Surgery - Colorectal. In brief: Yes, most docs can. Most hemorrhoids should first be treated by conservative measures, such as bulking the stools, education to avoid bad habits like straining, sitting for long periods of time, etc.
Either system will have a burner. 23 years may very well be beyond the typical life expectancy of a oil burner, but a furnace or boiler should last considerably longer than 23 years. The boiler of my house here in MA is 58 years old and still works fine. I am starting to consider replacements, however.
Oil Furnace Advantages. One of the most popular aspects of oil furnaces is their lifespan. Manufacturers usually guarantee ten years of heat from their furnaces, but most people report 15 to 20 years of service. The efficiency of furnaces is measured by AFUE, which stands for annual fuel utilization efficiency.