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.
Engine life vs. Oil Temperature. Properly maintained 911 engines can last over 300,000 miles when oil temperature is kept in the optimal 180Â°-210Â°F range. As oil temperature rises engine life declines rapidly. If the temperature is too high the engine will fail in short order. But why?