Upgrading your furnace or boiler from 56 to 90 efficiency in an average cold climate house will save 1 5 tons of carbon dioxide emissions each year if you heat with gas or 2 5 tons if you heat with oil.
Heating oil furnace efficiency.
Most new oil furnaces have afue ratings between 80 and 90 while their gas counterparts boast ratings between 89 and 98.
An efficiency starting point.
Up to 92 afue.
Although gas furnaces are more efficient than oil furnaces that.
While up to 92 afue performance is impressive there are much more energy efficient furnaces from both rheem and other brands mentioned.
For example a 90.
Let s take a look at how oil fired furnaces stack up.
A few high end brands have an efficiency of 95 by using a condenser.
They use less fuel than other furnace types but most do not achieve an efficiency greater than 90.
There s no doubt that how much heating bang for the buck you get is one of the most important considerations in choosing a furnace.
An oil fueled furnace is measured by the unit s annual fuel utilization efficiency afue which is a comparison of the heat output and the total energy used by the furnace.
Oil furnaces are typically not very efficient.
This furnace is recognized for its easy installation and maintenance saving you in the short and long term on installation and repair costs.