What is a good efficiency rating for a furnace?

High efficiency furnaces offer 90% or more AFUE. These days, 95% AFUE is a common rating among new gas-powered furnaces. So a 95% furnace is more efficient than an 80% furnace.

How much does a 96% efficient furnace cost?

Energy Efficiency

Type	AFUE	Approximate Unit Cost
Standard Efficiency	80% – 89%	$500 – $1,500
Moderate Efficiency	90% – 95%	$1,000 – $3,000
High Efficiency	96%+	$2,000 – $6,000

Is a high efficiency furnace worth the cost?

Assuming your furnace is replaced after 15 years of use (what we recommend) you would get a total fuel savings of $1,318.05. A 90% furnace would save you $927.45 in fuel, compared to an 80% furnace. You can see how a high-efficiency furnace may end up being worth the extra money it costs you at the time of purchase.

How long should a high efficiency furnace last?

A well-maintained furnace can last at least 15 to 20 years, but completing annual maintenance and being diligent with repairs can extend its life even longer.

Is it worth repairing a 20 year old furnace?

Furnaces 20 years old or older become increasingly inefficient over time and can crack and leak, putting you and your family in danger. If your furnace is between 16 and 20 years old and constantly breaking down, then you should strongly consider having it replaced.

Does ductwork need to be replaced?

“If your ductwork is over 15 years old, you probably should replace it. Ductwork has a maximum lifespan of 20-25 years. By 15 years, however, it begins to deteriorate, significantly reducing your HVAC system’s efficiency, so replacement is the prudent option.”

Does a 2 stage furnace use more electricity?

For two-stage designs, the DOE test procedure consistently shows a reduction in energy consumption by about 3% compared to single-stage furnaces at the same AFUE level. In contrast, the 2006 AHRAE test procedure shows almost no difference in the total energy consumption at the same efficiency level.