Boiler problems like these could be caused by a faulty pump, mineral build up or air in the heating pipes of your boiler. On average, the boiler life span is around 10-15 years. You might consider replacing an older boiler with a more modern boiler. Heating technology has significantly advanced in the past 20 years. A new, energy efficient boiler will pay for itself quickly with the energy you save.
Most plumbers, pipefitters, and steamfitters learn their trade through a 4- or 5-year apprenticeship. Apprentices typically receive 2,000 hours of paid on-the-job training, as well as some classroom instruction, each year. In the classroom, apprentices learn safety, local plumbing codes and regulations, and blueprint reading. They also study mathematics, applied physics, and chemistry. Apprenticeship programs are offered by unions and businesses. Although most workers enter apprenticeships directly, some start out as helpers. The Home Builders Institute offers a pre-apprenticeship training program in plumbing and other trades.