Gas Furnace Efficiency Ratings

Efficiency is measured by afue annual fuel utilization efficiency which refers to how well your furnace translates fuel into heat.

Gas furnace efficiency ratings.

In the 70s most gas furnaces had an afue around 65. Oil furnaces are typically priced lower and provide more heat per btu but are less efficient. Rheem furnaces rank highly in terms of ease of maintenance sound rating and energy efficiency. When comparing furnace reviews you should consider a variety of factors like gas type efficiency cost warranty and more.

The r98v s value comes from a modulating design and a variable speed blower. 4 5 out of 5 furnace options. The better units are equipped with variable speed blowers. So a 95 furnace is more efficient than an 80.

The brand offers a variety of furnaces to choose from with a life expectancy of between 16 and 20 years. They re both very dependable and are a good value based on cost. 1 stage 2 stage and variable capacity gas furnaces in 80 and 90 plus options. Weatherized oil furnaces must be 78 percent efficient.

Today the bare minimum allowed by law is 78. Trane s gas furnaces combine fuel efficiency with noise reducing technology for complete comfort. Lennox slp99v variable capacity gas furnace series. An oil furnace generates heat using oil while gas furnaces are fueled by natural gas propane.

These days 95 afue is a common rating among new gas powered furnaces. Precise comfort technology allows the furnace to keep the temperature held exactly where you want it. In this type of furnace 20 of the energy produced by natural gas is expelled as exhaust. The single stage furnaces perform between 80 and 95 afue while two stage models operate between 80 and 96 7 afue ratings.

Reliability is the hallmark of these identical brands. Weatherized gas furnaces must be 81 percent efficient. The price of a furnace generally rises in step with its fuel. This premier furnace boasts an efficiency rating of up to 99 that means it essentially converts every last bit of energy it uses into heating the home.

All gas furnaces installed in the northern states about 30 in total must be 90 percent efficient. The modulating gas furnace by trane operates at an afue level of 97 3 which is highly efficient. Non weatherized oil furnaces must be 83 percent efficient. As of january 2015 these requirements are pending.

The lowest efficiency allowed by law for new gas furnaces is 78 percent and some new models achieve 97 percent near total efficiency.