1 stage 2 stage and variable capacity gas furnaces.
Residential gas furnace ratings.
New systems are very energy efficient with efficiencies as high as 98 5 percent.
For example an afue rating of 96 percent means the furnace produces 96 btu of useful heat for every 100 btu of natural gas burned.
All of our furnace reviews are available here.
In the 70s most gas furnaces had an afue around 65.
Six other brands earn very good ratings including american.
The fleet efficiency or furnace rating of a particular furnace brand indicates nothing about furnace quality or furnace durability.
Bryant gas furnaces are capable of very high afue ratings of up to 90 or more.
It features a tubular aluminized steel primary heat exchanger and a 4 speed direct drive psc motor.
Most new furnaces display an annual fuel utilization efficiency afue rating which is a measure of fuel efficiency.
The single stage furnaces perform between 80 and 95 afue while two stage models operate between 80 and 96 7 afue ratings.
These top furnace brands have strong contractor and service networks offering professional assistance throughout the year.
10 total furnaces are produced in a range of sizes from about 60 000 btu h to more than 140 000 btu h.
Furnaces with high afue ratings can save you a significant amount of money in heating and electricity bills.
Of the 24 gas furnace brands we rated payne stands out as the most reliable earning an excellent rating for predicted reliability.
What type of boiler.
Efficiency is measured by afue annual fuel utilization efficiency which refers to how well your furnace translates fuel into heat.
The efficiency rating of the furnace is 80 afue and its self diagnostics ensure quality performance.
Notes on furnace ratings.
Boilers are fueled by natural gas heating oil propane electricity or a biodiesel oil blend.
Today the bare minimum allowed by law is 78.
Trane s gas furnaces combine fuel efficiency with noise reducing technology for complete comfort.
York s tg8s provides single stage heat with a constant speed psc fan motor.
The modulating gas furnace by trane operates at an afue level of 97 3 which is highly efficient.