2006-10-22 13:58:39 · 3 answers · asked by Bill 2 in Consumer Electronics ➔ Other - Electronics
The energy efficiency of a forced-air furnace is measured by its AFUE - annual fuel utilization efficiency. This number calculates the percent of energy used that is returned to your home in the form of warm air.
EnergyGuide
Almost all home appliances, including refrigerators, dishwashers and laundry units, display a prominent yellow-and-black EnergyGuide.
EnergyStar
You can also look for the EnergyStar logo. This identifies appliances as being among the most energy-efficient products in their classes. They usually exceed minimum federal energy-use standards by a significant amount.
2006-10-22 14:06:49 · answer #1 · answered by anon51 3 · 0⤊ 0⤋
The energy efficiency of a forced-air furnace is measured by its AFUE - annual fuel utilization efficiency. This number calculates the percent of energy used that is returned to your home in the form of warm air.
2006-10-22 22:10:26 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It is the number on the government's efficiency tag that shows how your appliance compares in energy consumption to the best and worse one of that particular type. In theory you look at that number on several models until you find the one that you can afford and that is cheapest to run. In reality the appliance makers have jacked up the price on the more efficient ones to maximize their profit and you usually end up not being able to afford the best.
2006-10-22 21:05:12 · answer #3 · answered by Rich Z 7 · 0⤊ 0⤋