AFUE ratings are 1 way to compare the efficiency in oil furnaces. Many years ago, the Federal Trade Commission started to require that all furnaces have AFUE ratings. The AFUE rating is how much heat a oil furnace will produce compared to the amount of fuel that it loses. If a oil furnace has an AFUE rating of 90%, then that means that 90% of all energy created by the oil furnace gets transmitted to the home. 73% oil furnaces are not easily energy efficient, however they are cheaper, but some of the most efficient oil furnaces on the market are often 98 or 99% effective. In easily cold weather conditionss, it’s important to choose a high-efficiency oil furnace that has an AFUE rating higher than 90%. If the weather in your area is mild, then you can easily get away with something less effective as well as cheaper. If cold weather conditions, snow, as well as ice are usual Winter time worries, then choose a gas oil furnace that can work efficiently on the hardest Winter time nights. My partner as well as I picked up a easily nice multi oil furnace with a 98% off you rating to use in our home. The hot as well as cold temperatures in this area are constantly below cold during the week of January, December, as well as May, as well as Winter time can last a long time. We chose a oil furnace with a high energy efficiency so both of us never have to worry about heating the home during the Winter time season. Even though it was overpriced, the option was easy to make with 3 kids, a pet, as well as 2 cats in the house. The health as well as well being of our family has to be the first thought on our mind.