Gas Furnace Efficiency

Non weatherized mobile home furnaces must be 80 percent efficient.

Gas furnace efficiency.

The prestige series r98v rheem s most efficient gas furnace has an afue rating of up to 98 7 percent making it the most efficient model we came across during our research. Upgrading your furnace or boiler from 56 to 90 efficiency in an average cold climate house will save 1 5 tons of carbon dioxide emissions each year if you heat with gas or 2 5 tons if you heat with oil. Legacy line fixed speed 90 efficiency gas furnace. The price of a furnace generally rises in step with its fuel.

As of january 2015 these requirements are pending. Weatherized gas furnaces must be 81 percent efficient. With a bryant legacy line gas furnace you can rely on excellent dependable comfort year round. Lennox gas and oil furnaces are engineered to deliver perfect warmth efficiency and energy savings.

If efficiency is a hot button for you but budget is your primary concern consider our comfort 90 afue gas furnaces. Fully communicating controls offer advanced diagnostics to exchange system information and to ensure optimal performance and efficiency. Stay comfortable in your home with the reliable legacy line of gas furnaces. If you have a furnace that is at least 10 years old it probably has an afue somewhere between 60 and 70 meaning up to 40 cents of every dollar you pay for fuel is wasted.

Weatherized oil furnaces must be 78 percent efficient. The lowest efficiency allowed by law for new gas furnaces is 78 percent and some new models achieve 97 percent near total efficiency. Non weatherized oil furnaces must be 83 percent efficient. Modulating gas heat and variable speed blower provide precise comfort quiet operating sounds and high energy savings.

Almost all of the best high efficiency gas furnaces below have the added benefit of being listed on the energystar highest efficiency gas furnaces of 2020 selection. All gas furnaces installed in the northern states about 30 in total must be 90 percent efficient. The r98v s value comes from a modulating design and a variable speed blower. The dave lennox signature slp98v gas furnace features efficiencies up to 98 7 afue.

Going into the new year many of these same furnaces were the best furnace in 2019 as well so plan ahead and get the right furnace with a long life ahead. These furnaces feature insulated cabinets for quieter operation.