By: Patricia Cermignano

Do you use radiators as a source of heat throughout your home? If so, your home has a boiler to thank for that. According to the Cambridge Dictionary, a boiler is "a device that heats water, especially to provide heating and hot water in a house".

How Do Boilers Work?

A boiler contains an enclosed vessel filled with water or gas. Using an external source of energy, the water or gas inside the enclosed vessel gets heated and then distributed to the radiators throughout your home in either the form of steam or hot water. This is what generates heat and helps keep your home warm and comfortable during the winter. To determine the energy efficiency of your boiler, you refer to the Annual Fuel Utilization Efficiency (AFUE) rating. Any boiler manufactured after 1992 must have an AFUE rating of at least 80%.


If you ever experience issues with your boiler, there are a few troubleshooting steps that we recommend before calling our office to schedule a service appointment:

  • Check the settings on your thermostat to make sure that the temperature control selector is set above the current room temperature and that the system switch is on the HEAT or AUTO setting
  • Try to get the boiler to turn on by raising the thermostat to its highest temperature setting
  • Check the power disconnect switch by the boiler
  • Check the fuse/breaker at the electrical panel for the boiler
  • Check to make sure the gas control valve to the boiler is open
  • Check the pilot light (electronic ignitions will not have a pilot light)

If the problem still persists, please call our office at 610-642-6323 to schedule a service appointment with one of our skilled and experienced HVAC technicians.

To learn more information on boilers, please visit our website.