becomes heat. The other 5 percent escapes from gaps in the chimney and other places. However, the AFUE does not include the heat that may be lost through places such as:
Up to 35 percent of heat put out by a furnace will commonly escape from places like these. Continue reading →