80.6% A.F.U.E. vs 64.8% A.F.U.E. Gas Furnace Design Heating Requirement @ 60,000 BTU/HR Savings figures are cumulative and do not allow for inflation. Actual savings may vary due to lifestyle, weather, and other factors.

Gas Furnace Efficiencies

Furnaces that are five to ten years old and older may have an Annual Fuel Utilization Efficiency rating (A.F.U.E.) of 65% or less. That means they only generate about 65› worth of heat for every dollar's worth of gas.

Since 1992, a federal regulation has required all gas furnaces to provide an A.F.U.E. Of at least 78%. And today, many furnaces, such as the Rheem Classic 90 Plus Gas Furnace, are rated 90% or higher. The economic benefits of these higher efficient models over older furnaces are obvious. Based on your particular needs, your dealer can help you evaluate which efficiency level is best for you by using the payback period formula.

Limited Warranty Information

The Rheem Criterion II Gas Furnace was developed with reliability and durability in mind. The primary heat exchanger carries a 20-year limited warranty. The integrated furnace control and the draft inducer have a five-year limited warranty. All other parts have a limited warranty of one year.

Extend Your Coverage With a Protection Plus Service Contract

Ask your Rheem dealer about the availability in your area of our exclusive Protection Plus service contract program. When the manufacturer's limited warranty ends, Protection Plus begins, giving you further peace of mind and protection beyond the manufacturer's limited warranty.

Consumer Financing Plans to Fit Every Budget

Participating Rheem dealers provide very attractive financing plans that can make your new heating equipment even more affordable. Just ask your Rheem dealer for all the details.