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.
Time's Up. Generally speaking, a furnace can be expected to last between 15 and 20 years. This average varies, of course, based on the quality of the unit, how it's used and whether it has been properly maintained.t can also depend on the specific type of unit, with forced air systems with a heat pump at the lower end of the range (at around 15 years), and gas-or oil-fueled models coming in at around 18 years.