Boiler Inspection – When Should a Boiler Be Replaced?
Not considering any reasons of economy or efficiency, the only time a boiler requires replacement is when a leak has developed that cannot be effectively patched. In some cases, when you fire a boiler that has not been operational for a day or more you may notice (if the firebox is accessible for a visual inspection) a slight amount of water dripping into the firebox. More often than not, this is the result of condensation caused by cold water circulating into the boiler or some slight joint movement.
As the boiler heats up, various sections tend to move slightly, which may sometimes result in an open joint that allows water to drip out. As the sections continue to heat up, however, they expand and compress the joint, sealing the leak. This condition is usually not an issue, but if you notice water dripping into the firebox it is recommended you have the problem checked by a professional.
Sometimes, homeowners use a regular-type domestic water heater instead of a boiler in the heating system. This is acceptable from a safety point of view, because there is a high-temperature and pressure control, as well as a thermocouple control for the gas valve. The drawback, however, is that a water heater has a short projected life, typically of seven to ten years, and is usually guaranteed by the manufacturer for only five years. To prevent a premature failure, a Boiler Inspection should be performed regularly.