Each model on the list delivers proven durability and quality.
Most efficient furnace 2018.
While trane boasts impressively high efficiency across its entire lineup of furnaces it s worth noting that ruud has two of the most state of the art models around with energy star naming the u97v and u98v two of its most efficient furnaces for 2018.
Their modulating gas valves allow the furnaces to run anywhere from 40 to 100 capacity.
The r98v s value comes from a modulating design and a variable speed blower.
This is one of the more efficient single stage furnaces available.
The modulating multi stage gas valves allow the arcoaire vc 97 to operate on a quieter low fire setting unless thermostat calls for more fire.
Best single stage gas furnaces 2018.
Featuring self configuring control arcoaire vc 97 furnaces are built with stainless steel primary and secondary heat exchangers and achieve 97 afue.
These furnaces are more affordable though don t offer quite the same climate control.
The price of a furnace generally rises in step with its fuel.
While some homeowners prefer to install a furnace with standard afue rating to save money on initial furnace replacement costs it s often a good idea to opt for higher energy efficient brands if your budget allows.
Arcoaire vc 97 series with observer control.
A mid efficiency furnace will have an 80 to 85 afue rating while a high energy efficient unit can get up to 90 to 97 afue rating.
The lowest efficiency allowed by law for new gas furnaces is 78 percent and some new models achieve 97 percent near total efficiency.
The energy star most efficient 2020.