Franklin Delano Roosevelt was the 32nd President of the United States. A leader during the Great Depression and World War II, he was famous for being the only American presideâ¦nt elected to an unprecedented four terms - from 1933 to 1945. D.k.
The Average Boiler Life Expectancy. Boiler life expectancy depends very much upon the type of boiler that you purchased. The average expectancy of a traditional gas boiler would be between 10 and 15 years, if you keep it well maintained and have it serviced annually. Other boilers, such as electrical devices, will last between 8 and 10 years.
If your furnace were old and worn out, your decision would be easyâbuy a more efficient modelâbut the average life of a well-maintained furnace is 25 years, so yours still has plenty of life in it. If you did replace your furnace with a 97 percent efficient system, you'd cut your heating bills around 20 percent. To see if it's worth spending the money, add up the fuel bills for last winterâyour gas utility will have recordsâthen multiply that sum by 20 percent.