Typical condensing furnaces have an AFUE rating of at least what percentage?

Condensing furnaces are designed to maximize energy efficiency by utilizing the heat in the exhaust gases that would typically be lost in conventional furnaces. The Annual Fuel Utilization Efficiency (AFUE) rating is a measure of a furnace's efficiency in converting fuel to heat over a year.

A typical condensing furnace achieves an AFUE rating of at least 90%, indicating that it converts at least 90% of the fuel it consumes into usable heat, with only 10% or less wasted. This level of efficiency is made possible due to the integration of advanced technology in condensing furnaces, which captures and uses the latent heat from the flue gases.

The emphasis on high AFUE ratings reflects the growing concern for energy conservation and the quest for more environmentally friendly heating options. A condensing furnace with an AFUE of 90% or higher not only helps reduce fuel consumption but also lowers utility bills and decreases carbon emissions, making it a more sustainable choice for homeowners.

While other ratings, such as 85% or lower, may represent traditional non-condensing furnaces, they do not reflect the efficiency standard set for modern condensing models, further substantiating that a typical condensing furnace would have an AFUE rating of