Contact Us

By providing your phone number to Classic Plumbing and Heating, you agree that we may send you text messages. Message and data rates may apply. Message frequency will vary. Reply STOP to opt - out of future messaging or HELP for more information.


If your home has hot water radiators in each room for heat, you have a boiler to heat the water. Like a furnace, the energy efficiency of a boiler is given as the Annual Fuel Utilization Efficiency (AFUE). Boilers manufactured since 1992 must have an AFUE of at least 80%. We offer a complete line of gas boilers starting at 80% AFUE and up.

Gas Boiler Product Offering


Aluminum Gas Boiler

Model Family: GenGBAlum
Annual Fuel Utilization Efficiency: Up to 94.1% AFUE
Energy Star Rated: N/A
Heat Exchanger Warranty: Limited warranty upon timely registration.
Warranty: Limited warranty upon timely registration.
Manufacturer's Stated Benefits:
  • Gas fired water boiler with cast aluminum heat exchanger
  • Designed to operate in low temperature condensing applications
  • High grade stainless steel burner features quiet operation