Definitions for

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See Chapter 12, Efficiency Ratings, for more information.

Annualized Fuel Utilization Efficiency is a measure of your furnace's heating efficiency. The higher the AFUE percentage, the more efficient the furnace. The minimum percentage established by the DOE for furnaces is 78.

This measurement rates fireplaces and wall heaters that are official heating sources

Annual Fuel Utilization Efficiency is the rating that reflects the efficiency of a gas furnace in converting fuel to energy.

Abbreviation for "Annual Fuel Utilization Efficiency," it is an energy-efficiency ratio comparing the useful energy produced by an appliance in a year with the amount of energy it consumes. Thus, the higher the AFUE rating, the better the efficiency.

Annual Fuel Utilization Efficiency. A good gauge when comparing true efficiencies of different heating appliances.

a rating used to measure the annual fuel utilization efficiency Air, ambient: the air surrounding any object

Annual Fuel Utilization Efficiency. A measure of a gas furnace's efficiency in converting fuel to energy - the higher the rating, the more efficient the unit.

Annual fuel utilization efficiency; combustion heating equipment efficiency is expressed in terms of AFUE. New equipment typically ranges from about 78- to 96-percent AFUE. Higher AFUE ratings indicate more efficient equipment.

Annual Fuel Utilization Efficiency. (AFUE) Seasonal efficiency of a gas-fired furnace or boiler. Takes into account cyclic operation. The higher the number, the more efficient the heating equipment.

Stands for Annual Fuel Utilization Efficiency. This number represents how efficiently a furnace converts fuel to energy. The higher the rating, the more fuel-efficient the furnace is.Percentage of fuel used for heating.

Annual Fuel Utilization Efficiency. The measure of seasonal or annual efficiency of a residential heating furnace or boiler. It takes into account the cyclic on/off operation and associated energy losses of the heating unit as it responds to changes in the load, which in turn is affected by changes in weather and occupant controls.

Annual Fuel Utilization Efficiency. A measurement used to rate furnace efficiencies by dividing the ratio of heat output by heat input.

(Annual Fuel Utilization Efficiency) - A rating that denotes the efficiency of gas heating equipment. It is the amount of heating your equipment delivers for every dollar spent on fuel. A higher rating indicates more efficient equipment. This rating is calculated in accordance with the Department of Energy test procedures.

Annual Fuel Utilization Efficiency, a standard government rating for energy Efficiency.

Annual Fuel Utilization Efficiency applies to furnaces - both gas and oil. It describes the percentage of heat produced for every dollar of fuel consumed.

Annual Fuel Utilization Efficiency. A measure of a furnace's heating efficiency. The higher the AFUE percentage, the more efficient the product. The US government's established minimum AFUE rating for furnaces is 78%.

Annual Fuel Utilization Efficiency. AFUE measures average annual seasonal efficiency of a gas furnace or boiler and may be expressed as total heating output divided by total energy (fuel) input. AFUE's for furnaces can range from 55% to 97%.

The ratio of annual output of useful energy or heat to the annual energy input to the furnace. The higher the afue, the more efficient the furnace -- higher efficiency translates to more savings on fuel bills. This will range from 80% to 95%.

Annual Fuel Utilization Efficiency. Refers to the ratio of annual output of useful energy to the annual energy input to the furnace. The higher the AFUE, the more efficient the furnace.

(annual fuel utilization efficiency): an efficiency rating that measures the efficiency with which gas and other fossil-fuel-burning furnaces and boilers use their primary fuel source over an entire heating season. It does not take into account the efficiency with which any component of the system, such as a furnace fan motor, uses electricity. AFUE is expressed as a percentage that indicates the average number of Btu worth of heating comfort provided by each Btu worth of gas (or other fossil fuel) consumed by the system. For instance, a gas furnace with an AFUE of 80% would provide 0.8 Btu of heat for every Btu of natural gas it burned.

The measurement for heating efficiency is AFUE (Annual Fuel Utilization Efficiency), which ranges from 80% to 95% for new systems. The higher the AFUE, the more efficiently the system performs, the greater your energy savings.

Acronym for Annual Fuel Utilization Efficiency. This is a measurement of the efficiency of a gas furnace. The higher this rating is the more efficient the furnace will be.

Annual Fuel Usage Efficiency. Ratio of annual output of useful energy or heat to annual energy input to heater. Only heat leaving as hot water is deemed usage and calculated as part of space heating efficiency.

Annual Fuel Utilization Efficiency. The AFUE percentage tells you how much energy is being converted to heat. The higher the number the greater the efficiency.

Annual Fuel Utilization Efficiency, a rating that reflects the efficiency of a gas furnace in converting fuel to energy. A rating of 90 means that approximately 90% of the fuel is utilized to provide warmth to your home, while the remaining 10% escapes as exhaust.

Annual Fuel Utilization Efficiency. Indicated as a percentage, your furnace’s AFUE tells you how much energy is being converted to heat. For example, an AFUE of 90 means that 90% of the fuel is being used to warm your home, while the other 10% escapes as exhaust with the combustion gases.

The annualized average efficiency of a fuel-fired appliance, taking into account the effect of on-off operation. The higher the AFUE the lower the operating costs for the end user.